2001 Housing Characteristics Tables

Usage Indicators Tables

(Million U.S. Households; 60 pages, 247 kb)

Contents Pages

HC6-1a. Usage Indicators by Climate Zone, Million U.S. Households, 2001 5

HC6-2a. Usage Indicators by Year of Construction, Million U.S. Households, 2001 5

HC6-3a. Usage Indicators by Household Income, Million U.S. Households, 2001 5 

HC6-4a. Usage Indicators by Type of Housing Unit, Million U.S. Households, 2001 5 

HC6-5a. Usage Indicators by Type of Owner-Occupied Housing Unit, Million U.S. Households, 2001 5

HC6-6a. Usage Indicators by Type of Rented Housing Unit, Million U.S. Households, 2001 5

HC6-7a. Usage Indicators by Four Most Populated States, Million U.S. Households, 2001 5

HC6-8a. Usage Indicators by Urban/Rural Location, Million U.S. Households, 2001 5

HC6-9a. Usage Indicators by Northeast Census Region, Million U.S. Households, 2001 5 

HC6-10a. Usage Indicators by Midwest Census Region, Million U.S. Households, 2001 5

HC6-11a. Usage Indicators by South Census Region, Million U.S. Households, 2001 5

HC6-12a. Usage Indicators by West Census Region, Million U.S. Households, 2001 5

These data are from the 2001 Residential Energy Consumption Survey (RECS) which provides information on the use of

energy in residential housing units in the United States. The RECS is a national statistical survey that collects energy-related

data for occupied primary housing units. RECS was first conducted in 1978; the eleventh and most recent survey, was

conducted in 2001. In the 2001 RECS, data were collected from a sample of 4,822 households in housing units statistically

selected to represent the 107.0 million housing units in the United States. The RECS data are available for the four

Census regions, the nine Census divisions,and for the four most populous States--California, Florida, New York, and Texas.

Data provided here are in the public domain and may be reproduced without permission. Appropriate credit would be

appreciated. A suggested citation is “U.S. Department of Energy, Energy Information Administration, 2001 Residential 

Energy Consumption Survey.”

Electronic Products and Services

Users can view and download selected pages or entire reports, search for information, download data and analysis

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Contact: Stephanie J. Battles, Survey Manager (stephanie.battles@eia.doe.gov)

World Wide Web: http://www.eia.doe.gov/emeu/consumption 
Table HC6-1a. Usage Indicators by Climate Zone, 

 Million U.S. Households, 2001

Usage Indicators

RSE Column Factor:

Total

Climate Zone1

RSE

Row

Factors

Fewer than 2,000 CDD and --

2,000 CDD

or More

and Fewer

than

4,000 HDD

More than

7,000 HDD

5,500 to

7,000 HDD

4,000 to

5,499 HDD

Fewer than

4,000 HDD

0.4 1.8 1.1 1.1 1.2 1.0

Total ............................................... 107.0 9.2 28.6 24.0 21.0 24.1 7.8

Weekday Home Activities

 Home Used for Business

 Yes .............................................. 7.6 0.9 1.9 2.2 1.2 1.3 14.9

 No ............................................... 99.4 8.3 26.8 21.8 19.8 22.8 8.0

 Energy-Intensive Activity

 Yes .............................................. 1.7 0.2 0.7 0.5 Q Q 22.6

 No ............................................... 105.2 9.0 28.0 23.5 20.9 23.9 7.9

 Someone Home All Day

 Yes .............................................. 53.0 4.5 14.0 11.9 10.8 11.7 7.8

 No ............................................... 53.9 4.7 14.6 12.1 10.2 12.3 7.4

Heating

 Heat Home .................................... 106.0 9.2 28.6 23.9 20.7 23.6 7.9

 Do Not Heat Home ....................... 1.0 Q Q Q 0.3 0.5 16.7

 No Heating Equipment ................ 0.5 Q Q Q Q 0.4 34.0

 Have Equipment But

 Do Not Use It .............................. 0.4 Q Q Q 0.2 Q 33.7

Adequacy of Insulation

 Well Insulated ............................... 42.6 3.8 12.3 10.3 7.2 9.1 8.9

 Adequately Insulated .................... 43.1 3.6 10.7 9.8 8.7 10.3 8.1

 Poorly Insulated ............................ 19.4 1.6 5.4 3.7 4.6 4.2 10.3

 No Insulation ................................. 0.9 Q Q Q 0.2 0.3 27.1

 Don’t Know ................................... 0.9 Q Q Q 0.3 Q 30.3

Occurrences of Drafts During

Winter

 Never ............................................ 5.9 0.5 2.1 1.2 0.9 1.3 16.6

 Some of the Time ......................... 6.4 0.5 1.6 1.5 1.4 1.4 14.2

 Most of the ................................... 34.6 3.3 9.8 8.0 7.2 6.3 9.1

 All of the Time ............................... 55.3 4.7 13.9 12.4 10.5 13.8 8.4

 Don’t Know ................................... 4.7 0.4 1.2 0.9 1.0 1.3 16.2

 Thermostat

 Heat Home .................................. 106.0 9.2 28.6 23.9 20.7 23.6 7.9

 Thermostat Available During

 Heating Season ........................ 91.5 8.2 26.4 19.2 17.0 20.7 8.4

 Programmable2

 Yes ........................................ 25.1 2.4 7.8 5.1 5.5 4.3 12.2

 No ......................................... 66.4 5.8 18.6 14.2 11.5 16.3 8.4

 No Thermostat .......................... 14.5 1.1 2.2 4.7 3.6 2.9 11.4

 Do Not Heat Home ..................... 1.0 Q Q Q 0.3 0.5 16.7

Lower Winter Temperature

Settings2

 Daytime When No One is at Home

 Yes .............................................. 47.2 4.2 12.5 9.0 11.0 10.5 9.1

 No ............................................... 48.5 4.5 13.9 13.0 6.9 10.2 8.7

 Unknown ..................................... 10.3 0.6 2.2 1.9 2.7 2.9 12.4

 During Sleeping Hours

 Yes .............................................. 45.7 4.3 11.8 9.6 10.6 9.3 9.0

 No ............................................... 51.1 4.3 14.8 12.5 7.6 11.9 8.6

 Unknown ..................................... 9.2 0.6 2.0 1.7 2.4 2.4 13.2

See footnotes at end of table.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC6-1a. Usage Indicators by Climate Zone, 

 Million U.S. Households, 2001 (Continued)

Usage Indicators

RSE Column Factor:

Total

Climate Zone1

RSE

Row

Factors

Fewer than 2,000 CDD and --

2,000 CDD

or More

and Fewer

than

4,000 HDD

More than

7,000 HDD

5,500 to

7,000 HDD

4,000 to

5,499 HDD

Fewer than

4,000 HDD

0.4 1.8 1.1 1.1 1.2 1.0

Daytime Winter Temperature

When Someone is at Home2

 Heat Turned On ............................ 96.8 8.6 26.6 22.2 18.2 21.1 8.1

 63 Degrees or Less .................... 3.9 0.5 1.4 0.7 0.9 0.4 17.9

 64 to 66 Degrees ....................... 8.4 0.9 2.6 1.8 2.0 1.3 13.9

 67 to 69 Degrees ........................ 23.6 3.0 8.0 5.3 4.2 3.2 9.7

 70 Degrees ................................. 25.7 2.4 6.3 6.7 4.8 5.4 9.9

 71 to 73 Degrees ........................ 16.5 1.2 4.6 4.3 2.8 3.5 11.4

 74 Degrees or More .................... 18.6 0.7 3.7 3.4 3.5 7.3 11.1

 Heat Turned Off ............................ 2.0 Q Q Q 1.0 0.7 18.0

 Unknown/No Answer .................... 7.2 0.6 1.8 1.6 1.4 1.8 15.6

Daytime Winter Temperature

When No One is at Home2

 Heat Turned On ............................ 87.6 8.5 25.6 21.0 14.4 18.0 7.2

 63 Degrees or Less .................... 17.7 2.2 5.1 3.3 3.8 3.2 13.2

 64 to 66 Degrees ....................... 17.2 1.8 5.6 3.7 3.3 2.7 11.0

 67 to 69 Degrees ........................ 19.1 2.4 6.5 4.6 2.6 3.0 11.9

 70 Degrees ................................. 15.1 1.2 4.2 4.6 2.0 3.1 11.8

 71 to 73 Degrees ........................ 8.7 0.6 2.6 2.6 1.2 1.7 13.2

 74 Degrees or More .................... 9.8 0.3 1.6 2.2 1.4 4.3 14.8

 Heat Turned Off ............................ 10.5 Q Q 1.2 4.7 3.6 13.7

 Unknown/No Answer .................... 8.0 0.6 2.1 1.8 1.6 2.0 14.4

Winter Temperature During

Sleeping Hours2

 Heat Turned On ............................ 91.8 8.6 26.2 21.4 15.5 20.1 8.3

 63 Degrees or Less .................... 15.4 2.0 4.4 3.1 3.5 2.4 13.0

 64 to 66 Degrees ....................... 17.4 2.0 5.3 3.5 3.6 3.1 11.0

 67 to 69 Degrees ........................ 21.0 2.4 7.1 5.2 2.9 3.4 10.5

 70 Degrees ................................. 17.4 1.3 4.7 4.9 2.6 4.1 11.4

 71 to 73 Degrees ........................ 9.5 0.5 2.6 2.7 1.4 2.4 15.5

 74 Degrees or More .................... 11.1 0.4 2.1 2.2 1.5 4.9 14.4

 Heat Turned Off ............................ 7.1 Q Q 0.9 3.8 1.8 15.3

 Unknown/No Answer .................... 7.1 0.6 1.9 1.6 1.4 1.7 15.5

Air-Conditioning

Central Air-Conditioning

 Use a Central System ................... 58.6 3.1 13.1 12.9 11.1 18.5 9.1

 All Summer ................................. 28.4 0.7 3.6 5.3 6.0 12.8 12.2

 Quite a Bit ................................... 12.1 0.5 3.4 3.2 1.6 3.4 13.6

 Only a Few Times ....................... 16.8 1.8 5.9 4.2 2.9 1.9 12.5

 Not at All ..................................... 1.4 Q Q Q 0.6 0.4 24.6

 No Central System ........................ 48.4 6.1 15.5 11.2 9.9 5.6 8.5

Window/Wall Air-Conditioning

 Use Window/Wall Units ................ 25.1 2.3 7.9 7.6 3.4 4.0 11.1

 All Summer ................................. 4.9 0.2 1.0 1.5 0.8 1.4 21.0

 Quite a Bit ................................... 5.2 0.5 1.3 1.8 0.7 0.9 19.4

 Only a Few Times ....................... 14.1 1.4 5.4 4.1 1.6 1.6 11.7

 Not at All ..................................... 0.9 Q 0.2 Q 0.3 Q 23.4

 No Window/Wall Units .................. 81.9 7.0 20.7 16.5 17.6 20.1 6.7

See footnotes at end of table.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC6-1a. Usage Indicators by Climate Zone, 

 Million U.S. Households, 2001 (Continued)

Usage Indicators

RSE Column Factor:

Total

Climate Zone1

RSE

Row

Factors

Fewer than 2,000 CDD and --

2,000 CDD

or More

and Fewer

than

4,000 HDD

More than

7,000 HDD

5,500 to

7,000 HDD

4,000 to

5,499 HDD

Fewer than

4,000 HDD

0.4 1.8 1.1 1.1 1.2 1.0

Hot Water

Dishwasher Use Each Week

 Use a Dishwasher ......................... 56.7 4.7 14.7 12.3 11.2 13.7 7.4

 Less Than Once a Week ............ 9.4 0.7 1.9 2.1 2.2 2.5 12.0

 Once Each Week ........................ 7.5 0.7 2.0 1.5 1.7 1.5 15.3

 2 to 3 Times ................................ 17.8 1.4 4.8 3.9 3.5 4.2 10.6

 4 to 6 Times ................................ 11.7 1.0 2.8 2.6 2.2 3.1 12.7

 At Least Once Each Day ............ 10.4 0.9 3.3 2.1 1.6 2.5 12.6

 No Dishwasher ............................. 50.3 4.5 13.9 11.7 9.8 10.4 9.1

Loads of Laundry Washed Each

Week

 Use a Clothes Washer .................. 84.1 7.9 22.6 17.9 16.3 19.4 7.4

 1 Load or Less ............................ 6.8 0.7 1.5 1.6 1.5 1.4 12.9

 2 to 9 Loads ................................ 65.1 6.0 17.4 13.9 12.7 15.1 7.8

 10 to 15 Loads ............................ 9.6 1.0 2.8 2.0 1.7 2.2 12.7

 More than 15 Loads .................... 2.7 0.3 0.9 0.5 0.5 0.6 23.4

 No Washing Machine .................... 22.9 1.4 6.1 6.1 4.7 4.7 10.2

Water Temperature Setting for

Clothes Washer

 Wash Cycle

 Hot .............................................. 6.2 0.3 2.0 1.2 1.1 1.5 16.4

 Warm .......................................... 49.7 5.0 14.4 11.0 9.3 10.0 8.4

 Cold ............................................ 28.2 2.6 6.2 5.7 5.9 7.9 9.9

 Rinse Cycle

 Hot .............................................. 1.4 Q 0.4 0.3 0.4 0.3 34.1

 Warm .......................................... 16.6 1.6 4.9 3.5 3.0 3.6 12.3

 Cold ............................................ 66.1 6.2 17.3 14.1 12.9 15.5 8.3

 No Washing Machine .................... 22.9 1.4 6.1 6.1 4.7 4.7 10.2

Clothes Dryer

 Use a Clothes Dryer ..................... 78.8 7.6 21.5 16.7 15.0 18.0 7.7

 Every Time Clothes are Washed 63.5 5.2 17.4 13.2 12.3 15.3 8.1

 Some, but not All, Loads ............. 12.7 1.8 3.5 2.8 2.2 2.2 11.8

 Used Infrequently ........................ 2.7 0.6 0.6 0.6 0.4 0.4 21.0

 No Clothes Dryer .......................... 28.2 1.6 7.1 7.4 6.0 6.1 9.2

Cooking

Number of Hot Meals Cooked in

the Home

 3 or More Times a Day ................. 7.5 0.6 2.3 1.1 1.7 1.8 14.5

 2 Times a Day ............................... 26.8 2.3 6.8 6.2 5.4 6.0 9.1

 Once a Day ................................... 43.3 4.0 12.9 9.7 7.9 8.9 8.9

 A Few Times Each Week ............. 21.7 1.6 5.2 5.0 4.4 5.5 10.4

 About Once a Week ...................... 4.0 0.4 0.8 0.9 0.9 1.1 18.2

 Less Than Once a Week .............. 2.4 0.2 0.4 0.8 0.5 0.5 22.1

 No Hot Meals Cooked ................... 1.2 Q 0.3 0.3 Q Q 48.1

Conventional Oven

 Use a Conventional Oven ............. 99.4 8.9 27.6 22.6 19.0 21.3 7.9

 More Than Once a Day .............. 8.6 0.5 2.5 1.7 1.8 2.0 14.9

 Once a Day ................................. 17.4 1.8 4.4 4.2 3.7 3.4 11.0

 Between Once a Day and

 Once a Week .............................. 33.1 3.3 9.9 7.5 5.9 6.6 9.5

 Once a Week .............................. 15.6 1.3 4.8 3.3 2.3 3.9 10.4

 Less Than Once a Week ............ 24.6 2.0 6.0 5.9 5.3 5.5 10.9

 Do Not Use ................................... 7.6 0.3 1.1 1.4 2.0 2.7 18.3

See footnotes at end of table.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC6-1a. Usage Indicators by Climate Zone, 

 Million U.S. Households, 2001 (Continued)

Usage Indicators

RSE Column Factor:

Total

Climate Zone1

RSE

Row

Factors

Fewer than 2,000 CDD and --

2,000 CDD

or More

and Fewer

than

4,000 HDD

More than

7,000 HDD

5,500 to

7,000 HDD

4,000 to

5,499 HDD

Fewer than

4,000 HDD

0.4 1.8 1.1 1.1 1.2 1.0

Microwave Oven

 Use a Microwave Oven ................. 92.1 8.8 24.8 20.0 17.9 20.7 7.1

 Most or All ................................... 8.2 0.7 1.9 1.7 1.7 2.1 13.3

 About Half ................................... 19.3 1.9 5.9 4.0 3.7 3.9 10.9

 Some or Very Little ..................... 22.4 2.0 5.9 5.0 4.6 4.9 10.3

 For Defrosting, Reheating,

 or Snacks .................................... 42.2 4.1 11.2 9.3 7.8 9.8 9.7

 No Microwave Oven ..................... 14.8 0.5 3.8 4.0 3.1 3.4 13.0

Electric Coffee Maker

 Use an Electric Coffee Maker ....... 65.5 6.7 18.0 14.7 12.1 13.9 7.9

 Three or More Times a Day ........ 2.4 0.4 0.6 0.6 0.2 0.5 21.2

 Two Times a Day ........................ 5.9 0.5 1.9 1.1 1.2 1.2 16.4

 Once a Day ................................. 33.6 3.0 9.2 7.5 6.1 7.8 9.4

 A Few Times Each Week ........... 9.4 1.2 2.3 2.2 2.0 1.8 11.8

 About Once a Week .................... 5.2 0.7 1.6 1.1 0.8 1.0 16.4

 Less than Once a Week ............. 9.0 0.9 2.3 2.2 1.9 1.6 12.0

 No Electric Coffee Maker .............. 41.5 2.5 10.6 9.3 8.9 10.2 8.1

Time Electric Coffee Maker is

Left On

 Turned Off Right Away ................. 18.8 1.7 5.5 4.6 3.7 3.3 10.4

 Less than 15 Minutes .................... 10.0 0.7 2.4 2.8 2.2 2.0 13.0

 15 Minutes to 1 Hour .................... 24.6 2.7 6.5 5.1 4.1 6.2 10.9

 More than 1 Hour .......................... 12.1 1.6 3.7 2.3 2.2 2.4 13.0

Electric Toaster

 Use a Electric Toaster .................. 36.1 1.9 8.2 9.1 7.6 9.3 8.8

 Three or More Times a Day ........ 1.0 Q 0.2 0.4 0.2 0.2 33.6

 Two Times a Day ........................ 2.7 Q 0.7 0.6 0.7 0.6 22.3

 Once a Day ................................. 8.2 0.6 1.7 2.1 1.8 2.1 13.4

 A Few Times Each Week ........... 11.9 0.5 2.8 3.1 2.3 3.2 12.0

 About Once a Week .................... 4.3 0.3 1.0 0.9 0.9 1.1 16.1

 Less than Once a Week ............. 7.9 0.5 1.7 2.0 1.6 2.1 13.4

 No Electric Toaster ....................... 70.9 7.3 20.5 15.0 13.4 14.7 7.6

Lights

Indoor Lights Turned On:

 1 to 4 Hours per Day

 None ........................................... 10.2 1.0 3.1 2.3 1.8 2.2 15.4

 1 .................................................. 30.1 2.5 8.2 7.2 5.3 7.0 9.5

 2 .................................................. 30.7 2.8 8.1 6.5 6.9 6.4 9.0

 3 .................................................. 16.6 1.3 4.6 3.6 3.1 4.0 11.9

 4 .................................................. 10.5 1.0 2.6 2.5 2.1 2.3 14.5

 5 or More .................................... 8.8 0.8 2.0 2.0 1.9 2.1 15.1

 Between 4 and 12 Hours per Day

 None ........................................... 30.2 4.3 9.3 5.1 5.1 6.6 11.0

 1 .................................................. 25.2 1.7 6.0 5.6 5.5 6.4 9.9

 2 .................................................. 25.5 1.4 6.6 6.6 5.7 5.1 8.2

 3 .................................................. 12.7 0.9 3.4 3.3 2.1 2.9 12.2

 4 .................................................. 7.2 0.4 1.9 1.7 1.5 1.7 14.0

 5 or More .................................... 6.2 0.4 1.5 1.8 1.1 1.4 15.2

 More then 12 Hours per Day

 None ........................................... 81.1 8.1 22.8 17.5 15.8 16.9 7.4

 1 .................................................. 14.4 0.7 3.7 3.6 2.3 4.0 10.5

 2 .................................................. 6.8 0.2 1.5 1.4 1.7 2.0 16.4

 3 .................................................. 2.4 Q 0.3 0.8 0.7 0.4 32.2

 4 .................................................. 1.3 Q Q 0.4 0.3 0.4 27.6

 5 or More .................................... 1.1 Q Q 0.4 Q 0.3 25.0

See footnotes at end of table.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC6-1a. Usage Indicators by Climate Zone, 

 Million U.S. Households, 2001 (Continued)

Usage Indicators

RSE Column Factor:

Total

Climate Zone1

RSE

Row

Factors

Fewer than 2,000 CDD and --

2,000 CDD

or More

and Fewer

than

4,000 HDD

More than

7,000 HDD

5,500 to

7,000 HDD

4,000 to

5,499 HDD

Fewer than

4,000 HDD

0.4 1.8 1.1 1.1 1.2 1.0

Outdoor Lights on All Night

 Used ............................................. 24.5 1.3 6.4 5.2 4.7 6.9 11.1

 Not Used ...................................... 82.5 8.0 22.2 18.8 16.3 17.2 7.0

Gas Fireplace

Use a Gas Fireplace During Winter

Months ............................................ 3.7 Q 1.2 0.6 1.1 0.6 18.5

 Most Days ..................................... 1.3 Q 0.5 0.3 0.4 Q 35.2

 Almost Once a Week .................... 1.1 Q 0.4 Q 0.3 Q 35.2

 Less Than 4 Times a Month ......... 1.2 Q 0.3 Q 0.4 Q 30.2

Use a Personal Computer ............ 60.0 5.7 16.7 13.1 12.1 12.6 7.4

Hours PC Turned On Each Week

 Less Than 2 Hours ....................... 10.3 1.0 2.7 2.2 1.9 2.6 13.2

 2 to 15 Hours ................................ 26.3 2.3 7.5 5.7 5.5 5.3 8.9

 16 to 40 Hours .............................. 12.2 1.2 3.3 2.9 2.5 2.3 12.4

 More than 40 Hours ...................... 5.7 0.7 1.7 1.1 1.0 1.2 15.6

 On All The Time ............................ 5.6 0.5 1.5 1.2 1.1 1.2 17.2

Use of PCs Turned on 16 Hours

a Week or More

 Personal Use Only ........................ 14.0 1.6 4.2 2.7 2.6 2.8 12.8

 Business Use Only ....................... 2.1 0.3 0.4 0.5 0.5 0.4 20.8

 Both Personal and Business ......... 7.3 0.5 1.9 1.9 1.5 1.5 13.7

Business Use of PCs Turned on

16 Hours a Week or More

 Use to Telecommute ..................... 3.6 0.2 1.0 0.9 0.5 0.9 19.4

 Other Business Use ...................... 5.8 0.5 1.3 1.5 1.5 1.0 14.9

Battery Operated

Appliances/Tools

 Use Battery Operated Appliances/

 Tools ............................................. 47.7 5.0 13.9 10.3 8.6 9.9 8.9

 How Maintained When

 Not in Use

 Plugged in All The Time .............. 10.8 1.0 3.0 2.2 2.1 2.5 13.8

 Recharged As Needed ............... 33.8 3.6 9.9 7.4 5.9 6.9 9.5

 Both Ways are Used ................... 3.1 0.3 1.0 0.7 0.6 0.5 19.0

 Don’t Use Any ............................... 59.3 4.2 14.7 13.7 12.4 14.2 7.9

1 One of five climatically distinct areas, determined according to the 30-year average (1961-1990) of the annual heating and cooling degree-days. For this

report, the heating or cooling degree-days are a measure of how cold or how hot a location is over a period of one year, relative to a base temperature of 65

degrees Fahrenheit. A household is assigned to a climate zone according to the 30-year average annual degree-days for an appropriate nearby weather station. 2 The 1.0 million households that do not heat their homes are not included in these categories.

Q = Data withheld either because the Relative Standard Error (RSE) was greater than 50 percent or fewer than 10 households were sampled.

Notes: • To obtain the RSE percentage for any table cell, multiply the corresponding column and row factors. • Because of rounding, data may not sum to totals.

 • See "Glossary" for definition of terms used in this report. • All temperatures listed are in degrees Fahrenheit.

Source: Energy Information Administration, Office of Energy Markets and End Use, Forms EIA-457 A, B, C of the 2001 Residential Energy Consumption Survey.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC6-2a. Usage Indicators by Year of Construction, 

 Million U.S. Households, 2001

Usage Indicators

RSE Column Factor:

Total

Year of Construction

RSE

Row

Factors

1990

 to

20011

1980

to

1989

1970

to

1979

1960

to

1969

1950

to

1959

1949

or

Before

0.4 1.5 1.1 1.1 1.2 1.1 0.9

Total ............................................... 107.0 15.5 18.2 18.8 13.8 14.2 26.6 4.2

Weekday Home Activities

 Home Used for Business

 Yes .............................................. 7.6 1.5 1.0 1.5 0.8 1.0 1.8 13.6

 No ............................................... 99.4 13.9 17.3 17.3 12.9 13.2 24.8 4.3

 Energy-Intensive Activity

 Yes .............................................. 1.7 0.3 0.3 0.2 0.3 0.2 0.4 24.5

 No ............................................... 105.2 15.1 18.0 18.5 13.5 13.9 26.2 4.3

 Someone Home All Day

 Yes .............................................. 53.0 7.6 8.4 9.1 7.1 7.5 13.2 5.6

 No ............................................... 53.9 7.8 9.7 9.6 6.6 6.7 13.4 5.1

Heating

 Heat Home .................................... 106.0 15.4 18.2 18.6 13.6 13.9 26.4 4.2

 Do Not Heat Home ....................... 1.0 Q Q Q 0.2 0.3 Q 23.7

 No Heating Equipment ................ 0.5 Q Q Q 0.2 Q Q 32.0

 Have Equipment But

 Do Not Use It .............................. 0.4 Q Q Q Q Q Q 43.6

Adequacy of Insulation

 Well Insulated ............................... 42.6 9.8 8.6 7.2 5.2 4.4 7.4 6.0

 Adequately Insulated .................... 43.1 4.9 7.5 7.9 5.8 6.3 10.7 6.0

 Poorly Insulated ............................ 19.4 0.6 2.0 3.3 2.6 3.2 7.6 9.6

 No Insulation ................................. 0.9 Q Q Q Q Q 0.5 30.3

 Don’t Know ................................... 0.9 Q Q Q Q Q 0.4 33.9

Occurrences of Drafts During

Winter

 Never ............................................ 5.9 0.4 0.7 1.1 0.7 0.6 2.4 17.0

 Some of the Time ......................... 6.4 0.3 0.7 1.3 0.8 1.0 2.4 16.1

 Most of the ................................... 34.6 4.1 5.4 5.3 4.3 5.3 10.2 6.9

 All of the Time ............................... 55.3 10.2 10.4 10.2 7.3 6.7 10.5 5.5

 Don’t Know ................................... 4.7 0.5 1.1 0.9 0.6 0.6 1.0 16.7

 Thermostat

 Heat Home .................................. 106.0 15.4 18.2 18.6 13.6 13.9 26.4 4.2

 Thermostat Available During

 Heating Season ........................ 91.5 15.0 16.4 16.6 11.6 11.7 20.0 4.8

 Programmable2

 Yes ........................................ 25.1 5.2 4.3 3.8 3.2 3.5 5.1 9.3

 No ......................................... 66.4 9.8 12.1 12.9 8.4 8.3 14.9 5.3

 No Thermostat .......................... 14.5 0.4 1.8 1.9 2.0 2.1 6.3 11.5

 Do Not Heat Home ..................... 1.0 Q Q Q 0.2 0.3 Q 23.7

Lower Winter Temperature

Settings2

 Daytime When No One is at Home

 Yes .............................................. 47.2 7.3 8.1 8.6 6.3 6.3 10.7 6.0

 No ............................................... 48.5 7.1 8.4 7.9 6.0 6.1 13.0 5.8

 Unknown ..................................... 10.3 1.1 1.7 2.1 1.3 1.5 2.6 11.7

 During Sleeping Hours

 Yes .............................................. 45.7 6.7 7.9 7.8 6.0 6.5 10.9 6.1

 No ............................................... 51.1 7.9 8.8 8.9 6.4 6.1 13.0 5.6

 Unknown ..................................... 9.2 0.9 1.5 1.9 1.2 1.3 2.4 12.2

See footnotes at end of table.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC6-2a. Usage Indicators by Year of Construction, 

 Million U.S. Households, 2001 (Continued)

Usage Indicators

RSE Column Factor:

Total

Year of Construction

RSE

Row

Factors

1990

 to

20011

1980

to

1989

1970

to

1979

1960

to

1969

1950

to

1959

1949

or

Before

0.4 1.5 1.1 1.1 1.2 1.1 0.9

Daytime Winter Temperature

When Someone is at Home2

 Heat Turned On ............................ 96.8 14.6 16.6 16.7 12.3 12.6 24.0 4.4

 63 Degrees or Less .................... 3.9 0.4 0.5 0.7 0.6 0.6 1.1 16.6

 64 to 66 Degrees ....................... 8.4 1.0 1.3 1.1 1.1 1.2 2.7 13.3

 67 to 69 Degrees ........................ 23.6 4.1 3.4 4.0 3.0 3.2 5.9 8.1

 70 Degrees ................................. 25.7 4.0 4.3 4.4 3.2 3.2 6.5 7.5

 71 to 73 Degrees ........................ 16.5 2.7 3.1 2.8 2.2 2.1 3.6 9.3

 74 Degrees or More .................... 18.6 2.4 4.0 3.7 2.1 2.3 4.1 9.0

 Heat Turned Off ............................ 2.0 Q 0.3 0.7 0.2 0.3 0.3 24.5

 Unknown/No Answer .................... 7.2 0.6 1.3 1.2 1.0 1.0 2.1 14.5

Daytime Winter Temperature

When No One is at Home2

 Heat Turned On ............................ 87.6 13.3 15.0 14.7 11.0 11.4 22.2 4.3

 63 Degrees or Less .................... 17.7 2.2 2.9 3.0 2.2 2.4 5.0 9.9

 64 to 66 Degrees ....................... 17.2 3.0 2.2 2.8 2.3 2.4 4.4 9.7

 67 to 69 Degrees ........................ 19.1 3.2 3.3 3.1 2.4 2.6 4.5 8.9

 70 Degrees ................................. 15.1 2.2 2.4 2.7 1.9 1.8 4.1 9.8

 71 to 73 Degrees ........................ 8.7 1.4 1.7 1.2 1.2 1.2 2.1 11.5

 74 Degrees or More .................... 9.8 1.4 2.6 1.7 0.9 1.1 2.1 12.8

 Heat Turned Off ............................ 10.5 1.2 1.8 2.6 1.6 1.5 1.8 13.4

 Unknown/No Answer .................... 8.0 0.8 1.4 1.4 1.0 1.1 2.4 13.5

Winter Temperature During

Sleeping Hours2

 Heat Turned On ............................ 91.8 13.8 15.9 15.6 11.6 12.0 23.0 4.5

 63 Degrees or Less .................... 15.4 1.8 2.4 2.5 2.0 2.3 4.5 9.8

 64 to 66 Degrees ....................... 17.4 2.5 2.8 2.7 2.3 2.5 4.6 8.8

 67 to 69 Degrees ........................ 21.0 3.7 3.4 3.4 3.0 2.8 4.7 7.8

 70 Degrees ................................. 17.4 2.8 2.6 3.1 1.8 2.3 4.8 8.9

 71 to 73 Degrees ........................ 9.5 1.4 1.9 1.7 1.4 1.0 2.2 12.0

 74 Degrees or More .................... 11.1 1.7 2.9 2.2 1.0 1.1 2.2 12.0

 Heat Turned Off ............................ 7.1 1.0 1.0 1.8 1.1 1.0 1.3 15.5

 Unknown/No Answer .................... 7.1 0.6 1.3 1.2 0.9 1.0 2.1 14.5

Air-Conditioning

Central Air-Conditioning

 Use a Central System ................... 58.6 12.8 13.9 11.3 7.2 6.9 6.4 5.8

 All Summer ................................. 28.4 6.3 7.5 5.8 3.3 2.8 2.7 8.3

 Quite a Bit ................................... 12.1 2.8 2.7 2.2 1.6 1.4 1.5 11.4

 Only a Few Times ....................... 16.8 3.5 3.5 3.0 2.1 2.5 2.2 10.0

 Not at All ..................................... 1.4 Q 0.2 0.4 Q Q Q 26.5

 No Central System ........................ 48.4 2.6 4.3 7.4 6.6 7.3 20.2 6.4

Window/Wall Air-Conditioning

 Use Window/Wall Units ................ 25.1 0.8 2.3 3.5 3.3 3.8 11.3 8.5

 All Summer ................................. 4.9 0.2 0.4 0.7 0.7 0.7 2.2 19.3

 Quite a Bit ................................... 5.2 Q 0.5 0.8 0.7 0.6 2.5 17.2

 Only a Few Times ....................... 14.1 0.4 1.3 1.8 1.8 2.4 6.3 10.4

 Not at All ..................................... 0.9 Q Q Q Q Q 0.4 37.3

 No Window/Wall Units .................. 81.9 14.6 16.0 15.2 10.5 10.4 15.3 4.3

See footnotes at end of table.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC6-2a. Usage Indicators by Year of Construction, 

 Million U.S. Households, 2001 (Continued)

Usage Indicators

RSE Column Factor:

Total

Year of Construction

RSE

Row

Factors

1990

 to

20011

1980

to

1989

1970

to

1979

1960

to

1969

1950

to

1959

1949

or

Before

0.4 1.5 1.1 1.1 1.2 1.1 0.9

Hot Water

Dishwasher Use Each Week

 Use a Dishwasher ......................... 56.7 12.3 12.8 10.4 7.0 6.2 8.1 5.7

 Less Than Once a Week ............ 9.4 1.5 2.1 2.0 1.5 1.0 1.4 12.3

 Once Each Week ........................ 7.5 1.3 1.5 1.5 1.1 0.9 1.2 14.2

 2 to 3 Times ................................ 17.8 3.6 4.3 3.2 2.1 2.5 2.1 9.8

 4 to 6 Times ................................ 11.7 3.2 2.7 1.7 1.5 0.9 1.7 11.5

 At Least Once Each Day ............ 10.4 2.8 2.2 2.0 0.9 0.9 1.7 11.5

 No Dishwasher ............................. 50.3 3.2 5.5 8.4 6.8 8.0 18.5 5.9

Loads of Laundry Washed Each

Week

 Use a Clothes Washer .................. 84.1 13.8 14.8 13.9 10.1 11.8 19.7 4.5

 1 Load or Less ............................ 6.8 0.4 1.1 1.2 1.0 1.0 2.1 13.3

 2 to 9 Loads ................................ 65.1 11.1 11.3 10.7 7.9 9.5 14.7 4.9

 10 to 15 Loads ............................ 9.6 2.0 1.9 1.6 0.9 1.1 2.1 11.0

 More than 15 Loads .................... 2.7 0.4 0.5 0.5 0.3 0.2 0.8 22.1

 No Washing Machine .................... 22.9 1.6 3.5 4.9 3.7 2.3 6.9 9.5

Water Temperature Setting for

Clothes Washer

 Wash Cycle

 Hot .............................................. 6.2 0.9 0.9 1.1 0.8 0.9 1.6 13.9

 Warm .......................................... 49.7 8.0 8.6 8.0 5.8 7.3 12.0 5.9

 Cold ............................................ 28.2 5.0 5.3 4.7 3.5 3.6 6.1 7.2

 Rinse Cycle

 Hot .............................................. 1.4 0.3 Q 0.3 Q Q 0.3 30.4

 Warm .......................................... 16.6 2.7 2.7 2.8 1.9 2.8 3.9 10.0

 Cold ............................................ 66.1 10.9 12.0 10.8 8.0 8.8 15.5 5.1

 No Washing Machine .................... 22.9 1.6 3.5 4.9 3.7 2.3 6.9 9.5

Clothes Dryer

 Use a Clothes Dryer ..................... 78.8 13.6 14.2 13.0 9.5 10.7 17.9 4.7

 Every Time Clothes are Washed 63.5 11.4 12.0 10.6 6.9 8.6 13.9 5.1

 Some, but not All, Loads ............. 12.7 1.9 1.9 2.0 2.0 1.7 3.2 9.8

 Used Infrequently ........................ 2.7 0.2 0.2 0.4 0.5 0.4 0.8 21.1

 No Clothes Dryer .......................... 28.2 1.8 4.1 5.8 4.3 3.5 8.7 8.2

Cooking

Number of Hot Meals Cooked in

the Home

 3 or More Times a Day ................. 7.5 1.3 1.0 1.3 1.0 1.0 1.9 13.4

 2 Times a Day ............................... 26.8 4.4 4.1 4.5 3.4 3.7 6.7 7.1

 Once a Day ................................... 43.3 6.6 7.5 7.4 6.0 5.4 10.4 5.8

 A Few Times Each Week ............. 21.7 2.4 4.3 4.2 2.5 3.1 5.2 8.4

 About Once a Week ...................... 4.0 0.5 0.6 0.9 0.4 0.6 1.2 18.3

 Less Than Once a Week .............. 2.4 Q 0.4 0.4 0.3 0.4 0.8 23.1

 No Hot Meals Cooked ................... 1.2 Q 0.4 Q Q Q 0.4 39.0

Conventional Oven

 Use a Conventional Oven ............. 99.4 13.7 16.8 17.4 12.7 13.4 25.3 4.3

 More Than Once a Day .............. 8.6 1.5 1.3 1.5 1.1 1.1 2.1 13.6

 Once a Day ................................. 17.4 2.7 3.2 2.9 2.4 2.2 4.0 8.5

 Between Once a Day and

 Once a Week .............................. 33.1 5.1 5.4 6.0 3.9 4.8 7.9 7.0

 Once a Week .............................. 15.6 2.2 2.5 3.0 2.3 1.7 3.9 9.6

 Less Than Once a Week ............ 24.6 2.2 4.4 4.0 3.1 3.6 7.3 8.4

 Do Not Use ................................... 7.6 1.8 1.4 1.3 1.1 0.8 1.3 15.4

See footnotes at end of table.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC6-2a. Usage Indicators by Year of Construction, 

 Million U.S. Households, 2001 (Continued)

Usage Indicators

RSE Column Factor:

Total

Year of Construction

RSE

Row

Factors

1990

 to

20011

1980

to

1989

1970

to

1979

1960

to

1969

1950

to

1959

1949

or

Before

0.4 1.5 1.1 1.1 1.2 1.1 0.9

Microwave Oven

 Use a Microwave Oven ................. 92.1 14.4 15.9 16.5 11.7 12.2 21.4 4.2

 Most or All ................................... 8.2 1.0 1.5 1.5 1.3 1.2 1.8 13.2

 About Half ................................... 19.3 3.1 3.6 3.1 2.7 2.4 4.4 8.8

 Some or Very Little ..................... 22.4 4.0 4.0 4.0 2.6 2.8 5.1 8.2

 For Defrosting, Reheating,

 or Snacks .................................... 42.2 6.3 6.9 7.9 5.3 5.7 10.1 6.1

 No Microwave Oven ..................... 14.8 1.0 2.3 2.3 2.0 2.0 5.2 11.0

Electric Coffee Maker

 Use an Electric Coffee Maker ....... 65.5 10.6 11.2 11.0 8.4 8.8 15.5 4.9

 Three or More Times a Day ........ 2.4 0.5 0.2 0.3 0.3 0.4 0.7 22.8

 Two Times a Day ........................ 5.9 0.8 0.8 1.0 0.8 0.8 1.8 14.0

 Once a Day ................................. 33.6 5.9 5.8 5.5 4.5 4.4 7.5 6.4

 A Few Times Each Week ........... 9.4 1.5 1.7 1.7 1.1 1.3 2.1 11.3

 About Once a Week .................... 5.2 0.8 1.0 0.9 0.6 0.7 1.1 16.9

 Less than Once a Week ............. 9.0 1.1 1.6 1.6 1.2 1.2 2.3 11.8

 No Electric Coffee Maker .............. 41.5 4.9 7.1 7.8 5.3 5.3 11.1 6.0

Time Electric Coffee Maker is

Left On

 Turned Off Right Away ................. 18.8 2.3 3.4 2.9 2.7 2.5 5.0 8.5

 Less than 15 Minutes .................... 10.0 1.5 2.0 1.6 1.2 1.5 2.2 10.7

 15 Minutes to 1 Hour .................... 24.6 4.8 3.8 4.2 3.0 3.4 5.3 8.1

 More than 1 Hour .......................... 12.1 1.9 2.0 2.2 1.6 1.4 3.0 10.8

Electric Toaster

 Use a Electric Toaster .................. 36.1 5.3 7.0 6.1 4.9 4.4 8.4 6.9

 Three or More Times a Day ........ 1.0 Q Q Q Q Q 0.4 34.0

 Two Times a Day ........................ 2.7 0.5 0.5 0.4 0.3 0.4 0.6 22.5

 Once a Day ................................. 8.2 1.0 1.7 1.3 1.3 1.0 2.0 13.4

 A Few Times Each Week ........... 11.9 1.9 2.2 2.2 1.6 1.5 2.6 10.9

 About Once a Week .................... 4.3 0.7 0.7 0.8 0.7 0.5 0.9 16.3

 Less than Once a Week ............. 7.9 1.2 1.7 1.2 1.1 0.9 1.9 12.3

 No Electric Toaster ....................... 70.9 10.1 11.3 12.7 8.8 9.8 18.2 4.6

Lights

Indoor Lights Turned On:

 1 to 4 Hours per Day

 None ........................................... 10.2 1.1 1.6 1.9 1.2 1.4 3.1 12.6

 1 .................................................. 30.1 3.6 4.9 4.9 4.3 4.0 8.4 7.3

 2 .................................................. 30.7 4.4 5.5 5.6 3.6 3.9 7.7 7.7

 3 .................................................. 16.6 2.8 2.9 3.1 2.2 2.4 3.1 9.2

 4 .................................................. 10.5 1.5 1.7 1.9 1.3 1.5 2.5 12.0

 5 or More .................................... 8.8 2.1 1.7 1.2 1.1 1.0 1.8 13.9

 Between 4 and 12 Hours per Day

 None ........................................... 30.2 4.1 4.7 5.1 3.7 4.0 8.6 7.7

 1 .................................................. 25.2 2.9 4.4 4.5 3.6 3.5 6.2 7.7

 2 .................................................. 25.5 3.7 4.2 5.1 3.4 3.3 5.7 7.7

 3 .................................................. 12.7 1.7 2.5 2.3 1.5 1.9 2.8 10.7

 4 .................................................. 7.2 1.2 1.3 1.1 0.8 0.8 1.9 13.6

 5 or More .................................... 6.2 1.8 1.1 0.6 0.8 0.6 1.4 15.9

 More then 12 Hours per Day

 None ........................................... 81.1 11.9 14.0 13.9 10.3 10.8 20.2 4.5

 1 .................................................. 14.4 2.0 2.0 3.0 1.9 2.0 3.6 10.4

 2 .................................................. 6.8 0.8 1.2 1.0 1.1 0.9 1.8 15.1

 3 .................................................. 2.4 0.4 0.5 0.5 Q 0.3 0.5 26.1

 4 .................................................. 1.3 Q 0.2 Q Q Q 0.4 31.7

 5 or More .................................... 1.1 Q 0.3 Q Q Q Q 29.3

See footnotes at end of table.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC6-2a. Usage Indicators by Year of Construction, 

 Million U.S. Households, 2001 (Continued)

Usage Indicators

RSE Column Factor:

Total

Year of Construction

RSE

Row

Factors

1990

 to

20011

1980

to

1989

1970

to

1979

1960

to

1969

1950

to

1959

1949

or

Before

0.4 1.5 1.1 1.1 1.2 1.1 0.9

Outdoor Lights on All Night

 Used ............................................. 24.5 3.4 4.7 4.7 3.2 3.6 4.9 8.4

 Not Used ...................................... 82.5 12.1 13.5 14.1 10.6 10.5 21.7 4.5

Gas Fireplace

Use a Gas Fireplace During Winter

Months ............................................ 3.7 1.4 0.7 0.6 0.3 0.3 0.5 19.5

 Most Days ..................................... 1.3 0.4 0.2 0.2 Q Q 0.3 30.8

 Almost Once a Week .................... 1.1 0.6 Q Q Q Q Q 29.0

 Less Than 4 Times a Month ......... 1.2 0.4 0.3 Q Q Q Q 27.3

Use a Personal Computer ............ 60.0 11.0 11.6 10.3 7.2 7.8 12.0 5.3

Hours PC Turned On Each Week

 Less Than 2 Hours ....................... 10.3 1.8 1.8 2.1 1.2 1.5 1.9 12.0

 2 to 15 Hours ................................ 26.3 4.6 5.1 4.4 3.3 3.4 5.5 7.5

 16 to 40 Hours .............................. 12.2 2.7 2.7 1.6 1.5 1.5 2.3 11.0

 More than 40 Hours ...................... 5.7 0.8 1.1 1.2 0.7 0.8 1.1 15.4

 On All The Time ............................ 5.6 1.1 0.9 1.0 0.6 0.6 1.3 16.3

Use of PCs Turned on 16 Hours

a Week or More

 Personal Use Only ........................ 14.0 2.5 2.7 2.4 1.7 2.0 2.7 9.7

 Business Use Only ....................... 2.1 0.5 0.4 0.3 0.3 0.2 0.4 23.6

 Both Personal and Business ......... 7.3 1.6 1.7 1.1 0.7 0.7 1.5 14.0

Business Use of PCs Turned on

16 Hours a Week or More

 Use to Telecommute ..................... 3.6 0.9 0.8 0.5 0.4 0.2 0.7 22.1

 Other Business Use ...................... 5.8 1.2 1.3 0.9 0.6 0.7 1.2 15.0

Battery Operated

Appliances/Tools

 Use Battery Operated Appliances/

 Tools ............................................. 47.7 8.1 8.3 8.2 6.1 6.5 10.5 6.0

 How Maintained When

 Not in Use

 Plugged in All The Time .............. 10.8 1.8 2.2 1.8 1.4 1.7 1.9 12.3

 Recharged As Needed ............... 33.8 5.7 5.7 5.8 4.4 4.4 7.8 6.8

 Both Ways are Used ................... 3.1 0.7 0.3 0.6 0.2 0.4 0.8 20.7

 Don’t Use Any ............................... 59.3 7.3 10.0 10.6 7.7 7.6 16.1 5.3

1 New construction for 2001 includes only those housing units built and occupied between January and the April-August period when the household interviews were

conducted. 2 The 1.0 million households that do not heat their homes are not included in these categories.

Q = Data withheld either because the Relative Standard Error (RSE) was greater than 50 percent or fewer than 10 households were sampled.

Notes: • To obtain the RSE percentage for any table cell, multiply the corresponding column and row factors. • Because of rounding, data may not sum to totals. • See

"Glossary" for definition of terms used in this report. • All temperatures listed are in degrees Fahrenheit.

Source: Energy Information Administration, Office of Energy Markets and End Use, Forms EIA-457 A, B, C of the 2001 Residential Energy Consumption Survey.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC6-3a. Usage Indicators by Household Income, 

 Million U.S. Households, 2001

Usage Indicators

RSE Column Factor:

Total

2001 Household Income

Below Poverty

Line

Eligible

for

Federal

Assistance1

RSE

Row

Factors

Less

than

$14,999

$15,000

to

$29,999

$30,000

to

$49,999

$50,000

or

More

0.5 1.4 1.1 1.0 0.9 1.5 1.0

Total ............................................... 107.0 18.7 22.9 27.1 38.3 15.0 33.8 3.2

Weekday Home Activities

 Home Used for Business

 Yes .............................................. 7.6 0.4 1.1 1.7 4.5 0.3 1.2 14.9

 No ............................................... 99.4 18.3 21.8 25.4 33.9 14.6 32.6 3.3

 Energy-Intensive Activity

 Yes .............................................. 1.7 Q 0.3 0.4 0.8 Q 0.4 24.1

 No ............................................... 105.2 18.6 22.6 26.7 37.4 14.8 33.4 3.2

 Someone Home All Day

 Yes .............................................. 53.0 11.6 12.1 12.7 16.7 9.6 20.9 4.1

 No ............................................... 53.9 7.1 10.8 14.4 21.6 5.4 12.8 4.4

Heating

 Heat Home .................................... 106.0 18.4 22.7 26.8 38.1 14.6 33.4 3.3

 Do Not Heat Home ....................... 1.0 0.3 Q 0.3 0.3 0.3 0.4 23.5

 No Heating Equipment ................ 0.5 Q Q Q 0.2 Q Q 38.0

 Have Equipment But

 Do Not Use It .............................. 0.4 Q Q Q Q 0.2 0.3 23.4

Adequacy of Insulation

 Well Insulated ............................... 42.6 7.3 8.1 9.8 17.4 5.4 12.0 5.1

 Adequately Insulated .................... 43.1 6.3 9.4 11.6 15.9 5.0 12.7 5.2

 Poorly Insulated ............................ 19.4 4.6 4.8 5.3 4.7 4.2 8.2 7.3

 No Insulation ................................. 0.9 Q 0.3 0.2 0.2 Q 0.4 26.4

 Don’t Know ................................... 0.9 0.3 0.3 Q Q 0.2 0.5 24.1

Occurrences of Drafts During

Winter

 Never ............................................ 5.9 1.8 1.4 1.9 0.9 1.7 3.1 12.6

 Some of the Time ......................... 6.4 1.3 1.8 1.8 1.5 1.3 2.7 11.8

 Most of the ................................... 34.6 5.5 7.1 9.1 12.9 4.4 10.5 5.6

 All of the Time ............................... 55.3 9.1 11.4 13.1 21.7 6.6 15.5 4.6

 Don’t Know ................................... 4.7 1.0 1.2 1.1 1.4 0.9 1.9 13.9

 Thermostat

 Heat Home .................................. 106.0 18.4 22.7 26.8 38.1 14.6 33.4 3.3

 Thermostat Available During

 Heating Season ........................ 91.5 13.1 19.1 24.1 35.2 10.2 25.6 3.8

 Programmable2

 Yes ........................................ 25.1 2.0 4.0 6.6 12.5 1.6 5.1 9.0

 No ......................................... 66.4 11.1 15.1 17.5 22.7 8.6 20.5 4.4

 No Thermostat .......................... 14.5 5.3 3.7 2.7 2.8 4.4 7.8 8.3

 Do Not Heat Home ..................... 1.0 0.3 Q 0.3 0.3 0.3 0.4 23.5

Lower Winter Temperature

Settings2

 Daytime When No One is at Home

 Yes .............................................. 47.2 7.3 10.2 11.7 18.2 6.1 13.1 5.3

 No ............................................... 48.5 8.0 10.3 12.9 17.3 5.8 15.5 5.1

 Unknown ..................................... 10.3 3.1 2.3 2.3 2.6 2.8 4.7 9.5

 During Sleeping Hours

 Yes .............................................. 45.7 7.1 9.3 11.5 17.8 5.5 12.8 5.4

 No ............................................... 51.1 8.3 11.3 13.5 18.0 6.6 16.1 5.0

 Unknown ..................................... 9.2 3.0 2.1 1.9 2.2 2.6 4.4 10.1

See footnotes at end of table.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC6-3a. Usage Indicators by Household Income, 

 Million U.S. Households, 2001 (Continued)

Usage Indicators

RSE Column Factor:

Total

2001 Household Income

Below Poverty

Line

Eligible

for

Federal

Assistance1

RSE

Row

Factors

Less

than

$14,999

$15,000

to

$29,999

$30,000

to

$49,999

$50,000

or

More

0.5 1.4 1.1 1.0 0.9 1.5 1.0

Daytime Winter Temperature

When Someone is at Home2

 Heat Turned On ............................ 96.8 15.3 20.7 24.9 35.8 12.0 28.9 3.6

 63 Degrees or Less .................... 3.9 0.8 1.0 1.0 1.2 0.8 1.5 14.3

 64 to 66 Degrees ....................... 8.4 1.3 1.8 2.1 3.2 1.1 2.5 11.4

 67 to 69 Degrees ........................ 23.6 2.4 4.5 6.4 10.3 1.4 5.2 7.1

 70 Degrees ................................. 25.7 4.5 5.5 6.8 8.9 3.6 8.5 6.5

 71 to 73 Degrees ........................ 16.5 2.1 3.5 4.0 6.8 1.6 4.1 7.9

 74 Degrees or More .................... 18.6 4.2 4.5 4.6 5.5 3.4 7.2 8.1

 Heat Turned Off ............................ 2.0 0.7 0.3 0.5 0.6 0.7 0.9 18.5

 Unknown/No Answer .................... 7.2 2.4 1.7 1.5 1.7 2.0 3.5 11.6

Daytime Winter Temperature

When No One is at Home2

 Heat Turned On ............................ 87.6 13.5 18.5 22.5 33.1 10.2 25.6 3.5

 63 Degrees or Less .................... 17.7 3.0 4.0 4.3 6.5 2.5 5.1 8.7

 64 to 66 Degrees ....................... 17.2 2.3 3.6 4.4 6.8 1.8 4.6 8.1

 67 to 69 Degrees ........................ 19.1 2.3 3.7 5.0 8.0 1.5 4.7 8.7

 70 Degrees ................................. 15.1 2.8 3.3 3.9 5.2 2.1 5.4 8.8

 71 to 73 Degrees ........................ 8.7 1.2 1.7 2.3 3.5 0.8 2.4 10.7

 74 Degrees or More .................... 9.8 2.0 2.2 2.5 3.1 1.5 3.4 11.6

 Heat Turned Off ............................ 10.5 2.6 2.3 2.6 2.9 2.5 4.1 11.3

 Unknown/No Answer .................... 8.0 2.3 1.9 1.7 2.0 2.0 3.6 10.9

Winter Temperature During

Sleeping Hours2

 Heat Turned On ............................ 91.8 14.5 19.5 23.6 34.1 11.2 27.4 3.7

 63 Degrees or Less .................... 15.4 2.6 3.4 3.9 5.5 1.9 4.6 9.0

 64 to 66 Degrees ....................... 17.4 2.9 3.7 4.5 6.3 2.3 5.2 7.5

 67 to 69 Degrees ........................ 21.0 2.5 4.1 5.3 9.1 1.6 5.1 7.2

 70 Degrees ................................. 17.4 3.0 3.9 4.3 6.2 2.6 6.0 8.2

 71 to 73 Degrees ........................ 9.5 1.1 1.6 2.7 4.0 0.8 2.1 11.2

 74 Degrees or More .................... 11.1 2.4 2.7 2.9 3.1 2.0 4.4 10.2

 Heat Turned Off ............................ 7.1 1.5 1.5 1.8 2.3 1.5 2.5 12.5

 Unknown/No Answer .................... 7.1 2.3 1.7 1.4 1.6 2.0 3.5 11.5

Air-Conditioning

Central Air-Conditioning

 Use a Central System ................... 58.6 6.3 11.3 15.5 25.6 4.7 12.9 5.3

 All Summer ................................. 28.4 3.1 5.0 7.5 12.8 2.5 5.9 8.0

 Quite a Bit ................................... 12.1 1.2 2.1 3.1 5.7 0.7 2.6 10.6

 Only a Few Times ....................... 16.8 1.7 3.6 4.5 6.8 1.2 3.8 9.1

 Not at All ..................................... 1.4 Q 0.6 0.3 0.3 Q 0.6 27.2

 No Central System ........................ 48.4 12.4 11.6 11.6 12.7 10.3 20.9 4.5

Window/Wall Air-Conditioning

 Use Window/Wall Units ................ 25.1 6.2 6.3 6.2 6.4 5.1 10.8 6.0

 All Summer ................................. 4.9 1.5 1.3 0.9 1.2 1.3 2.5 13.4

 Quite a Bit ................................... 5.2 1.1 1.3 1.6 1.2 0.8 1.9 13.1

 Only a Few Times ....................... 14.1 3.4 3.5 3.4 3.8 2.7 6.0 7.2

 Not at All ..................................... 0.9 0.3 Q 0.2 Q 0.3 0.4 28.1

 No Window/Wall Units .................. 81.9 12.5 16.6 20.9 31.9 9.9 23.0 3.5

See footnotes at end of table.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC6-3a. Usage Indicators by Household Income, 

 Million U.S. Households, 2001 (Continued)

Usage Indicators

RSE Column Factor:

Total

2001 Household Income

Below Poverty

Line

Eligible

for

Federal

Assistance1

RSE

Row

Factors

Less

than

$14,999

$15,000

to

$29,999

$30,000

to

$49,999

$50,000

or

More

0.5 1.4 1.1 1.0 0.9 1.5 1.0

Hot Water

Dishwasher Use Each Week

 Use a Dishwasher ......................... 56.7 3.3 9.1 14.9 29.3 2.6 9.0 5.4

 Less Than Once a Week ............ 9.4 0.9 2.1 2.7 3.7 0.4 2.0 11.5

 Once Each Week ........................ 7.5 0.6 2.1 2.1 2.8 0.5 1.6 14.0

 2 to 3 Times ................................ 17.8 0.8 2.5 5.2 9.2 0.5 2.2 10.0

 4 to 6 Times ................................ 11.7 0.6 1.1 2.6 7.3 0.7 1.4 13.2

 At Least Once Each Day ............ 10.4 0.4 1.3 2.4 6.4 0.4 1.9 12.2

 No Dishwasher ............................. 50.3 15.4 13.8 12.2 9.0 12.4 24.8 4.4

Loads of Laundry Washed Each

Week

 Use a Clothes Washer .................. 84.1 10.7 16.4 22.1 34.9 8.3 22.0 3.9

 1 Load or Less ............................ 6.8 1.8 2.0 1.6 1.3 1.1 2.6 11.1

 2 to 9 Loads ................................ 65.1 8.0 12.8 17.3 27.0 6.1 16.2 4.2

 10 to 15 Loads ............................ 9.6 0.8 1.3 2.6 4.9 0.9 2.4 10.8

 More than 15 Loads .................... 2.7 Q 0.3 0.6 1.6 0.2 0.8 19.1

 No Washing Machine .................... 22.9 8.0 6.5 4.9 3.4 6.6 11.8 6.8

Water Temperature Setting for

Clothes Washer

 Wash Cycle

 Hot .............................................. 6.2 1.1 1.6 1.5 2.1 0.8 2.2 12.6

 Warm .......................................... 49.7 6.3 9.1 13.0 21.3 4.7 12.7 5.1

 Cold ............................................ 28.2 3.4 5.7 7.7 11.5 2.8 7.2 6.3

 Rinse Cycle

 Hot .............................................. 1.4 Q 0.4 0.4 0.4 Q 0.6 27.3

 Warm .......................................... 16.6 2.8 3.2 4.0 6.7 1.7 4.9 9.2

 Cold ............................................ 66.1 7.8 12.8 17.8 27.7 6.5 16.6 4.4

 No Washing Machine .................... 22.9 8.0 6.5 4.9 3.4 6.6 11.8 6.8

Clothes Dryer

 Use a Clothes Dryer ..................... 78.8 8.4 15.0 21.3 34.1 6.5 18.7 4.1

 Every Time Clothes are Washed 63.5 6.4 11.5 17.3 28.3 5.1 14.4 4.8

 Some, but not All, Loads ............. 12.7 1.3 2.8 3.6 5.0 1.1 3.3 8.4

 Used Infrequently ........................ 2.7 0.7 0.7 0.5 0.8 0.4 1.0 16.2

 No Clothes Dryer .......................... 28.2 10.3 7.9 5.8 4.2 8.5 15.1 6.1

Cooking

Number of Hot Meals Cooked in

the Home

 3 or More Times a Day ................. 7.5 1.5 1.8 2.1 2.1 1.4 3.4 11.4

 2 Times a Day ............................... 26.8 5.0 6.0 6.6 9.2 4.3 9.8 6.1

 Once a Day ................................... 43.3 6.7 8.8 10.8 17.1 5.0 12.3 4.8

 A Few Times Each Week ............. 21.7 3.4 4.1 5.8 8.3 2.6 5.5 7.1

 About Once a Week ...................... 4.0 1.0 1.2 0.8 1.1 0.8 1.4 15.3

 Less Than Once a Week .............. 2.4 0.6 0.7 0.7 0.4 0.5 0.9 19.9

 No Hot Meals Cooked ................... 1.2 0.5 Q 0.3 Q 0.4 0.6 27.3

Conventional Oven

 Use a Conventional Oven ............. 99.4 17.5 21.8 25.4 34.7 13.9 31.9 3.3

 More Than Once a Day .............. 8.6 1.8 1.8 2.1 2.9 1.7 3.6 11.5

 Once a Day ................................. 17.4 2.5 3.2 5.0 6.8 2.0 5.3 7.8

 Between Once a Day and

 Once a Week .............................. 33.1 4.3 6.2 8.7 14.0 3.5 8.6 6.0

 Once a Week .............................. 15.6 2.4 4.1 3.7 5.4 2.0 4.6 8.1

 Less Than Once a Week ............ 24.6 6.5 6.4 6.1 5.6 4.8 9.9 6.6

 Do Not Use ................................... 7.6 1.2 1.1 1.7 3.6 1.0 1.9 14.2

See footnotes at end of table.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC6-3a. Usage Indicators by Household Income, 

 Million U.S. Households, 2001 (Continued)

Usage Indicators

RSE Column Factor:

Total

2001 Household Income

Below Poverty

Line

Eligible

for

Federal

Assistance1

RSE

Row

Factors

Less

than

$14,999

$15,000

to

$29,999

$30,000

to

$49,999

$50,000

or

More

0.5 1.4 1.1 1.0 0.9 1.5 1.0

Microwave Oven

 Use a Microwave Oven ................. 92.1 14.0 19.4 23.8 35.0 11.0 26.7 3.3

 Most or All ................................... 8.2 1.7 2.3 1.8 2.4 1.5 2.8 11.0

 About Half ................................... 19.3 2.6 3.6 4.8 8.3 2.0 4.5 7.8

 Some or Very Little ..................... 22.4 2.8 4.2 6.5 8.9 2.0 5.8 6.9

 For Defrosting, Reheating,

 or Snacks .................................... 42.2 6.9 9.3 10.7 15.3 5.6 13.6 5.3

 No Microwave Oven ..................... 14.8 4.7 3.5 3.3 3.3 4.0 7.1 9.3

Electric Coffee Maker

 Use an Electric Coffee Maker ....... 65.5 8.7 12.8 16.7 27.3 6.4 17.2 4.1

 Three or More Times a Day ........ 2.4 0.5 0.5 0.6 0.7 0.4 0.9 19.0

 Two Times a Day ........................ 5.9 1.1 1.2 1.6 2.0 0.8 2.1 13.2

 Once a Day ................................. 33.6 4.1 6.4 8.6 14.4 2.9 8.4 5.9

 A Few Times Each Week ........... 9.4 1.0 1.8 2.5 4.1 0.7 2.1 10.4

 About Once a Week .................... 5.2 0.6 1.0 1.3 2.4 0.6 1.2 15.0

 Less than Once a Week ............. 9.0 1.4 1.9 2.1 3.6 1.1 2.4 9.8

 No Electric Coffee Maker .............. 41.5 10.0 10.0 10.4 11.0 8.6 16.6 4.9

Time Electric Coffee Maker is

Left On

 Turned Off Right Away ................. 18.8 3.1 4.2 5.1 6.4 2.3 5.6 7.2

 Less than 15 Minutes .................... 10.0 1.1 1.8 2.6 4.5 0.9 2.5 10.1

 15 Minutes to 1 Hour .................... 24.6 2.9 4.3 6.2 11.2 1.9 5.8 7.3

 More than 1 Hour .......................... 12.1 1.6 2.5 2.9 5.2 1.3 3.4 9.8

Electric Toaster

 Use a Electric Toaster .................. 36.1 5.1 7.7 8.9 14.3 4.1 10.3 5.7

 Three or More Times a Day ........ 1.0 0.3 0.3 0.3 0.3 Q 0.5 27.2

 Two Times a Day ........................ 2.7 0.5 0.7 0.6 1.0 0.3 0.9 18.4

 Once a Day ................................. 8.2 1.0 2.0 1.9 3.2 0.9 2.4 11.8

 A Few Times Each Week ........... 11.9 1.3 2.3 3.0 5.3 1.2 2.8 9.5

 About Once a Week .................... 4.3 0.7 1.0 1.1 1.5 0.5 1.5 14.3

 Less than Once a Week ............. 7.9 1.4 1.4 2.1 3.1 1.0 2.2 10.3

 No Electric Toaster ....................... 70.9 13.6 15.2 18.2 24.0 10.9 23.5 3.6

Lights

Indoor Lights Turned On:

 1 to 4 Hours per Day

 None ........................................... 10.2 2.7 2.6 2.2 2.8 2.2 4.4 9.8

 1 .................................................. 30.1 8.0 8.1 7.5 6.5 6.5 13.0 5.4

 2 .................................................. 30.7 4.8 6.7 8.5 10.6 3.7 9.1 6.3

 3 .................................................. 16.6 1.9 2.8 4.3 7.6 1.4 3.7 8.4

 4 .................................................. 10.5 0.8 1.8 2.7 5.2 0.8 2.1 11.2

 5 or More .................................... 8.8 0.4 0.9 1.9 5.6 0.5 1.5 13.9

 Between 4 and 12 Hours per Day

 None ........................................... 30.2 7.1 7.4 6.9 8.9 5.6 11.5 5.8

 1 .................................................. 25.2 5.5 6.3 6.8 6.5 4.4 9.1 6.3

 2 .................................................. 25.5 4.1 5.7 6.8 9.0 3.1 7.8 6.5

 3 .................................................. 12.7 1.2 1.8 3.9 5.8 1.2 3.1 9.9

 4 .................................................. 7.2 0.5 1.2 1.6 3.8 0.5 1.5 13.2

 5 or More .................................... 6.2 0.3 0.4 1.2 4.4 0.3 0.8 17.6

 More then 12 Hours per Day

 None ........................................... 81.1 13.5 17.7 21.1 28.8 10.7 24.8 3.5

 1 .................................................. 14.4 3.1 3.0 3.5 4.8 2.5 5.3 8.2

 2 .................................................. 6.8 1.4 1.4 1.5 2.4 1.3 2.3 13.7

 3 .................................................. 2.4 0.4 0.3 0.5 1.2 0.4 0.7 25.4

 4 .................................................. 1.3 Q Q Q 0.6 Q 0.4 27.0

 5 or More .................................... 1.1 Q Q 0.2 0.6 Q Q 27.1

See footnotes at end of table.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC6-3a. Usage Indicators by Household Income, 

 Million U.S. Households, 2001 (Continued)

Usage Indicators

RSE Column Factor:

Total

2001 Household Income

Below Poverty

Line

Eligible

for

Federal

Assistance1

RSE

Row

Factors

Less

than

$14,999

$15,000

to

$29,999

$30,000

to

$49,999

$50,000

or

More

0.5 1.4 1.1 1.0 0.9 1.5 1.0

Outdoor Lights on All Night

 Used ............................................. 24.5 3.2 5.2 5.7 10.5 2.5 6.6 7.3

 Not Used ...................................... 82.5 15.5 17.7 21.4 27.8 12.5 27.2 3.4

Gas Fireplace

Use a Gas Fireplace During Winter

Months ............................................ 3.7 Q Q 0.7 2.6 Q 0.3 18.1

 Most Days ..................................... 1.3 Q Q 0.3 0.9 Q Q 29.2

 Almost Once a Week .................... 1.1 Q Q Q 0.8 Q Q 28.8

 Less Than 4 Times a Month ....... 1.2 Q Q 0.3 0.9 Q Q 25.6

Use a Personal Computer ............ 60.0 3.7 8.7 16.0 31.6 3.7 10.5 4.8

Hours PC Turned On Each Week

 Less Than 2 Hours ....................... 10.3 0.8 2.1 3.1 4.3 0.7 2.1 11.1

 2 to 15 Hours ................................ 26.3 1.7 4.0 7.4 13.2 1.7 4.8 6.8

 16 to 40 Hours .............................. 12.2 0.5 1.2 3.1 7.4 0.6 1.7 11.2

 More than 40 Hours ...................... 5.7 0.4 0.5 1.4 3.4 0.4 0.9 16.7

 On All The Time ............................ 5.6 0.3 0.9 1.0 3.4 0.3 1.0 17.5

Use of PCs Turned on 16 Hours

a Week or More

 Personal Use Only ........................ 14.0 1.0 1.7 3.9 7.4 0.9 2.6 10.2

 Business Use Only ....................... 2.1 Q Q 0.3 1.6 Q Q 18.9

 Both Personal and Business ......... 7.3 Q 0.7 1.3 5.1 0.3 0.8 15.9

Business Use of PCs Turned on

16 Hours a Week or More

 Use to Telecommute ..................... 3.6 Q 0.3 0.5 2.8 Q Q 22.5

 Other Business Use ...................... 5.8 0.2 0.6 1.0 4.0 0.3 0.8 17.6

Battery Operated

Appliances/Tools

 Use Battery Operated Appliances/

 Tools ............................................. 47.7 3.2 7.9 12.5 24.0 2.4 8.7 5.7

 How Maintained When

 Not in Use

 Plugged in All The Time .............. 10.8 0.8 1.2 2.9 5.9 0.5 1.8 11.2

 Recharged As Needed ............... 33.8 2.1 6.3 9.0 16.3 1.7 6.3 6.6

 Both Ways are Used ................... 3.1 0.3 0.4 0.6 1.8 Q 0.6 17.6

 Don’t Use Any ............................... 59.3 15.5 14.9 14.6 14.3 12.6 25.1 4.2

1 Below 150 percent of poverty line or 60 percent of median State income. 2 The 1.0 million households that do not heat their homes are not included in these categories.

Q = Data withheld either because the Relative Standard Error (RSE) was greater than 50 percent or fewer than 10 households were sampled.

Notes: • To obtain the RSE percentage for any table cell, multiply the corresponding column and row factors. • Because of rounding, data may not sum to totals. • See

"Glossary" for definition of terms used in this report. • All temperatures listed are in degrees Fahrenheit.

Source: Energy Information Administration, Office of Energy Markets and End Use, Forms EIA-457 A, B, C of the 2001 Residential Energy Consumption Survey.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC6-4a. Usage Indicators by Type of Housing Unit, 

 Million U.S. Households, 2001

Usage Indicators

RSE Column Factor:

Total

Type of Housing Unit

RSE

Row

Factors

Single-Family 

Apartments in Buildings With

Two to Four Units Five or More Units Mobile Homes

0.4 0.5 1.6 1.4 2.0

Total ............................................... 107.0 73.7 9.5 17.0 6.8 4.3

Weekday Home Activities

 Home Used for Business

 Yes .............................................. 7.6 6.2 0.4 0.5 0.5 14.6

 No ............................................... 99.4 67.5 9.1 16.5 6.4 4.5

 Energy-Intensive Activity

 Yes .............................................. 1.7 1.4 Q Q Q 29.9

 No ............................................... 105.2 72.2 9.4 16.9 6.8 4.3

 Someone Home All Day

 Yes .............................................. 53.0 38.3 4.2 7.3 3.2 5.3

 No ............................................... 53.9 35.4 5.3 9.7 3.6 5.2

Heating

 Heat Home .................................... 106.0 73.4 9.4 16.4 6.8 4.3

 Do Not Heat Home ....................... 1.0 0.3 Q 0.6 Q 20.3

 No Heating Equipment ................ 0.5 0.2 Q 0.3 Q 25.9

 Have Equipment But

 Do Not Use It .............................. 0.4 Q Q 0.3 Q 30.7

Adequacy of Insulation

 Well Insulated ............................... 42.6 30.4 3.0 6.8 2.5 6.7

 Adequately Insulated .................... 43.1 30.1 3.3 7.1 2.6 6.0

 Poorly Insulated ............................ 19.4 12.2 2.9 2.7 1.7 8.1

 No Insulation ................................. 0.9 0.6 Q Q Q 34.7

 Don’t Know ................................... 0.9 0.4 Q 0.4 Q 35.3

Occurrences of Drafts During

Winter

 Never ............................................ 5.9 3.6 1.0 0.9 0.3 14.3

 Some of the Time ......................... 6.4 3.9 1.2 1.0 0.4 12.6

 Most of the ................................... 34.6 23.6 3.2 5.4 2.5 6.8

 All of the Time ............................... 55.3 40.5 3.5 8.0 3.4 5.7

 Don’t Know ................................... 4.7 2.1 0.6 1.7 0.2 15.4

 Thermostat

 Heat Home .................................. 106.0 73.4 9.4 16.4 6.8 4.3

 Thermostat Available During

 Heating Season ........................ 91.5 66.4 7.5 11.6 6.1 5.1

 Programmable1

 Yes ........................................ 25.1 20.9 1.3 1.9 1.0 11.8

 No ......................................... 66.4 45.5 6.2 9.6 5.1 5.6

 No Thermostat .......................... 14.5 7.0 1.9 4.9 0.7 9.5

 Do Not Heat Home ..................... 1.0 0.3 Q 0.6 Q 20.3

Lower Winter Temperature

Settings1

 Daytime When No One is at Home

 Yes .............................................. 47.2 34.9 3.7 5.5 3.1 6.2

 No ............................................... 48.5 33.8 4.4 7.1 3.2 5.8

 Unknown ..................................... 10.3 4.7 1.3 3.8 0.5 11.2

 During Sleeping Hours

 Yes .............................................. 45.7 34.5 2.9 5.4 2.8 6.4

 No ............................................... 51.1 35.0 5.3 7.3 3.5 5.7

 Unknown ..................................... 9.2 3.9 1.2 3.7 0.4 11.7

See footnotes at end of table.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC6-4a. Usage Indicators by Type of Housing Unit, 

 Million U.S. Households, 2001 (Continued)

Usage Indicators

RSE Column Factor:

Total

Type of Housing Unit

RSE

Row

Factors

Single-Family 

Apartments in Buildings With

Two to Four Units Five or More Units Mobile Homes

0.4 0.5 1.6 1.4 2.0

Daytime Winter Temperature

When Someone is at Home1

 Heat Turned On ............................ 96.8 69.4 8.2 12.8 6.3 4.5

 63 Degrees or Less .................... 3.9 2.5 0.6 0.6 0.3 15.2

 64 to 66 Degrees ....................... 8.4 5.7 0.9 1.2 0.6 12.0

 67 to 69 Degrees ........................ 23.6 18.6 1.5 2.0 1.5 8.0

 70 Degrees ................................. 25.7 18.3 2.3 3.4 1.6 7.3

 71 to 73 Degrees ........................ 16.5 12.2 1.0 2.1 1.2 9.7

 74 Degrees or More .................... 18.6 12.3 1.8 3.4 1.2 9.1

 Heat Turned Off ............................ 2.0 0.9 0.2 0.7 Q 24.0

 Unknown/No Answer .................... 7.2 3.0 1.0 2.9 0.3 13.6

Daytime Winter Temperature

When No One is at Home1

 Heat Turned On ............................ 87.6 64.2 7.3 10.3 5.7 4.2

 63 Degrees or Less .................... 17.7 13.1 1.6 1.6 1.3 9.7

 64 to 66 Degrees ....................... 17.2 13.1 1.4 1.7 1.0 9.2

 67 to 69 Degrees ........................ 19.1 14.8 1.4 1.7 1.2 10.1

 70 Degrees ................................. 15.1 10.3 1.5 2.2 1.1 8.8

 71 to 73 Degrees ........................ 8.7 6.5 0.5 1.2 0.5 12.4

 74 Degrees or More .................... 9.8 6.4 0.9 1.9 0.6 13.0

 Heat Turned Off ............................ 10.5 5.7 1.0 3.1 0.6 12.9

 Unknown/No Answer .................... 8.0 3.5 1.1 3.0 0.4 12.5

Winter Temperature During

Sleeping Hours1

 Heat Turned On ............................ 91.8 66.6 7.8 11.1 6.2 4.5

 63 Degrees or Less .................... 15.4 11.9 1.2 1.3 1.1 11.1

 64 to 66 Degrees ....................... 17.4 13.1 1.4 1.7 1.2 8.2

 67 to 69 Degrees ........................ 21.0 15.8 1.7 2.1 1.4 8.7

 70 Degrees ................................. 17.4 12.1 1.9 2.2 1.2 8.5

 71 to 73 Degrees ........................ 9.5 6.9 0.9 1.2 0.5 12.6

 74 Degrees or More .................... 11.1 6.9 0.9 2.5 0.8 12.1

 Heat Turned Off ............................ 7.1 3.8 0.6 2.4 0.3 14.8

 Unknown/No Answer .................... 7.1 2.9 1.0 2.9 0.3 13.4

Air-Conditioning

Central Air-Conditioning

 Use a Central System ................... 58.6 44.4 3.2 7.4 3.7 6.6

 All Summer ................................. 28.4 21.8 1.7 3.2 1.7 9.6

 Quite a Bit ................................... 12.1 9.0 0.6 1.7 0.8 12.0

 Only a Few Times ....................... 16.8 12.8 0.9 2.1 0.9 11.3

 Not at All ..................................... 1.4 0.8 Q 0.3 Q 33.3

 No Central System ........................ 48.4 29.3 6.3 9.6 3.1 5.9

Window/Wall Air-Conditioning

 Use Window/Wall Units ................ 25.1 14.8 3.3 5.2 1.8 7.4

 All Summer ................................. 4.9 2.9 0.6 0.8 0.6 15.0

 Quite a Bit ................................... 5.2 3.3 0.6 0.9 0.3 16.3

 Only a Few Times ....................... 14.1 8.2 1.9 3.1 0.8 9.2

 Not at All ..................................... 0.9 0.4 Q 0.4 Q 32.4

 No Window/Wall Units .................. 81.9 58.9 6.2 11.8 5.0 4.4

See footnotes at end of table.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC6-4a. Usage Indicators by Type of Housing Unit, 

 Million U.S. Households, 2001 (Continued)

Usage Indicators

RSE Column Factor:

Total

Type of Housing Unit

RSE

Row

Factors

Single-Family 

Apartments in Buildings With

Two to Four Units Five or More Units Mobile Homes

0.4 0.5 1.6 1.4 2.0

Hot Water

Dishwasher Use Each Week

 Use a Dishwasher ......................... 56.7 44.5 2.6 7.1 2.5 6.6

 Less Than Once a Week ............ 9.4 6.4 0.6 2.0 0.5 12.0

 Once Each Week ........................ 7.5 5.6 0.3 1.2 0.4 15.7

 2 to 3 Times ................................ 17.8 14.2 0.8 2.2 0.6 11.2

 4 to 6 Times ................................ 11.7 10.2 0.4 0.6 0.4 14.3

 At Least Once Each Day ............ 10.4 8.1 0.5 1.1 0.7 14.1

 No Dishwasher ............................. 50.3 29.2 6.9 9.9 4.3 5.4

Loads of Laundry Washed Each

Week

 Use a Clothes Washer .................. 84.1 70.0 4.5 3.9 5.8 5.3

 1 Load or Less ............................ 6.8 5.3 0.4 0.5 0.7 14.7

 2 to 9 Loads ................................ 65.1 54.0 3.6 3.2 4.3 5.9

 10 to 15 Loads ............................ 9.6 8.2 0.5 0.3 0.6 13.1

 More than 15 Loads .................... 2.7 2.4 Q Q Q 23.1

 No Washing Machine .................... 22.9 3.7 5.0 13.1 1.1 8.6

Water Temperature Setting for

Clothes Washer

 Wash Cycle

 Hot .............................................. 6.2 5.0 0.3 0.5 0.5 16.2

 Warm .......................................... 49.7 41.8 2.9 2.2 2.7 6.5

 Cold ............................................ 28.2 23.1 1.3 1.2 2.6 8.7

 Rinse Cycle

 Hot .............................................. 1.4 1.1 Q Q Q 37.8

 Warm .......................................... 16.6 13.8 1.2 1.0 0.7 11.8

 Cold ............................................ 66.1 55.1 3.3 2.9 4.9 6.2

 No Washing Machine .................... 22.9 3.7 5.0 13.1 1.1 8.6

Clothes Dryer

 Use a Clothes Dryer ..................... 78.8 66.4 4.1 3.1 5.2 5.6

 Every Time Clothes are Washed 63.5 52.9 3.5 2.8 4.3 6.1

 Some, but not All, Loads ............. 12.7 11.2 0.5 0.3 0.7 13.4

 Used Infrequently ........................ 2.7 2.3 Q Q 0.2 21.4

 No Clothes Dryer .......................... 28.2 7.3 5.4 13.9 1.6 7.2

Cooking

Number of Hot Meals Cooked in

the Home

 3 or More Times a Day ................. 7.5 5.1 0.6 1.2 0.7 13.2

 2 Times a Day ............................... 26.8 18.9 2.5 3.3 2.1 7.2

 Once a Day ................................... 43.3 30.7 3.6 6.5 2.5 6.0

 A Few Times Each Week ............. 21.7 14.4 2.0 4.2 1.1 8.2

 About Once a Week ...................... 4.0 2.6 0.3 0.9 0.3 16.2

 Less Than Once a Week .............. 2.4 1.4 0.4 0.5 Q 20.2

 No Hot Meals Cooked ................... 1.2 0.7 Q 0.4 Q 41.3

Conventional Oven

 Use a Conventional Oven ............. 99.4 67.5 9.1 16.3 6.4 4.5

 More Than Once a Day .............. 8.6 5.9 1.0 1.4 0.4 12.6

 Once a Day ................................. 17.4 11.9 1.8 2.5 1.2 9.0

 Between Once a Day and

 Once a Week .............................. 33.1 24.5 2.4 4.4 1.8 7.1

 Once a Week .............................. 15.6 10.5 1.6 2.4 1.1 9.0

 Less Than Once a Week ............ 24.6 14.7 2.3 5.6 1.9 7.8

 Do Not Use ................................... 7.6 6.2 0.4 0.7 0.4 16.9

See footnotes at end of table.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC6-4a. Usage Indicators by Type of Housing Unit, 

 Million U.S. Households, 2001 (Continued)

Usage Indicators

RSE Column Factor:

Total

Type of Housing Unit

RSE

Row

Factors

Single-Family 

Apartments in Buildings With

Two to Four Units Five or More Units Mobile Homes

0.4 0.5 1.6 1.4 2.0

Microwave Oven

 Use a Microwave Oven ................. 92.1 65.9 7.6 12.5 6.2 4.2

 Most or All ................................... 8.2 5.2 0.8 1.7 0.5 11.8

 About Half ................................... 19.3 13.9 1.7 2.6 1.1 9.5

 Some or Very Little ..................... 22.4 16.3 1.8 2.8 1.5 8.3

 For Defrosting, Reheating,

 or Snacks .................................... 42.2 30.4 3.4 5.4 3.1 6.8

 No Microwave Oven ..................... 14.8 7.8 1.9 4.5 0.7 10.6

Electric Coffee Maker

 Use an Electric Coffee Maker ....... 65.5 49.8 4.3 7.3 4.1 5.2

 Three or More Times a Day ........ 2.4 1.8 Q 0.3 Q 22.9

 Two Times a Day ........................ 5.9 4.8 0.4 0.3 0.4 16.5

 Once a Day ................................. 33.6 25.9 2.0 3.4 2.3 6.9

 A Few Times Each Week ........... 9.4 7.2 0.6 1.2 0.5 11.9

 About Once a Week .................... 5.2 3.7 0.6 0.7 0.3 15.3

 Less than Once a Week ............. 9.0 6.6 0.6 1.3 0.5 12.2

 No Electric Coffee Maker .............. 41.5 23.9 5.1 9.7 2.7 5.7

Time Electric Coffee Maker is

Left On

 Turned Off Right Away ................. 18.8 13.7 1.5 2.5 1.1 9.4

 Less than 15 Minutes .................... 10.0 6.8 0.8 1.7 0.8 11.1

 15 Minutes to 1 Hour .................... 24.6 19.6 1.4 2.2 1.4 8.7

 More than 1 Hour .......................... 12.1 9.7 0.6 1.0 0.9 11.3

Electric Toaster

 Use a Electric Toaster .................. 36.1 25.9 2.7 5.5 1.9 7.3

 Three or More Times a Day ........ 1.0 0.7 Q Q Q 40.2

 Two Times a Day ........................ 2.7 2.1 Q 0.4 Q 21.6

 Once a Day ................................. 8.2 6.2 0.6 1.0 0.3 14.4

 A Few Times Each Week ........... 11.9 8.8 0.9 1.6 0.6 11.3

 About Once a Week .................... 4.3 2.8 0.3 0.9 0.2 15.1

 Less than Once a Week ............. 7.9 5.3 0.5 1.4 0.7 11.7

 No Electric Toaster ....................... 70.9 47.8 6.8 11.5 4.9 4.5

Lights

Indoor Lights Turned On:

 1 to 4 Hours per Day

 None ........................................... 10.2 6.3 1.3 1.7 1.0 12.4

 1 .................................................. 30.1 17.7 3.7 6.5 2.3 6.3

 2 .................................................. 30.7 20.9 2.4 5.5 2.0 7.3

 3 .................................................. 16.6 12.6 1.1 2.1 0.8 9.9

 4 .................................................. 10.5 8.7 0.8 0.8 0.3 14.2

 5 or More .................................... 8.8 7.7 0.4 0.5 0.4 15.7

 Between 4 and 12 Hours per Day

 None ........................................... 30.2 19.3 3.1 5.4 2.4 7.6

 1 .................................................. 25.2 15.0 3.0 5.5 1.6 7.5

 2 .................................................. 25.5 18.2 1.8 4.1 1.3 8.0

 3 .................................................. 12.7 9.7 0.9 1.2 0.9 12.0

 4 .................................................. 7.2 6.1 0.4 0.4 0.3 14.5

 5 or More .................................... 6.2 5.3 0.3 0.3 0.3 19.8

 More then 12 Hours per Day

 None ........................................... 81.1 55.7 6.7 13.7 5.0 4.5

 1 .................................................. 14.4 9.7 1.5 2.3 0.9 9.8

 2 .................................................. 6.8 4.9 0.5 0.8 0.5 15.6

 3 .................................................. 2.4 1.6 0.4 Q 0.3 28.3

 4 .................................................. 1.3 1.0 Q Q Q 33.7

 5 or More .................................... 1.1 0.8 Q Q Q 30.4

See footnotes at end of table.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC6-4a. Usage Indicators by Type of Housing Unit, 

 Million U.S. Households, 2001 (Continued)

Usage Indicators

RSE Column Factor:

Total

Type of Housing Unit

RSE

Row

Factors

Single-Family 

Apartments in Buildings With

Two to Four Units Five or More Units Mobile Homes

0.4 0.5 1.6 1.4 2.0

Outdoor Lights on All Night

 Used ............................................. 24.5 20.2 1.4 1.2 1.6 9.6

 Not Used ...................................... 82.5 53.5 8.1 15.8 5.2 4.3

Gas Fireplace

Use a Gas Fireplace During Winter

Months ............................................ 3.7 3.1 Q Q Q 19.6

 Most Days ..................................... 1.3 1.2 Q Q Q 39.0

 Almost Once a Week .................... 1.1 0.9 Q Q Q 35.3

 Less Than 4 Times a Month ....... 1.2 1.1 Q Q Q 33.0

Use a Personal Computer ............ 60.0 46.4 4.1 6.8 2.7 5.9

Hours PC Turned On Each Week

 Less Than 2 Hours ....................... 10.3 7.4 1.0 1.2 0.7 12.3

 2 to 15 Hours ................................ 26.3 20.8 1.5 2.9 1.1 8.1

 16 to 40 Hours .............................. 12.2 9.6 0.8 1.3 0.5 11.6

 More than 40 Hours ...................... 5.7 4.6 0.3 0.6 Q 17.5

 On All The Time ............................ 5.6 4.0 0.5 0.7 0.4 16.0

Use of PCs Turned on 16 Hours

a Week or More

 Personal Use Only ........................ 14.0 10.6 1.0 1.7 0.7 10.8

 Business Use Only ....................... 2.1 1.8 Q 0.2 Q 24.6

 Both Personal and Business ......... 7.3 5.9 0.5 0.7 0.2 15.4

Business Use of PCs Turned on

16 Hours a Week or More

 Use to Telecommute ..................... 3.6 3.1 0.3 0.2 Q 23.8

 Other Business Use ...................... 5.8 4.6 0.3 0.8 0.2 17.1

Battery Operated

Appliances/Tools

 Use Battery Operated Appliances/

 Tools ............................................. 47.7 38.8 2.6 3.7 2.6 6.6

 How Maintained When

 Not in Use

 Plugged in All The Time .............. 10.8 8.9 0.5 0.9 0.5 14.0

 Recharged As Needed ............... 33.8 27.3 2.0 2.5 2.0 7.1

 Both Ways are Used ................... 3.1 2.7 Q Q Q 20.1

 Don’t Use Any ............................... 59.3 34.9 6.9 13.3 4.2 5.1

1 The 1.0 million households that do not heat their homes are not included in these categories.

Q = Data withheld either because the Relative Standard Error (RSE) was greater than 50 percent or fewer than 10 households were sampled.

Notes: • To obtain the RSE percentage for any table cell, multiply the corresponding column and row factors. • Because of rounding, data may not sum to

totals. • See "Glossary" for definition of terms used in this report. • All temperatures listed are in degrees Fahrenheit.

Source: Energy Information Administration, Office of Energy Markets and End Use, Forms EIA-457 A, B, C of the 2001 Residential Energy Consumption

Survey.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC6-5a. Usage Indicators by Type of Owner-Occupied Housing Unit, 

 Million U.S. Households, 2001

Usage Indicators

RSE Column Factor:

Total

OwnerOccupied

Units

Type of Owner-Occupied Housing Unit

RSE

Row

Factors

Single-Family 

Apartments in Buildings With

Two to Four Units Five or More Units Mobile Homes

0.3 0.4 2.1 2.9 1.4

Total ............................................... 72.7 63.2 2.1 1.8 5.7 6.7

Weekday Home Activities

 Home Used for Business

 Yes .............................................. 6.2 5.6 Q Q 0.4 18.8

 No ............................................... 66.5 57.6 2.0 1.7 5.3 7.2

 Energy-Intensive Activity

 Yes .............................................. 1.4 1.3 Q Q Q 45.7

 No ............................................... 71.3 61.9 2.0 1.7 5.6 6.8

 Someone Home All Day

 Yes .............................................. 37.9 33.2 1.1 0.9 2.7 8.3

 No ............................................... 34.8 30.0 1.0 0.8 3.0 9.0

Heating

 Heat Home .................................... 72.4 63.0 2.0 1.7 5.7 6.7

 Do Not Heat Home ....................... 0.4 0.2 Q Q Q 49.3

 No Heating Equipment ................ 0.3 0.2 Q Q Q 41.6

 Have Equipment But

 Do Not Use It .............................. Q Q Q Q Q NF

Adequacy of Insulation

 Well Insulated ............................... 32.4 28.4 0.8 1.0 2.2 10.3

 Adequately Insulated .................... 30.3 26.5 0.9 0.6 2.3 9.5

 Poorly Insulated ............................ 9.4 7.8 0.3 0.2 1.2 13.7

 No Insulation ................................. 0.4 0.4 Q Q Q 69.6

 Don’t Know ................................... 0.2 Q Q Q Q 95.4

Occurrences of Drafts During

Winter

 Never ............................................ 2.3 1.9 Q Q 0.2 27.4

 Some of the Time ......................... 2.9 2.3 Q Q 0.3 24.9

 Most of the ................................... 23.4 20.2 0.7 0.4 2.1 11.4

 All of the Time ............................... 42.9 37.7 1.0 1.2 3.0 8.3

 Don’t Know ................................... 1.3 1.0 Q Q Q 46.9

 Thermostat

 Heat Home .................................. 72.4 63.0 2.0 1.7 5.7 6.7

 Thermostat Available During

 Heating Season ........................ 66.3 58.1 1.8 1.3 5.1 7.5

 Programmable1

 Yes ........................................ 20.6 19.0 0.5 Q 0.9 15.7

 No ......................................... 45.7 39.1 1.3 1.1 4.2 9.2

 No Thermostat .......................... 6.1 4.9 0.3 0.4 0.5 13.3

 Do Not Heat Home ..................... 0.4 0.2 Q Q Q 49.3

Lower Winter Temperature

Settings1

 Daytime When No One is at Home

 Yes .............................................. 34.2 30.3 0.7 0.6 2.6 9.5

 No ............................................... 34.6 29.9 1.2 0.9 2.7 9.5

 Unknown ..................................... 3.5 2.8 Q Q 0.4 29.1

 During Sleeping Hours

 Yes .............................................. 34.1 30.5 0.5 0.6 2.5 9.8

 No ............................................... 35.6 30.3 1.4 0.9 2.9 9.5

 Unknown ..................................... 2.7 2.2 Q Q 0.3 31.1

See footnotes at end of table.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC6-5a. Usage Indicators by Type of Owner-Occupied Housing Unit, 

 Million U.S. Households, 2001 (Continued)

Usage Indicators

RSE Column Factor:

Total

OwnerOccupied

Units

Type of Owner-Occupied Housing Unit

RSE

Row

Factors

Single-Family 

Apartments in Buildings With

Two to Four Units Five or More Units Mobile Homes

0.3 0.4 2.1 2.9 1.4

Daytime Winter Temperature

When Someone is at Home1

 Heat Turned On ............................ 69.6 60.8 1.9 1.5 5.4 6.7

 63 Degrees or Less .................... 2.4 2.0 Q Q 0.2 29.6

 64 to 66 Degrees ....................... 5.6 4.9 0.2 Q 0.4 18.2

 67 to 69 Degrees ........................ 19.1 16.8 0.6 0.3 1.4 12.1

 70 Degrees ................................. 18.4 15.9 0.6 0.5 1.4 11.7

 71 to 73 Degrees ........................ 12.3 10.9 0.3 Q 0.9 14.8

 74 Degrees or More .................... 11.8 10.4 Q 0.3 1.0 14.0

 Heat Turned Off ............................ 0.8 0.6 Q Q Q 55.1

 Unknown/No Answer .................... 2.0 1.6 Q Q 0.2 35.9

Daytime Winter Temperature

When No One is at Home1

 Heat Turned On ............................ 64.5 56.5 1.8 1.3 4.8 7.4

 63 Degrees or Less .................... 13.2 11.4 0.5 Q 1.1 13.4

 64 to 66 Degrees ....................... 12.8 11.6 0.2 Q 0.8 15.3

 67 to 69 Degrees ........................ 15.1 13.3 0.5 Q 1.1 14.5

 70 Degrees ................................. 10.5 9.1 0.4 0.3 0.8 14.0

 71 to 73 Degrees ........................ 6.6 5.8 Q Q 0.5 19.0

 74 Degrees or More .................... 6.3 5.5 Q Q 0.5 20.8

 Heat Turned Off ............................ 5.3 4.4 Q 0.2 0.5 22.4

 Unknown/No Answer .................... 2.6 2.0 Q Q 0.3 33.0

Winter Temperature During

Sleeping Hours1

 Heat Turned On ............................ 67.0 58.5 2.0 1.3 5.3 6.8

 63 Degrees or Less .................... 11.9 10.5 0.3 Q 1.0 15.3

 64 to 66 Degrees ....................... 12.8 11.3 0.2 Q 1.0 13.1

 67 to 69 Degrees ........................ 16.6 14.4 0.6 0.4 1.2 13.0

 70 Degrees ................................. 12.1 10.3 0.5 0.3 0.9 13.2

 71 to 73 Degrees ........................ 7.0 6.2 Q Q 0.4 21.2

 74 Degrees or More .................... 6.8 5.8 Q Q 0.7 19.3

 Heat Turned Off ............................ 3.5 3.0 Q 0.2 0.2 23.6

 Unknown/No Answer .................... 1.9 1.5 Q Q Q 42.4

Air-Conditioning

Central Air-Conditioning

 Use a Central System ................... 45.5 40.6 0.8 1.0 3.2 10.5

 All Summer ................................. 22.3 20.0 0.3 Q 1.5 14.6

 Quite a Bit ................................... 9.3 8.2 Q Q 0.7 17.2

 Only a Few Times ....................... 13.0 11.7 Q 0.3 0.8 15.3

 Not at All ..................................... 0.9 0.7 Q Q Q 62.1

 No Central System ........................ 27.2 22.6 1.3 0.8 2.5 9.5

Window/Wall Air-Conditioning

 Use Window/Wall Units ................ 14.6 11.9 0.8 0.5 1.4 11.1

 All Summer ................................. 2.7 2.1 Q Q 0.3 26.1

 Quite a Bit ................................... 3.2 2.7 Q Q 0.3 26.2

 Only a Few Times ....................... 8.3 6.8 0.5 0.4 0.7 13.4

 Not at All ..................................... 0.4 0.3 Q Q Q 70.6

 No Window/Wall Units .................. 58.1 51.3 1.3 1.3 4.3 8.0

See footnotes at end of table.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC6-5a. Usage Indicators by Type of Owner-Occupied Housing Unit, 

 Million U.S. Households, 2001 (Continued)

Usage Indicators

RSE Column Factor:

Total

OwnerOccupied

Units

Type of Owner-Occupied Housing Unit

RSE

Row

Factors

Single-Family 

Apartments in Buildings With

Two to Four Units Five or More Units Mobile Homes

0.3 0.4 2.1 2.9 1.4

Hot Water

Dishwasher Use Each Week

 Use a Dishwasher ......................... 45.7 41.2 0.9 1.3 2.3 9.5

 Less Than Once a Week ............ 6.9 5.9 0.2 0.4 0.4 17.0

 Once Each Week ........................ 5.5 4.9 Q Q 0.3 24.5

 2 to 3 Times ................................ 14.8 13.3 0.3 0.6 0.5 15.4

 4 to 6 Times ................................ 10.1 9.5 Q Q 0.4 17.8

 At Least Once Each Day ............ 8.4 7.6 Q Q 0.6 18.2

 No Dishwasher ............................. 27.0 22.0 1.1 0.5 3.4 9.4

Loads of Laundry Washed Each

Week

 Use a Clothes Washer .................. 68.8 61.4 1.7 0.7 5.0 7.6

 1 Load or Less ............................ 5.5 4.6 Q Q 0.6 18.4

 2 to 9 Loads ................................ 53.0 47.4 1.3 0.6 3.8 8.4

 10 to 15 Loads ............................ 8.1 7.4 Q Q 0.5 15.3

 More than 15 Loads .................... 2.2 2.0 Q Q Q 32.2

 No Washing Machine .................... 3.9 1.8 0.4 1.0 0.7 17.7

Water Temperature Setting for

Clothes Washer

 Wash Cycle

 Hot .............................................. 5.0 4.3 Q Q 0.4 19.3

 Warm .......................................... 41.2 37.2 1.3 Q 2.4 8.0

 Cold ............................................ 22.7 19.8 0.3 0.4 2.2 12.2

 Rinse Cycle

 Hot .............................................. 1.1 0.9 Q Q Q 55.5

 Warm .......................................... 13.3 12.1 0.5 Q 0.6 17.5

 Cold ............................................ 54.4 48.4 1.1 0.6 4.3 8.5

 No Washing Machine .................... 3.9 1.8 0.4 1.0 0.7 17.7

Clothes Dryer

 Use a Clothes Dryer ..................... 65.5 58.7 1.6 0.6 4.6 7.7

 Every Time Clothes are Washed 52.6 46.8 1.3 0.6 3.8 8.5

 Some, but not All, Loads ............. 10.9 10.0 0.2 Q 0.6 15.2

 Used Infrequently ........................ 2.0 1.9 Q Q Q 37.4

 No Clothes Dryer .......................... 7.3 4.5 0.5 1.1 1.1 14.0

Cooking

Number of Hot Meals Cooked in

the Home

 3 or More Times a Day ................. 4.6 3.9 Q Q 0.6 22.6

 2 Times a Day ............................... 18.5 15.8 0.6 0.3 1.7 11.9

 Once a Day ................................... 31.4 27.4 1.0 0.9 2.1 8.4

 A Few Times Each Week ............. 13.6 12.2 0.2 Q 0.8 13.0

 About Once a Week ...................... 2.6 2.2 Q Q 0.2 25.8

 Less Than Once a Week .............. 1.5 1.2 Q Q Q 36.0

 No Hot Meals Cooked ................... 0.6 0.6 Q Q Q 76.3

Conventional Oven

 Use a Conventional Oven ............. 66.7 57.6 2.0 1.7 5.4 7.3

 More Than Once a Day .............. 5.4 4.9 Q Q 0.3 22.9

 Once a Day ................................. 11.6 9.9 0.3 0.2 1.1 14.2

 Between Once a Day and

 Once a Week .............................. 23.7 21.3 0.3 0.5 1.5 12.1

 Once a Week .............................. 10.8 9.2 0.4 Q 1.0 14.0

 Less Than Once a Week ............ 15.2 12.2 0.8 0.7 1.6 12.2

 Do Not Use ................................... 6.1 5.6 Q Q 0.3 23.9

See footnotes at end of table.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC6-5a. Usage Indicators by Type of Owner-Occupied Housing Unit, 

 Million U.S. Households, 2001 (Continued)

Usage Indicators

RSE Column Factor:

Total

OwnerOccupied

Units

Type of Owner-Occupied Housing Unit

RSE

Row

Factors

Single-Family 

Apartments in Buildings With

Two to Four Units Five or More Units Mobile Homes

0.3 0.4 2.1 2.9 1.4

Microwave Oven

 Use a Microwave Oven ................. 65.6 57.2 1.7 1.4 5.3 7.4

 Most or All ................................... 5.0 4.2 Q Q 0.5 19.6

 About Half ................................... 13.5 12.0 0.3 0.4 0.9 13.8

 Some or Very Little ..................... 16.1 14.1 0.4 0.4 1.2 12.2

 For Defrosting, Reheating,

 or Snacks .................................... 31.0 27.0 0.9 0.5 2.7 10.6

 No Microwave Oven ..................... 7.1 6.0 0.4 0.3 0.4 17.0

Electric Coffee Maker

 Use an Electric Coffee Maker ....... 50.0 44.0 1.2 1.1 3.7 8.3

 Three or More Times a Day ........ 1.8 1.5 Q Q Q 34.0

 Two Times a Day ........................ 4.5 4.0 Q Q 0.4 22.2

 Once a Day ................................. 26.5 23.4 0.6 0.4 2.1 10.6

 A Few Times Each Week ........... 6.8 6.0 Q 0.2 0.5 16.5

 About Once a Week .................... 3.8 3.3 Q Q Q 27.4

 Less than Once a Week ............. 6.7 5.9 Q Q 0.4 17.6

 No Electric Coffee Maker .............. 22.7 19.2 0.9 0.7 2.0 10.3

Time Electric Coffee Maker is

Left On

 Turned Off Right Away ................. 13.9 12.1 0.6 0.3 0.9 13.4

 Less than 15 Minutes .................... 7.1 5.8 Q 0.3 0.8 16.5

 15 Minutes to 1 Hour .................... 19.5 17.7 0.2 0.5 1.2 13.5

 More than 1 Hour .......................... 9.5 8.4 0.2 Q 0.8 18.0

Electric Toaster

 Use a Electric Toaster .................. 26.2 22.6 1.0 0.9 1.7 10.8

 Three or More Times a Day ........ 0.8 0.6 Q Q Q 59.8

 Two Times a Day ........................ 2.0 1.7 Q Q Q 38.9

 Once a Day ................................. 6.1 5.5 0.3 Q 0.2 20.2

 A Few Times Each Week ........... 9.1 7.8 0.3 0.4 0.5 16.3

 About Once a Week .................... 3.0 2.6 Q Q 0.2 24.5

 Less than Once a Week ............. 5.3 4.3 Q Q 0.6 17.5

 No Electric Toaster ....................... 46.6 40.6 1.1 0.9 4.0 8.0

Lights

Indoor Lights Turned On:

 1 to 4 Hours per Day

 None ........................................... 6.5 5.1 0.4 Q 0.8 20.4

 1 .................................................. 17.9 14.8 0.7 0.5 1.9 10.7

 2 .................................................. 20.4 17.7 0.5 0.5 1.6 11.5

 3 .................................................. 12.4 11.0 0.3 0.4 0.8 14.1

 4 .................................................. 8.2 7.7 Q Q 0.2 21.0

 5 or More .................................... 7.4 6.9 Q Q 0.3 22.5

 Between 4 and 12 Hours per Day

 None ........................................... 19.5 16.3 0.6 0.5 2.1 13.0

 1 .................................................. 15.2 12.6 0.8 0.5 1.3 12.4

 2 .................................................. 17.0 15.1 0.3 0.5 1.0 13.7

 3 .................................................. 9.9 8.8 Q Q 0.8 16.9

 4 .................................................. 5.9 5.5 Q Q 0.3 21.0

 5 or More .................................... 5.2 4.8 Q Q 0.3 27.3

 More then 12 Hours per Day

 None ........................................... 55.3 48.3 1.3 1.4 4.2 8.2

 1 .................................................. 9.2 7.8 0.5 Q 0.8 15.4

 2 .................................................. 4.5 3.9 Q Q 0.3 26.3

 3 .................................................. 1.9 1.6 Q Q Q 42.6

 4 .................................................. 0.9 0.9 Q Q Q 54.9

 5 or More .................................... 0.9 0.7 Q Q Q 42.0

See footnotes at end of table.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC6-5a. Usage Indicators by Type of Owner-Occupied Housing Unit, 

 Million U.S. Households, 2001 (Continued)

Usage Indicators

RSE Column Factor:

Total

OwnerOccupied

Units

Type of Owner-Occupied Housing Unit

RSE

Row

Factors

Single-Family 

Apartments in Buildings With

Two to Four Units Five or More Units Mobile Homes

0.3 0.4 2.1 2.9 1.4

Outdoor Lights on All Night

 Used ............................................. 19.8 17.8 0.5 Q 1.4 13.3

 Not Used ...................................... 53.0 45.4 1.6 1.7 4.2 7.8

Gas Fireplace

Use a Gas Fireplace During Winter

Months ............................................ 3.1 3.0 Q Q Q 28.5

 Most Days ..................................... 1.2 1.1 Q Q Q 54.1

 Almost Once a Week .................... 0.9 0.9 Q Q Q 47.1

 Less Than 4 Times a Month ....... 1.0 1.0 Q Q Q 47.2

Use a Personal Computer ............ 45.7 41.1 1.3 0.9 2.4 8.6

Hours PC Turned On Each Week

 Less Than 2 Hours ....................... 7.7 6.6 0.4 Q 0.5 18.7

 2 to 15 Hours ................................ 20.4 18.4 0.4 0.4 1.0 11.8

 16 to 40 Hours .............................. 9.4 8.6 0.2 Q 0.4 16.4

 More than 40 Hours ...................... 4.3 4.0 Q Q Q 23.4

 On All The Time ............................ 4.0 3.5 Q Q 0.3 24.7

Use of PCs Turned on 16 Hours

a Week or More

 Personal Use Only ........................ 10.2 9.1 0.3 Q 0.6 15.8

 Business Use Only ....................... 1.8 1.6 Q Q Q 32.9

 Both Personal and Business ......... 5.7 5.3 Q Q Q 22.1

Business Use of PCs Turned on

16 Hours a Week or More

 Use to Telecommute ..................... 2.9 2.7 Q Q Q 35.1

 Other Business Use ...................... 4.6 4.2 Q Q 0.2 24.7

Battery Operated

Appliances/Tools

 Use Battery Operated Appliances/

 Tools ............................................. 38.9 34.8 0.8 0.8 2.4 9.2

 How Maintained When

 Not in Use

 Plugged in All The Time .............. 9.1 8.2 Q Q 0.5 18.1

 Recharged As Needed ............... 27.2 24.3 0.5 0.5 1.9 10.5

 Both Ways are Used ................... 2.6 2.4 Q Q Q 28.9

 Don’t Use Any ............................... 33.8 28.3 1.2 1.0 3.2 8.5

1 The 1.0 million households that do not heat their homes are not included in these categories.

NF = No applicable RSE row factor.

Q = Data withheld either because the Relative Standard Error (RSE) was greater than 50 percent or fewer than 10 households were sampled.

Notes: • To obtain the RSE percentage for any table cell, multiply the corresponding column and row factors. • Because of rounding, data may not sum to

totals. • See "Glossary" for definition of terms used in this report. • All temperatures listed are in degrees Fahrenheit.

Source: Energy Information Administration, Office of Energy Markets and End Use, Forms EIA-457 A, B, C of the 2001 Residential Energy Consumption

Survey.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC6-6a. Usage Indicators by Type of Rented Housing Unit, 

 Million U.S. Households, 2001

Usage Indicators

RSE Column Factor:

Total

Rented

Units

Type of Rented Housing Unit

RSE

Row

Factors

Single-Family 

Apartments in Buildings With

Two to Four Units Five or More Units Mobile Homes

0.5 0.8 1.1 0.9 2.5

Total ............................................... 34.3 10.5 7.4 15.2 1.1 6.9

Weekday Home Activities

 Home Used for Business

 Yes .............................................. 1.4 0.6 0.3 0.4 Q 30.5

 No ............................................... 32.9 9.9 7.1 14.8 1.1 7.1

 Energy-Intensive Activity

 Yes .............................................. 0.3 Q Q Q Q 48.1

 No ............................................... 34.0 10.4 7.4 15.1 1.1 6.9

 Someone Home All Day

 Yes .............................................. 15.1 5.1 3.1 6.3 0.5 9.9

 No ............................................... 19.1 5.4 4.3 8.9 0.6 8.8

Heating

 Heat Home .................................... 33.7 10.4 7.4 14.8 1.1 6.9

 Do Not Heat Home ....................... 0.6 Q Q 0.5 Q 22.6

 No Heating Equipment ................ 0.2 Q Q Q Q 88.3

 Have Equipment But

 Do Not Use It .............................. 0.4 Q Q 0.3 Q 38.5

Adequacy of Insulation

 Well Insulated ............................... 10.3 2.0 2.2 5.8 0.2 12.5

 Adequately Insulated .................... 12.8 3.6 2.4 6.5 0.4 10.4

 Poorly Insulated ............................ 10.0 4.4 2.6 2.5 0.5 11.6

 No Insulation ................................. 0.5 0.2 Q Q Q 39.8

 Don’t Know ................................... 0.7 0.2 Q 0.4 Q 38.7

Occurrences of Drafts During

Winter

 Never ............................................ 3.7 1.7 0.9 0.9 Q 19.0

 Some of the Time ......................... 3.5 1.5 1.0 0.9 Q 16.5

 Most of the ................................... 11.2 3.3 2.5 5.0 0.4 10.9

 All of the Time ............................... 12.4 2.8 2.4 6.8 0.4 11.5

 Don’t Know ................................... 3.5 1.1 0.6 1.7 Q 19.2

 Thermostat

 Heat Home .................................. 33.7 10.4 7.4 14.8 1.1 6.9

 Thermostat Available During

 Heating Season ........................ 25.2 8.3 5.7 10.3 0.9 8.7

 Programmable1

 Yes ........................................ 4.5 1.9 0.8 1.8 Q 19.4

 No ......................................... 20.7 6.4 4.9 8.5 0.9 9.4

 No Thermostat .......................... 8.4 2.1 1.6 4.5 Q 12.6

 Do Not Heat Home ..................... 0.6 Q Q 0.5 Q 22.6

Lower Winter Temperature

Settings1

 Daytime When No One is at Home

 Yes .............................................. 13.0 4.6 3.0 5.0 0.4 10.9

 No ............................................... 13.8 3.9 3.2 6.1 0.5 9.3

 Unknown ..................................... 6.8 1.9 1.1 3.6 Q 13.0

 During Sleeping Hours

 Yes .............................................. 11.6 4.0 2.4 4.8 0.3 11.4

 No ............................................... 15.6 4.7 3.9 6.4 0.6 9.0

 Unknown ..................................... 6.5 1.7 1.1 3.5 Q 13.8

See footnotes at end of table.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC6-6a. Usage Indicators by Type of Rented Housing Unit, 

 Million U.S. Households, 2001 (Continued)

Usage Indicators

RSE Column Factor:

Total

Rented

Units

Type of Rented Housing Unit

RSE

Row

Factors

Single-Family 

Apartments in Buildings With

Two to Four Units Five or More Units Mobile Homes

0.5 0.8 1.1 0.9 2.5

Daytime Winter Temperature

When Someone is at Home1

 Heat Turned On ............................ 27.2 8.7 6.3 11.3 1.0 7.7

 63 Degrees or Less .................... 1.5 0.5 0.5 0.5 Q 22.3

 64 to 66 Degrees ....................... 2.8 0.8 0.7 1.2 Q 18.3

 67 to 69 Degrees ........................ 4.6 1.8 1.0 1.7 Q 15.3

 70 Degrees ................................. 7.3 2.4 1.8 2.9 0.2 11.5

 71 to 73 Degrees ........................ 4.1 1.3 0.7 1.9 Q 16.7

 74 Degrees or More .................... 6.8 1.9 1.6 3.1 Q 14.0

 Heat Turned Off ............................ 1.2 0.3 Q 0.7 Q 31.9

 Unknown/No Answer .................... 5.2 1.4 0.9 2.8 Q 15.9

Daytime Winter Temperature

When No One is at Home1

 Heat Turned On ............................ 23.0 7.6 5.5 9.0 0.9 8.0

 63 Degrees or Less .................... 4.5 1.7 1.1 1.4 0.2 15.8

 64 to 66 Degrees ....................... 4.4 1.5 1.2 1.5 Q 15.3

 67 to 69 Degrees ........................ 4.0 1.5 0.9 1.5 Q 17.5

 70 Degrees ................................. 4.6 1.3 1.1 1.9 0.2 14.6

 71 to 73 Degrees ........................ 2.1 0.7 0.3 1.1 Q 20.2

 74 Degrees or More .................... 3.5 0.9 0.8 1.7 Q 19.9

 Heat Turned Off ............................ 5.2 1.3 0.9 2.9 Q 15.7

 Unknown/No Answer .................... 5.4 1.5 1.0 2.9 Q 15.1

Winter Temperature During

Sleeping Hours1

 Heat Turned On ............................ 24.8 8.1 5.9 9.8 0.9 7.9

 63 Degrees or Less .................... 3.5 1.4 0.8 1.2 Q 18.4

 64 to 66 Degrees ....................... 4.6 1.7 1.1 1.6 Q 14.1

 67 to 69 Degrees ........................ 4.4 1.4 1.1 1.7 Q 16.6

 70 Degrees ................................. 5.3 1.8 1.3 1.9 0.3 14.3

 71 to 73 Degrees ........................ 2.6 0.8 0.6 1.1 Q 21.7

 74 Degrees or More .................... 4.3 1.1 0.8 2.3 Q 18.8

 Heat Turned Off ............................ 3.6 0.9 0.6 2.1 Q 19.1

 Unknown/No Answer .................... 5.3 1.4 0.9 2.8 Q 15.7

Air-Conditioning

Central Air-Conditioning

 Use a Central System ................... 13.1 3.9 2.4 6.3 0.4 13.2

 All Summer ................................. 6.1 1.8 1.3 2.7 Q 16.9

 Quite a Bit ................................... 2.8 0.9 0.3 1.5 Q 22.6

 Only a Few Times ....................... 3.8 1.1 0.8 1.8 Q 22.1

 Not at All ..................................... 0.5 Q Q 0.3 Q 51.7

 No Central System ........................ 21.2 6.6 5.0 8.9 0.7 8.2

Window/Wall Air-Conditioning

 Use Window/Wall Units ................ 10.5 3.0 2.5 4.7 0.4 11.1

 All Summer ................................. 2.2 0.8 0.5 0.7 Q 22.4

 Quite a Bit ................................... 2.0 0.7 0.4 0.9 Q 23.7

 Only a Few Times ....................... 5.8 1.4 1.5 2.8 Q 15.6

 Not at All ..................................... 0.5 Q Q 0.3 Q 39.9

 No Window/Wall Units .................. 23.8 7.5 4.9 10.6 0.8 8.5

See footnotes at end of table.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC6-6a. Usage Indicators by Type of Rented Housing Unit, 

 Million U.S. Households, 2001 (Continued)

Usage Indicators

RSE Column Factor:

Total

Rented

Units

Type of Rented Housing Unit

RSE

Row

Factors

Single-Family 

Apartments in Buildings With

Two to Four Units Five or More Units Mobile Homes

0.5 0.8 1.1 0.9 2.5

Hot Water

Dishwasher Use Each Week

 Use a Dishwasher ......................... 10.9 3.3 1.7 5.8 Q 12.7

 Less Than Once a Week ............ 2.4 0.4 0.3 1.6 Q 23.9

 Once Each Week ........................ 2.0 0.6 Q 1.1 Q 27.0

 2 to 3 Times ................................ 3.0 0.9 0.5 1.6 Q 21.0

 4 to 6 Times ................................ 1.6 0.8 0.3 0.5 Q 28.7

 At Least Once Each Day ............ 2.0 0.5 0.4 1.0 Q 29.6

 No Dishwasher ............................. 23.3 7.2 5.8 9.4 0.9 7.8

Loads of Laundry Washed Each

Week

 Use a Clothes Washer .................. 15.3 8.6 2.8 3.2 0.7 10.5

 1 Load or Less ............................ 1.3 0.7 0.2 0.3 Q 25.0

 2 to 9 Loads ................................ 12.1 6.6 2.3 2.6 0.6 11.2

 10 to 15 Loads ............................ 1.5 0.9 0.3 0.2 Q 27.9

 More than 15 Loads .................... 0.5 0.4 Q Q Q 47.4

 No Washing Machine .................... 19.0 1.9 4.6 12.1 0.4 10.1

Water Temperature Setting for

Clothes Washer

 Wash Cycle

 Hot .............................................. 1.3 0.7 0.2 0.4 Q 30.0

 Warm .......................................... 8.6 4.6 1.7 2.0 0.3 13.8

 Cold ............................................ 5.5 3.3 1.0 0.8 0.4 14.8

 Rinse Cycle

 Hot .............................................. 0.3 Q Q Q Q 60.0

 Warm .......................................... 3.3 1.7 0.6 0.8 Q 18.7

 Cold ............................................ 11.7 6.7 2.1 2.3 0.6 11.9

 No Washing Machine .................... 19.0 1.9 4.6 12.1 0.4 10.1

Clothes Dryer

 Use a Clothes Dryer ..................... 13.4 7.7 2.6 2.5 0.6 11.3

 Every Time Clothes are Washed 10.9 6.1 2.2 2.1 0.5 11.6

 Some, but not All, Loads ............. 1.8 1.2 0.3 0.3 Q 30.5

 Used Infrequently ........................ 0.6 0.4 Q Q Q 38.9

 No Clothes Dryer .......................... 20.9 2.8 4.9 12.7 0.5 9.5

Cooking

Number of Hot Meals Cooked in

the Home

 3 or More Times a Day ................. 2.9 1.2 0.5 1.1 Q 20.7

 2 Times a Day ............................... 8.3 3.1 1.9 3.0 0.4 13.0

 Once a Day ................................... 12.0 3.4 2.6 5.6 0.3 11.6

 A Few Times Each Week ............. 8.1 2.2 1.8 3.8 0.2 12.0

 About Once a Week ...................... 1.5 0.4 0.3 0.8 Q 29.5

 Less Than Once a Week .............. 1.0 Q 0.3 0.5 Q 29.3

 No Hot Meals Cooked ................... 0.6 Q Q 0.4 Q 51.3

Conventional Oven

 Use a Conventional Oven ............. 32.7 9.9 7.1 14.6 1.1 7.1

 More Than Once a Day .............. 3.1 0.9 0.8 1.3 Q 17.4

 Once a Day ................................. 5.9 2.0 1.5 2.3 Q 13.6

 Between Once a Day and

 Once a Week .............................. 9.4 3.2 2.0 3.9 0.4 13.0

 Once a Week .............................. 4.9 1.3 1.3 2.2 Q 15.7

 Less Than Once a Week ............ 9.4 2.5 1.6 4.9 0.4 12.1

 Do Not Use ................................... 1.6 0.6 0.3 0.7 Q 29.3

See footnotes at end of table.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC6-6a. Usage Indicators by Type of Rented Housing Unit, 

 Million U.S. Households, 2001 (Continued)

Usage Indicators

RSE Column Factor:

Total

Rented

Units

Type of Rented Housing Unit

RSE

Row

Factors

Single-Family 

Apartments in Buildings With

Two to Four Units Five or More Units Mobile Homes

0.5 0.8 1.1 0.9 2.5

Microwave Oven

 Use a Microwave Oven ................. 26.5 8.7 5.9 11.0 0.9 7.8

 Most or All ................................... 3.1 1.0 0.6 1.5 Q 18.3

 About Half ................................... 5.8 1.9 1.4 2.3 0.2 15.6

 Some or Very Little ..................... 6.4 2.3 1.4 2.4 0.3 14.6

 For Defrosting, Reheating,

 or Snacks .................................... 11.2 3.4 2.5 4.9 0.4 10.9

 No Microwave Oven ..................... 7.8 1.8 1.5 4.2 0.3 14.0

Electric Coffee Maker

 Use an Electric Coffee Maker ....... 15.5 5.8 3.2 6.2 0.4 9.4

 Three or More Times a Day ........ 0.6 0.3 Q 0.2 Q 41.8

 Two Times a Day ........................ 1.5 0.8 0.4 0.3 Q 26.2

 Once a Day ................................. 7.1 2.5 1.4 3.0 0.2 12.8

 A Few Times Each Week ........... 2.7 1.2 0.5 1.0 Q 20.8

 About Once a Week .................... 1.4 0.4 0.4 0.6 Q 26.6

 Less than Once a Week ............. 2.3 0.7 0.5 1.1 Q 23.7

 No Electric Coffee Maker .............. 18.8 4.7 4.2 9.1 0.7 8.4

Time Electric Coffee Maker is

Left On

 Turned Off Right Away ................. 4.9 1.6 0.9 2.2 Q 15.4

 Less than 15 Minutes .................... 3.0 1.0 0.6 1.4 Q 18.3

 15 Minutes to 1 Hour .................... 5.0 2.0 1.2 1.7 Q 15.2

 More than 1 Hour .......................... 2.6 1.2 0.4 0.9 Q 20.7

Electric Toaster

 Use a Electric Toaster .................. 9.9 3.3 1.7 4.7 0.2 13.2

 Three or More Times a Day ........ 0.3 Q Q Q Q 60.5

 Two Times a Day ........................ 0.7 0.3 Q 0.3 Q 34.6

 Once a Day ................................. 2.1 0.7 0.4 0.9 Q 24.8

 A Few Times Each Week ........... 2.9 1.0 0.6 1.2 Q 19.9

 About Once a Week .................... 1.3 0.2 0.2 0.8 Q 26.7

 Less than Once a Week ............. 2.6 1.1 0.3 1.2 Q 20.7

 No Electric Toaster ....................... 24.4 7.2 5.7 10.6 0.9 7.9

Lights

Indoor Lights Turned On:

 1 to 4 Hours per Day

 None ........................................... 3.7 1.2 0.9 1.5 Q 19.6

 1 .................................................. 12.3 2.9 3.0 6.0 0.4 9.7

 2 .................................................. 10.3 3.2 1.8 5.0 0.4 12.6

 3 .................................................. 4.2 1.6 0.8 1.7 Q 15.6

 4 .................................................. 2.3 0.9 0.6 0.7 Q 21.9

 5 or More .................................... 1.4 0.7 0.3 0.3 Q 27.4

 Between 4 and 12 Hours per Day

 None ........................................... 10.7 3.0 2.5 4.9 0.4 10.6

 1 .................................................. 9.9 2.4 2.3 5.0 Q 10.6

 2 .................................................. 8.5 3.1 1.5 3.6 0.3 12.6

 3 .................................................. 2.8 0.9 0.7 1.1 Q 20.8

 4 .................................................. 1.2 0.6 0.3 0.3 Q 24.9

 5 or More .................................... 1.1 0.5 0.2 0.3 Q 33.7

 More then 12 Hours per Day

 None ........................................... 25.8 7.4 5.4 12.3 0.7 7.4

 1 .................................................. 5.2 1.9 1.1 2.2 Q 16.0

 2 .................................................. 2.3 1.0 0.5 0.6 Q 24.6

 3 .................................................. 0.5 Q 0.3 Q Q 61.0

 4 .................................................. 0.3 Q Q Q Q 50.5

 5 or More .................................... Q Q Q Q Q NF

See footnotes at end of table.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC6-6a. Usage Indicators by Type of Rented Housing Unit, 

 Million U.S. Households, 2001 (Continued)

Usage Indicators

RSE Column Factor:

Total

Rented

Units

Type of Rented Housing Unit

RSE

Row

Factors

Single-Family 

Apartments in Buildings With

Two to Four Units Five or More Units Mobile Homes

0.5 0.8 1.1 0.9 2.5

Outdoor Lights on All Night

 Used ............................................. 4.7 2.4 0.9 1.2 0.2 15.2

 Not Used ...................................... 29.6 8.1 6.5 14.1 0.9 7.4

Gas Fireplace

Use a Gas Fireplace During Winter

Months ............................................ 0.5 Q Q Q Q 56.8

 Most Days ..................................... Q Q Q Q Q NF

 Almost Once a Week .................... Q Q Q Q Q NF

 Less Than 4 Times a Month ....... Q Q Q Q Q NF

Use a Personal Computer ............ 14.3 5.3 2.9 5.9 0.3 10.7

Hours PC Turned On Each Week

 Less Than 2 Hours ....................... 2.7 0.8 0.6 1.1 Q 19.4

 2 to 15 Hours ................................ 5.9 2.3 1.1 2.5 Q 14.0

 16 to 40 Hours .............................. 2.7 1.0 0.6 1.1 Q 21.7

 More than 40 Hours ...................... 1.4 0.6 0.2 0.5 Q 30.5

 On All The Time ............................ 1.6 0.5 0.4 0.7 Q 26.1

Use of PCs Turned on 16 Hours

a Week or More

 Personal Use Only ........................ 3.8 1.4 0.8 1.5 Q 17.7

 Business Use Only ....................... 0.4 Q Q Q Q 47.6

 Both Personal and Business ......... 1.6 0.6 0.3 0.7 Q 25.5

Business Use of PCs Turned on

16 Hours a Week or More

 Use to Telecommute ..................... 0.7 0.3 Q 0.2 Q 51.1

 Other Business Use ...................... 1.3 0.4 0.2 0.7 Q 29.2

Battery Operated

Appliances/Tools

 Use Battery Operated Appliances/

 Tools ............................................. 8.8 4.0 1.8 2.9 Q 12.3

 How Maintained When

 Not in Use

 Plugged in All The Time .............. 1.7 0.6 0.3 0.8 Q 24.0

 Recharged As Needed ............... 6.5 3.0 1.5 2.0 Q 14.2

 Both Ways are Used ................... 0.6 0.3 Q Q Q 38.2

 Don’t Use Any ............................... 25.5 6.5 5.6 12.3 1.0 7.9

1 The 1.0 million households that do not heat their homes are not included in these categories.

NF = No applicable RSE row factor.

Q = Data withheld either because the Relative Standard Error (RSE) was greater than 50 percent or fewer than 10 households were sampled.

Notes: • To obtain the RSE percentage for any table cell, multiply the corresponding column and row factors. • Because of rounding, data may not sum to

totals. • See "Glossary" for definition of terms used in this report. • All temperatures listed are in degrees Fahrenheit.

Source: Energy Information Administration, Office of Energy Markets and End Use, Forms EIA-457 A, B, C of the 2001 Residential Energy Consumption

Survey.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC6-7a. Usage Indicators by Four Most Populated States, 

 Million U.S. Households, 2001

Usage Indicators

RSE Column Factor:

Total

Four Most Populated States

RSE

Row

Factors

New York California Texas Florida

0.4 1.1 1.0 1.3 1.6

Total .............................................................. 107.0 7.1 12.3 7.7 6.3 NE

Weekday Home Activities

 Home Used for Business

 Yes ............................................................ 7.6 0.4 0.9 0.4 0.3 19.3

 No .............................................................. 99.4 6.7 11.5 7.3 6.0 1.4

 Energy-Intensive Activity

 Yes ............................................................ 1.7 0.1 0.1 Q Q 33.9

 No .............................................................. 105.2 6.9 12.2 7.6 6.3 NE

 Someone Home All Day

 Yes ............................................................ 53.0 3.5 6.4 3.8 3.1 3.9

 No .............................................................. 53.9 3.6 5.9 3.8 3.2 3.9

Heating

 Heat Home .................................................. 106.0 7.1 12.0 7.7 6.2 0.6

 Do Not Heat Home ...................................... 1.0 Q 0.3 Q 0.1 21.5

 No Heating Equipment .............................. 0.5 Q 0.1 Q Q 44.7

 Have Equipment But

 Do Not Use It ............................................. 0.4 Q 0.2 Q Q 35.6

Adequacy of Insulation

 Well Insulated .............................................. 42.6 2.9 3.3 2.7 2.2 6.6

 Adequately Insulated ................................... 43.1 2.8 5.3 3.4 3.1 6.5

 Poorly Insulated ........................................... 19.4 1.3 3.2 1.4 1.0 8.5

 No Insulation ............................................... 0.9 Q 0.2 Q Q 29.6

 Don’t Know .................................................. 0.9 Q 0.3 Q Q 32.6

Occurrences of Drafts During Winter

 Never ........................................................... 5.9 Q 0.6 0.5 0.2 20.3

 Some of the Time ........................................ 6.4 0.5 1.0 0.4 0.3 13.5

 Most of the .................................................. 34.6 2.5 4.5 2.3 1.3 7.4

 All of the Time ............................................. 55.3 3.4 5.4 4.0 4.3 4.8

 Don’t Know .................................................. 4.7 0.3 0.8 0.5 0.3 16.0

 Thermostat

 Heat Home ................................................ 106.0 7.1 12.0 7.7 6.2 0.6

 Thermostat Available During

 Heating Season ....................................... 91.5 4.2 9.5 6.7 5.6 2.5

 Programmable1

 Yes ...................................................... 25.1 2.1 4.4 1.5 1.1 14.8

 No ........................................................ 66.4 2.1 5.1 5.2 4.6 6.4

 No Thermostat ......................................... 14.5 2.9 2.5 0.9 0.5 10.4

 Do Not Heat Home .................................... 1.0 Q 0.3 Q 0.1 21.5

Lower Winter Temperature Settings1

 Daytime When No One is at Home

 Yes ............................................................ 47.2 2.6 7.2 2.9 2.5 5.1

 No .............................................................. 48.5 3.7 2.5 3.9 3.1 5.1

 Unknown ................................................... 10.3 0.8 2.3 0.9 0.5 11.6

 During Sleeping Hours

 Yes ............................................................ 45.7 3.2 7.0 2.9 2.1 5.0

 No .............................................................. 51.1 3.1 3.1 4.0 3.5 4.0

 Unknown ................................................... 9.2 0.7 2.0 0.8 0.5 11.7

See footnotes at end of table.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC6-7a. Usage Indicators by Four Most Populated States, 

 Million U.S. Households, 2001 (Continued)

Usage Indicators

RSE Column Factor:

Total

Four Most Populated States

RSE

Row

Factors

New York California Texas Florida

0.4 1.1 1.0 1.3 1.6

Daytime Winter Temperature When

Someone is at Home1

 Heat Turned On ........................................... 96.8 6.4 9.9 6.9 5.7 1.8

 63 Degrees or Less ................................... 3.9 0.3 0.8 Q 0.1 19.2

 64 to 66 Degrees ...................................... 8.4 0.9 1.5 0.2 0.3 16.7

 67 to 69 Degrees ....................................... 23.6 1.9 2.4 1.0 0.7 9.0

 70 Degrees ................................................ 25.7 1.5 2.8 1.6 1.4 10.5

 71 to 73 Degrees ....................................... 16.5 0.9 1.0 1.1 1.0 13.7

 74 Degrees or More .................................. 18.6 0.8 1.5 2.9 2.0 8.9

 Heat Turned Off ........................................... 2.0 Q 1.1 0.2 Q 20.8

 Unknown/No Answer ................................... 7.2 0.7 1.0 0.6 0.2 12.6

Daytime Winter Temperature When No

One is at Home1

 Heat Turned On ........................................... 87.6 6.3 5.7 6.5 5.1 2.6

 63 Degrees or Less ................................... 17.7 1.4 2.3 0.7 1.0 13.5

 64 to 66 Degrees ...................................... 17.2 1.7 1.4 0.8 0.8 12.1

 67 to 69 Degrees ....................................... 19.1 1.3 0.9 1.1 0.7 12.2

 70 Degrees ................................................ 15.1 1.0 0.6 1.4 0.8 10.8

 71 to 73 Degrees ....................................... 8.7 0.5 0.3 0.7 0.4 21.6

 74 Degrees or More .................................. 9.8 0.5 0.2 1.7 1.4 13.5

 Heat Turned Off ........................................... 10.5 Q 5.2 0.6 0.8 14.3

 Unknown/No Answer ................................... 8.0 0.8 1.2 0.7 0.3 14.3

Winter Temperature During Sleeping

Hours1

 Heat Turned On ........................................... 91.8 6.3 6.8 6.8 5.5 1.8

 63 Degrees or Less ................................... 15.4 1.5 2.5 0.6 0.6 15.2

 64 to 66 Degrees ...................................... 17.4 1.5 1.7 0.8 0.9 10.0

 67 to 69 Degrees ....................................... 21.0 1.5 1.1 1.2 0.5 7.7

 70 Degrees ................................................ 17.4 0.9 1.0 1.5 1.2 9.7

 71 to 73 Degrees ....................................... 9.5 0.6 0.2 0.8 0.9 18.3

 74 Degrees or More .................................. 11.1 0.4 0.3 2.0 1.4 15.0

 Heat Turned Off ........................................... 7.1 Q 4.2 0.3 0.5 15.2

 Unknown/No Answer ................................... 7.1 0.7 1.0 0.6 0.2 14.0

Air-Conditioning

Central Air-Conditioning

 Use a Central System ................................. 58.6 1.3 4.5 6.2 5.9 6.3

 All Summer ................................................ 28.4 0.2 0.3 4.7 3.9 9.1

 Quite a Bit .................................................. 12.1 0.4 0.8 1.1 1.2 15.9

 Only a Few Times ..................................... 16.8 0.7 2.9 0.4 0.5 14.6

 Not at All .................................................... 1.4 Q 0.6 Q 0.2 24.1

 No Central System ...................................... 48.4 5.8 7.9 1.5 0.5 9.5

Window/Wall Air-Conditioning

 Use Window/Wall Units ............................... 25.1 3.6 1.6 1.3 0.5 12.6

 All Summer ................................................ 4.9 0.4 0.1 0.7 Q 27.0

 Quite a Bit .................................................. 5.2 0.5 0.2 0.2 Q 27.9

 Only a Few Times ..................................... 14.1 2.4 1.0 0.4 0.4 11.6

 Not at All .................................................... 0.9 0.1 0.3 Q Q 25.7

 No Window/Wall Units ................................. 81.9 3.5 10.7 6.4 5.8 3.0

See footnotes at end of table.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC6-7a. Usage Indicators by Four Most Populated States, 

 Million U.S. Households, 2001 (Continued)

Usage Indicators

RSE Column Factor:

Total

Four Most Populated States

RSE

Row

Factors

New York California Texas Florida

0.4 1.1 1.0 1.3 1.6

Hot Water

Dishwasher Use Each Week

 Use a Dishwasher ....................................... 56.7 2.8 6.8 4.7 3.6 5.6

 Less Than Once a Week ........................... 9.4 0.7 1.4 0.8 0.7 13.8

 Once Each Week ...................................... 7.5 0.4 1.2 0.4 0.4 17.4

 2 to 3 Times ............................................... 17.8 0.7 2.2 1.6 0.9 13.1

 4 to 6 Times ............................................... 11.7 0.4 1.3 0.9 0.9 14.7

 At Least Once Each Day ........................... 10.4 0.6 0.8 0.9 0.6 17.9

 No Dishwasher ............................................ 50.3 4.3 5.5 3.0 2.8 6.3

Loads of Laundry Washed Each Week

 Use a Clothes Washer ................................ 84.1 4.5 8.4 5.9 5.2 3.8

 1 Load or Less ........................................... 6.8 0.4 1.0 0.2 0.6 13.4

 2 to 9 Loads ............................................... 65.1 3.5 6.4 4.6 4.0 4.2

 10 to 15 Loads ........................................... 9.6 0.5 0.8 0.9 0.5 10.2

 More than 15 Loads .................................. 2.7 0.1 0.2 0.2 Q 33.2

 No Washing Machine .................................. 22.9 2.5 3.9 1.8 1.1 11.1

Water Temperature Setting for Clothes

Washer

 Wash Cycle

 Hot ............................................................. 6.2 0.4 0.7 0.4 0.3 20.4

 Warm ......................................................... 49.7 3.0 5.0 3.5 2.3 5.9

 Cold ........................................................... 28.2 1.2 2.7 2.0 2.6 6.7

 Rinse Cycle

 Hot ............................................................. 1.4 Q 0.1 0.1 Q 28.5

 Warm ......................................................... 16.6 0.8 1.6 1.2 1.0 15.3

 Cold ........................................................... 66.1 3.6 6.7 4.6 4.2 4.4

 No Washing Machine .................................. 22.9 2.5 3.9 1.8 1.1 11.1

Clothes Dryer

 Use a Clothes Dryer .................................... 78.8 3.8 8.0 5.7 4.9 4.5

 Every Time Clothes are Washed ............... 63.5 2.6 6.5 4.8 4.1 5.2

 Some, but not All, Loads ........................... 12.7 1.0 1.3 0.8 0.7 9.2

 Used Infrequently ...................................... 2.7 0.2 0.2 Q Q 30.2

 No Clothes Dryer ......................................... 28.2 3.3 4.3 2.0 1.4 10.1

Cooking

Number of Hot Meals Cooked in the Home

 3 or More Times a Day ................................ 7.5 0.4 0.9 0.7 0.3 22.5

 2 Times a Day ............................................. 26.8 1.7 3.3 1.8 1.5 7.6

 Once a Day ................................................. 43.3 2.8 4.6 2.8 2.3 6.2

 A Few Times Each Week ............................ 21.7 1.8 2.8 1.8 1.7 9.7

 About Once a Week .................................... 4.0 0.3 0.4 0.3 0.3 15.1

 Less Than Once a Week ............................. 2.4 0.1 0.1 0.3 Q 28.7

 No Hot Meals Cooked ................................. 1.2 Q 0.2 Q 0.1 35.0

Conventional Oven

 Use a Conventional Oven ........................... 99.4 6.8 11.1 6.4 5.9 1.7

 More Than Once a Day ............................. 8.6 0.7 0.7 0.5 0.6 13.6

 Once a Day ............................................... 17.4 1.2 1.5 1.1 0.9 11.6

 Between Once a Day and

 Once a Week ............................................. 33.1 1.8 3.5 2.1 2.0 7.1

 Once a Week ............................................. 15.6 1.2 1.7 1.2 1.2 9.0

 Less Than Once a Week ........................... 24.6 2.0 3.7 1.5 1.3 11.1

 Do Not Use .................................................. 7.6 0.2 1.2 1.2 0.4 19.9

See footnotes at end of table.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC6-7a. Usage Indicators by Four Most Populated States, 

 Million U.S. Households, 2001 (Continued)

Usage Indicators

RSE Column Factor:

Total

Four Most Populated States

RSE

Row

Factors

New York California Texas Florida

0.4 1.1 1.0 1.3 1.6

Microwave Oven

 Use a Microwave Oven ............................... 92.1 5.2 10.0 6.7 5.4 3.0

 Most or All ................................................. 8.2 0.3 1.3 0.7 0.6 15.0

 About Half .................................................. 19.3 0.9 2.4 1.2 1.1 11.4

 Some or Very Little .................................... 22.4 1.3 2.5 1.9 1.2 10.5

 For Defrosting, Reheating,

 or Snacks .................................................. 42.2 2.6 3.8 2.9 2.5 6.8

 No Microwave Oven .................................... 14.8 1.9 2.3 1.0 0.9 14.6

Electric Coffee Maker

 Use an Electric Coffee Maker ...................... 65.5 4.4 7.0 4.5 3.1 3.7

 Three or More Times a Day ...................... 2.4 0.2 0.1 Q Q 33.1

 Two Times a Day ...................................... 5.9 0.5 0.5 0.4 0.2 19.5

 Once a Day ............................................... 33.6 2.1 3.4 2.8 1.8 6.5

 A Few Times Each Week .......................... 9.4 0.6 1.2 0.5 0.5 13.1

 About Once a Week .................................. 5.2 0.4 0.5 0.3 0.3 15.1

 Less than Once a Week ............................ 9.0 0.6 1.1 0.4 0.2 13.6

 No Electric Coffee Maker ............................ 41.5 2.7 5.4 3.1 3.2 5.0

Time Electric Coffee Maker is Left On

 Turned Off Right Away ................................ 18.8 1.7 2.3 1.0 0.8 9.8

 Less than 15 Minutes .................................. 10.0 0.9 1.2 0.5 0.6 13.1

 15 Minutes to 1 Hour ................................... 24.6 1.1 2.0 2.2 1.3 8.6

 More than 1 Hour ........................................ 12.1 0.6 1.4 0.8 0.5 16.8

Electric Toaster

 Use a Electric Toaster ................................. 36.1 3.4 4.5 3.1 2.4 6.4

 Three or More Times a Day ...................... 1.0 0.1 Q 0.1 Q 33.5

 Two Times a Day ...................................... 2.7 0.2 0.3 Q 0.2 25.0

 Once a Day ............................................... 8.2 0.8 1.1 0.7 0.6 14.1

 A Few Times Each Week .......................... 11.9 1.1 1.3 1.2 0.9 13.1

 About Once a Week .................................. 4.3 0.4 0.8 0.3 0.3 17.8

 Less than Once a Week ............................ 7.9 0.7 1.0 0.7 0.4 12.1

 No Electric Toaster ...................................... 70.9 3.7 7.8 4.5 3.9 4.2

Lights

Indoor Lights Turned On:

 1 to 4 Hours per Day

 None .......................................................... 10.2 0.7 1.0 0.5 0.7 14.6

 1 ................................................................ 30.1 2.0 3.0 2.1 1.7 7.2

 2 ................................................................ 30.7 2.2 4.3 2.5 1.4 7.3

 3 ................................................................ 16.6 1.0 2.0 1.0 1.3 10.5

 4 ................................................................ 10.5 0.5 1.1 0.7 0.7 16.0

 5 or More ................................................... 8.8 0.6 1.0 1.0 Q 17.8

 Between 4 and 12 Hours per Day

 None .......................................................... 30.2 2.3 3.4 1.6 1.9 7.7

 1 ................................................................ 25.2 1.8 3.7 2.3 1.5 7.4

 2 ................................................................ 25.5 1.6 3.1 1.8 1.2 7.0

 3 ................................................................ 12.7 0.6 1.1 0.7 1.0 13.8

 4 ................................................................ 7.2 0.3 0.5 0.6 0.4 18.0

 5 or More ................................................... 6.2 0.4 0.5 0.7 0.2 19.6

 More then 12 Hours per Day

 None .......................................................... 81.1 5.4 10.5 5.2 4.5 3.4

 1 ................................................................ 14.4 1.1 1.4 1.2 1.1 11.9

 2 ................................................................ 6.8 0.4 0.3 0.8 0.5 19.9

 3 ................................................................ 2.4 Q 0.2 0.2 0.1 21.6

 4 ................................................................ 1.3 0.1 Q 0.2 Q 27.0

 5 or More ................................................... 1.1 Q Q Q 0.2 20.1

See footnotes at end of table.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC6-7a. Usage Indicators by Four Most Populated States, 

 Million U.S. Households, 2001 (Continued)

Usage Indicators

RSE Column Factor:

Total

Four Most Populated States

RSE

Row

Factors

New York California Texas Florida

0.4 1.1 1.0 1.3 1.6

Outdoor Lights on All Night

 Used ............................................................ 24.5 1.1 2.5 2.6 1.8 9.3

 Not Used .................................................... 82.5 6.0 9.8 5.1 4.5 2.9

Gas Fireplace

Use a Gas Fireplace During Winter Months .. 3.7 0.4 0.6 0.4 0.1 16.2

 Most Days ................................................... 1.3 Q Q Q Q 44.2

 Almost Once a Week ................................... 1.1 Q 0.1 0.1 Q 31.4

 Less Than 4 Times a Month ...................... 1.2 Q 0.3 0.2 Q 19.8

Use a Personal Computer ........................... 60.0 3.4 7.9 4.1 3.8 4.4

Hours PC Turned On Each Week

 Less Than 2 Hours ...................................... 10.3 0.7 1.3 0.7 1.0 13.5

 2 to 15 Hours ............................................... 26.3 1.5 3.6 1.8 1.3 7.8

 16 to 40 Hours ............................................. 12.2 0.7 1.8 0.7 0.6 13.4

 More than 40 Hours ..................................... 5.7 0.3 0.6 0.5 0.5 17.8

 On All The Time .......................................... 5.6 0.2 0.6 0.5 0.4 25.3

Use of PCs Turned on 16 Hours

a Week or More

 Personal Use Only ...................................... 14.0 0.5 1.7 1.0 0.7 14.5

 Business Use Only ...................................... 2.1 Q 0.3 0.2 0.1 21.1

 Both Personal and Business ....................... 7.3 0.6 1.0 0.4 0.7 19.1

Business Use of PCs Turned on 16 Hours

a Week or More

 Use to Telecommute ................................... 3.6 0.3 0.4 0.3 Q 21.3

 Other Business Use .................................... 5.8 0.4 0.9 0.3 0.4 17.9

Battery Operated Appliances/Tools

 Use Battery Operated Appliances/

 Tools ............................................................ 47.7 3.1 4.6 3.4 2.8 6.4

 How Maintained When

 Not in Use

 Plugged in All The Time ............................ 10.8 0.8 1.0 0.9 0.7 17.7

 Recharged As Needed .............................. 33.8 2.0 3.3 2.3 2.0 8.1

 Both Ways are Used ................................. 3.1 0.4 0.3 0.2 0.1 24.1

 Don’t Use Any ............................................. 59.3 3.9 7.7 4.3 3.6 4.8

1 The 1.0 million households that do not heat their homes are not included in these categories.

NE = RSE row factor not estimated because RSE’s for all statistics in this row are between 0.0 and 1.0 percent.

Q = Data withheld either because the Relative Standard Error (RSE) was greater than 50 percent or fewer than 10 households were sampled.

Notes: • To obtain the RSE percentage for any table cell, multiply the corresponding column and row factors. • Because of rounding, data may not sum to totals. 

• See "Glossary" for definition of terms used in this report. • All temperatures listed are in degrees Fahrenheit.

Source: Energy Information Administration, Office of Energy Markets and End Use, Forms EIA-457 A, B, C of the 2001 Residential Energy Consumption Survey.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC6-8a. Usage Indicators by Urban/Rural Location, 

 Million U.S. Households, 2001

Usage Indicators

RSE Column Factor:

Total

Urban/Rural Location1

RSE

Row

Factors

City Town Suburbs Rural

0.5 0.8 1.4 1.3 1.4

Total .............................................................. 107.0 49.9 18.0 21.2 17.9 4.1

Weekday Home Activities

 Home Used for Business

 Yes ............................................................ 7.6 2.7 1.2 1.9 1.8 11.7

 No .............................................................. 99.4 47.2 16.8 19.3 16.1 4.3

 Energy-Intensive Activity

 Yes ............................................................ 1.7 0.6 0.3 0.2 0.6 22.8

 No .............................................................. 105.2 49.2 17.7 21.0 17.3 4.1

 Someone Home All Day

 Yes ............................................................ 53.0 23.8 8.9 10.7 9.7 4.5

 No .............................................................. 53.9 26.0 9.1 10.6 8.2 4.9

Heating

 Heat Home .................................................. 106.0 49.1 18.0 21.2 17.8 4.1

 Do Not Heat Home ...................................... 1.0 0.7 0.1 0.1 0.1 25.8

 No Heating Equipment .............................. 0.5 0.4 0.1 Q 0.1 33.0

 Have Equipment But

 Do Not Use It ............................................. 0.4 0.3 Q Q Q 33.7

Adequacy of Insulation

 Well Insulated .............................................. 42.6 18.2 6.9 8.8 8.7 5.4

 Adequately Insulated ................................... 43.1 20.5 6.9 9.4 6.3 5.5

 Poorly Insulated ........................................... 19.4 10.1 3.9 2.8 2.6 7.8

 No Insulation ............................................... 0.9 0.4 0.2 0.1 0.1 27.7

 Don’t Know .................................................. 0.9 0.6 0.2 Q Q 29.4

Occurrences of Drafts During Winter

 Never ........................................................... 5.9 3.0 1.3 1.0 0.6 13.5

 Some of the Time ........................................ 6.4 3.3 1.1 0.9 1.1 11.8

 Most of the .................................................. 34.6 16.4 6.1 6.4 5.8 6.1

 All of the Time ............................................. 55.3 24.3 8.8 12.2 9.9 5.0

 Don’t Know .................................................. 4.7 2.9 0.6 0.8 0.5 14.1

 Thermostat

 Heat Home ................................................ 106.0 49.1 18.0 21.2 17.8 4.1

 Thermostat Available During

 Heating Season ....................................... 91.5 40.7 16.0 19.6 15.2 4.4

 Programmable2

 Yes ...................................................... 25.1 11.2 3.9 6.9 3.0 7.8

 No ........................................................ 66.4 29.4 12.1 12.7 12.2 5.1

 No Thermostat ......................................... 14.5 8.4 2.0 1.5 2.5 9.9

 Do Not Heat Home .................................... 1.0 0.7 0.1 0.1 0.1 25.8

Lower Winter Temperature Settings2

 Daytime When No One is at Home

 Yes ............................................................ 47.2 20.8 8.7 10.4 7.3 5.0

 No .............................................................. 48.5 22.0 7.9 9.2 9.3 5.6

 Unknown ................................................... 10.3 6.3 1.4 1.6 1.1 11.0

 During Sleeping Hours

 Yes ............................................................ 45.7 20.2 8.4 9.7 7.5 5.3

 No .............................................................. 51.1 23.2 8.4 10.3 9.3 4.9

 Unknown ................................................... 9.2 5.8 1.2 1.2 1.0 12.3

See footnotes at end of table.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC6-8a. Usage Indicators by Urban/Rural Location, 

 Million U.S. Households, 2001 (Continued)

Usage Indicators

RSE Column Factor:

Total

Urban/Rural Location1

RSE

Row

Factors

City Town Suburbs Rural

0.5 0.8 1.4 1.3 1.4

Daytime Winter Temperature When

Someone is at Home2

 Heat Turned On ........................................... 96.8 43.3 16.7 19.9 16.8 4.3

 63 Degrees or Less ................................... 3.9 2.0 0.8 0.5 0.6 14.3

 64 to 66 Degrees ...................................... 8.4 4.2 1.4 1.4 1.3 11.0

 67 to 69 Degrees ....................................... 23.6 9.2 4.0 5.9 4.6 6.6

 70 Degrees ................................................ 25.7 11.6 4.8 4.9 4.3 6.6

 71 to 73 Degrees ....................................... 16.5 7.0 2.8 3.6 3.0 8.4

 74 Degrees or More .................................. 18.6 9.3 2.8 3.5 2.9 7.8

 Heat Turned Off ........................................... 2.0 1.2 0.4 0.3 0.1 21.6

 Unknown/No Answer ................................... 7.2 4.5 0.9 0.9 0.9 13.9

Daytime Winter Temperature When No

One is at Home2

 Heat Turned On ........................................... 87.6 37.8 15.7 18.1 16.0 4.0

 63 Degrees or Less ................................... 17.7 7.7 3.6 3.2 3.2 8.7

 64 to 66 Degrees ...................................... 17.2 6.9 3.6 3.8 2.9 7.8

 67 to 69 Degrees ....................................... 19.1 7.9 2.9 4.6 3.7 7.9

 70 Degrees ................................................ 15.1 6.6 2.9 2.8 2.8 8.5

 71 to 73 Degrees ....................................... 8.7 3.7 1.3 1.8 1.9 10.5

 74 Degrees or More .................................. 9.8 4.9 1.4 1.9 1.5 11.0

 Heat Turned Off ........................................... 10.5 6.5 1.3 1.8 0.9 12.5

 Unknown/No Answer ................................... 8.0 4.8 1.0 1.2 1.0 11.9

Winter Temperature During Sleeping

Hours2

 Heat Turned On ........................................... 91.8 39.8 16.3 19.1 16.5 4.3

 63 Degrees or Less ................................... 15.4 6.7 3.3 2.7 2.8 9.0

 64 to 66 Degrees ...................................... 17.4 7.2 3.5 3.4 3.2 7.7

 67 to 69 Degrees ....................................... 21.0 8.2 3.5 5.2 4.1 6.9

 70 Degrees ................................................ 17.4 7.6 3.0 3.8 3.1 7.7

 71 to 73 Degrees ....................................... 9.5 4.4 1.4 1.9 1.8 11.2

 74 Degrees or More .................................. 11.1 5.8 1.5 2.2 1.6 10.4

 Heat Turned Off ........................................... 7.1 4.7 0.8 1.1 0.4 13.4

 Unknown/No Answer ................................... 7.1 4.5 0.9 0.9 0.8 13.7

Air-Conditioning

Central Air-Conditioning

 Use a Central System ................................. 58.6 24.3 8.7 16.1 9.6 5.1

 All Summer ................................................ 28.4 11.7 3.9 7.8 5.0 7.2

 Quite a Bit .................................................. 12.1 4.5 1.7 3.9 1.9 9.1

 Only a Few Times ..................................... 16.8 7.2 3.1 4.1 2.4 9.0

 Not at All .................................................... 1.4 0.8 Q 0.3 0.2 24.1

 No Central System ...................................... 48.4 25.6 9.3 5.1 8.3 5.6

Window/Wall Air-Conditioning

 Use Window/Wall Units ............................... 25.1 12.9 5.0 3.1 4.1 7.2

 All Summer ................................................ 4.9 2.5 1.1 0.4 0.9 13.9

 Quite a Bit .................................................. 5.2 2.8 0.8 0.6 1.0 14.4

 Only a Few Times ..................................... 14.1 7.0 3.0 2.0 2.1 8.2

 Not at All .................................................... 0.9 0.6 Q 0.1 0.1 28.4

 No Window/Wall Units ................................. 81.9 36.9 13.0 18.2 13.8 3.9

See footnotes at end of table.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC6-8a. Usage Indicators by Urban/Rural Location, 

 Million U.S. Households, 2001 (Continued)

Usage Indicators

RSE Column Factor:

Total

Urban/Rural Location1

RSE

Row

Factors

City Town Suburbs Rural

0.5 0.8 1.4 1.3 1.4

Hot Water

Dishwasher Use Each Week

 Use a Dishwasher ....................................... 56.7 22.7 8.6 15.7 9.6 4.7

 Less Than Once a Week ........................... 9.4 4.2 1.4 2.6 1.2 9.5

 Once Each Week ...................................... 7.5 3.5 1.2 1.7 1.1 11.8

 2 to 3 Times ............................................... 17.8 7.5 2.5 5.0 2.9 8.0

 4 to 6 Times ............................................... 11.7 3.9 2.0 3.7 2.1 9.3

 At Least Once Each Day ........................... 10.4 3.6 1.6 2.8 2.4 9.5

 No Dishwasher ............................................ 50.3 27.1 9.4 5.5 8.3 5.6

Loads of Laundry Washed Each Week

 Use a Clothes Washer ................................ 84.1 34.5 14.6 18.6 16.4 4.0

 1 Load or Less ........................................... 6.8 3.4 1.4 1.0 1.1 11.3

 2 to 9 Loads ............................................... 65.1 26.4 11.2 15.1 12.4 4.5

 10 to 15 Loads ........................................... 9.6 3.9 1.5 2.0 2.2 9.3

 More than 15 Loads .................................. 2.7 0.8 0.6 0.5 0.8 17.7

 No Washing Machine .................................. 22.9 15.4 3.4 2.7 1.4 9.6

Water Temperature Setting for Clothes

Washer

 Wash Cycle

 Hot ............................................................. 6.2 2.8 0.9 1.2 1.4 11.7

 Warm ......................................................... 49.7 19.7 9.1 11.6 9.4 4.8

 Cold ........................................................... 28.2 12.0 4.7 5.8 5.7 6.9

 Rinse Cycle

 Hot ............................................................. 1.4 0.7 0.1 0.2 0.3 27.0

 Warm ......................................................... 16.6 7.6 3.0 3.2 2.9 9.1

 Cold ........................................................... 66.1 26.2 11.5 15.1 13.2 4.6

 No Washing Machine .................................. 22.9 15.4 3.4 2.7 1.4 9.6

Clothes Dryer

 Use a Clothes Dryer .................................... 78.8 31.4 13.7 18.1 15.6 4.2

 Every Time Clothes are Washed ............... 63.5 25.9 10.5 15.4 11.7 4.4

 Some, but not All, Loads ........................... 12.7 4.5 2.4 2.4 3.4 9.2

 Used Infrequently ...................................... 2.7 1.1 0.7 0.2 0.6 18.4

 No Clothes Dryer ......................................... 28.2 18.4 4.4 3.2 2.2 8.5

Cooking

Number of Hot Meals Cooked in the Home

 3 or More Times a Day ................................ 7.5 3.9 1.2 1.1 1.3 12.3

 2 Times a Day ............................................. 26.8 12.5 4.9 5.0 4.4 6.5

 Once a Day ................................................. 43.3 18.3 7.3 9.7 8.1 5.2

 A Few Times Each Week ............................ 21.7 11.1 3.3 4.3 3.1 7.9

 About Once a Week .................................... 4.0 2.2 0.7 0.5 0.5 15.2

 Less Than Once a Week ............................. 2.4 1.3 0.4 0.4 0.3 19.1

 No Hot Meals Cooked ................................. 1.2 0.5 0.2 Q 0.2 29.8

Conventional Oven

 Use a Conventional Oven ........................... 99.4 46.5 17.3 19.3 16.3 4.2

 More Than Once a Day ............................. 8.6 4.0 1.7 1.6 1.3 11.7

 Once a Day ............................................... 17.4 7.7 3.0 3.4 3.3 7.6

 Between Once a Day and

 Once a Week ............................................. 33.1 14.5 5.5 7.4 5.7 6.1

 Once a Week ............................................. 15.6 7.5 2.4 3.0 2.8 8.2

 Less Than Once a Week ........................... 24.6 12.8 4.7 3.8 3.3 7.3

 Do Not Use .................................................. 7.6 3.4 0.8 1.9 1.6 12.6

See footnotes at end of table.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC6-8a. Usage Indicators by Urban/Rural Location, 

 Million U.S. Households, 2001 (Continued)

Usage Indicators

RSE Column Factor:

Total

Urban/Rural Location1

RSE

Row

Factors

City Town Suburbs Rural

0.5 0.8 1.4 1.3 1.4

Microwave Oven

 Use a Microwave Oven ............................... 92.1 41.0 15.9 18.9 16.4 3.8

 Most or All ................................................. 8.2 4.4 1.3 1.4 1.0 11.2

 About Half .................................................. 19.3 8.9 3.2 4.2 3.0 8.2

 Some or Very Little .................................... 22.4 9.4 3.9 4.9 4.2 7.0

 For Defrosting, Reheating,

 or Snacks .................................................. 42.2 18.3 7.4 8.4 8.1 5.5

 No Microwave Oven .................................... 14.8 8.9 2.2 2.3 1.5 10.3

Electric Coffee Maker

 Use an Electric Coffee Maker ...................... 65.5 27.2 11.4 14.5 12.4 4.3

 Three or More Times a Day ...................... 2.4 0.9 0.5 0.4 0.6 18.0

 Two Times a Day ...................................... 5.9 2.3 1.1 1.3 1.3 12.2

 Once a Day ............................................... 33.6 13.2 6.0 7.6 6.8 5.6

 A Few Times Each Week .......................... 9.4 4.6 1.5 1.8 1.6 9.8

 About Once a Week .................................. 5.2 2.3 0.8 1.4 0.7 12.1

 Less than Once a Week ............................ 9.0 3.9 1.5 2.1 1.4 9.5

 No Electric Coffee Maker ............................ 41.5 22.7 6.6 6.7 5.4 6.1

Time Electric Coffee Maker is Left On

 Turned Off Right Away ................................ 18.8 8.0 3.3 3.9 3.6 7.3

 Less than 15 Minutes .................................. 10.0 4.1 1.8 2.5 1.7 9.1

 15 Minutes to 1 Hour ................................... 24.6 10.2 3.9 6.2 4.4 6.9

 More than 1 Hour ........................................ 12.1 4.9 2.5 2.0 2.8 10.0

Electric Toaster

 Use a Electric Toaster ................................. 36.1 17.4 6.1 7.1 5.5 6.1

 Three or More Times a Day ...................... 1.0 0.6 0.2 0.2 0.2 30.0

 Two Times a Day ...................................... 2.7 1.4 0.4 0.6 0.3 19.4

 Once a Day ............................................... 8.2 3.7 1.4 1.8 1.4 10.9

 A Few Times Each Week .......................... 11.9 6.1 2.0 2.4 1.5 9.5

 About Once a Week .................................. 4.3 2.1 0.8 0.7 0.7 13.9

 Less than Once a Week ............................ 7.9 3.6 1.4 1.5 1.4 10.8

 No Electric Toaster ...................................... 70.9 32.5 12.0 14.1 12.4 4.2

Lights

Indoor Lights Turned On:

 1 to 4 Hours per Day

 None .......................................................... 10.2 5.0 1.7 1.8 1.7 11.0

 1 ................................................................ 30.1 15.4 4.9 5.3 4.6 6.3

 2 ................................................................ 30.7 14.9 5.0 5.7 5.1 6.4

 3 ................................................................ 16.6 6.5 3.1 4.0 3.0 8.4

 4 ................................................................ 10.5 4.4 1.9 2.2 1.9 10.5

 5 or More ................................................... 8.8 3.6 1.4 2.3 1.6 11.1

 Between 4 and 12 Hours per Day

 None .......................................................... 30.2 15.0 5.4 5.0 4.9 7.5

 1 ................................................................ 25.2 12.3 4.2 4.8 3.9 6.8

 2 ................................................................ 25.5 12.3 4.2 4.7 4.3 6.5

 3 ................................................................ 12.7 5.3 1.9 3.1 2.4 8.9

 4 ................................................................ 7.2 2.9 1.5 1.6 1.2 10.8

 5 or More ................................................... 6.2 2.1 0.9 2.1 1.1 13.8

 More then 12 Hours per Day

 None .......................................................... 81.1 38.2 13.9 15.9 13.2 4.4

 1 ................................................................ 14.4 6.7 2.1 3.2 2.5 9.0

 2 ................................................................ 6.8 3.2 1.3 1.1 1.2 12.7

 3 ................................................................ 2.4 0.9 0.4 0.4 0.6 23.5

 4 ................................................................ 1.3 0.6 0.2 0.3 0.2 27.3

 5 or More ................................................... 1.1 0.3 0.2 0.4 0.2 26.5

See footnotes at end of table.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC6-8a. Usage Indicators by Urban/Rural Location, 

 Million U.S. Households, 2001 (Continued)

Usage Indicators

RSE Column Factor:

Total

Urban/Rural Location1

RSE

Row

Factors

City Town Suburbs Rural

0.5 0.8 1.4 1.3 1.4

Outdoor Lights on All Night

 Used ............................................................ 24.5 10.3 3.6 5.0 5.6 7.7

 Not Used .................................................... 82.5 39.5 14.5 16.2 12.3 4.0

Gas Fireplace

Use a Gas Fireplace During Winter Months .. 3.7 1.4 0.6 1.0 0.7 16.5

 Most Days ................................................... 1.3 0.5 0.3 0.1 0.4 30.2

 Almost Once a Week ................................... 1.1 0.3 0.2 0.5 0.1 30.2

 Less Than 4 Times a Month ...................... 1.2 0.6 0.1 0.4 0.1 28.6

Use a Personal Computer ........................... 60.0 25.6 9.3 15.0 10.1 4.7

Hours PC Turned On Each Week

 Less Than 2 Hours ...................................... 10.3 4.4 1.6 2.3 2.0 9.8

 2 to 15 Hours ............................................... 26.3 11.6 4.3 6.1 4.3 6.3

 16 to 40 Hours ............................................. 12.2 4.9 1.9 3.2 2.2 9.9

 More than 40 Hours ..................................... 5.7 2.4 0.7 1.8 0.8 13.2

 On All The Time .......................................... 5.6 2.3 0.8 1.5 0.9 13.6

Use of PCs Turned on 16 Hours

a Week or More

 Personal Use Only ...................................... 14.0 5.8 2.1 3.5 2.6 9.6

 Business Use Only ...................................... 2.1 0.7 0.4 0.7 0.3 19.0

 Both Personal and Business ....................... 7.3 3.0 1.0 2.4 1.0 12.3

Business Use of PCs Turned on 16 Hours

a Week or More

 Use to Telecommute ................................... 3.6 1.1 0.5 1.6 0.4 17.5

 Other Business Use .................................... 5.8 2.6 0.8 1.5 0.9 12.8

Battery Operated Appliances/Tools

 Use Battery Operated Appliances/

 Tools ............................................................ 47.7 18.7 8.0 11.5 9.4 5.5

 How Maintained When

 Not in Use

 Plugged in All The Time ............................ 10.8 4.0 1.8 2.9 2.1 10.8

 Recharged As Needed .............................. 33.8 13.6 5.6 7.7 6.8 6.1

 Both Ways are Used ................................. 3.1 1.1 0.6 0.9 0.5 16.1

 Don’t Use Any ............................................. 59.3 31.2 10.0 9.7 8.4 5.1

1 Based on the household respondent’s description rather than the Federal Government definition. 2 The 1.0 million households that do not heat their homes are not included in these categories.

Q = Data withheld either because the Relative Standard Error (RSE) was greater than 50 percent or fewer than 10 households were sampled.

Notes: • To obtain the RSE percentage for any table cell, multiply the corresponding column and row factors. • Because of rounding, data may not sum to totals. 

• See "Glossary" for definition of terms used in this report. • All temperatures listed are in degrees Fahrenheit.

Source: Energy Information Administration, Office of Energy Markets and End Use, Forms EIA-457 A, B, C of the 2001 Residential Energy Consumption Survey.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC6-9a. Usage Indicators by Northeast Census Region, 

 Million U.S. Households, 2001

Usage Indicators

RSE Column Factor:

Total

U.S.

Northeast Census Region

RSE

Row

Factors

Total

Census Division

Middle Atlantic New England

0.5 1.0 1.3 1.5

Total .............................................................. 107.0 20.3 14.8 5.4 NE

Weekday Home Activities

 Home Used for Business

 Yes ............................................................ 7.6 1.5 1.0 0.5 13.5

 No .............................................................. 99.4 18.8 13.9 4.9 1.1

 Energy-Intensive Activity

 Yes ............................................................ 1.7 0.5 0.4 Q 20.2

 No .............................................................. 105.2 19.7 14.5 5.3 NE

 Someone Home All Day

 Yes ............................................................ 53.0 10.3 7.9 2.4 4.2

 No .............................................................. 53.9 10.0 7.0 3.0 4.2

Heating

 Heat Home .................................................. 106.0 20.1 14.7 5.4 NE

 Do Not Heat Home ...................................... 1.0 Q Q Q 20.1

 No Heating Equipment .............................. 0.5 Q Q Q 39.8

 Have Equipment But

 Do Not Use It ............................................. 0.4 Q Q Q 39.0

Adequacy of Insulation

 Well Insulated .............................................. 42.6 8.5 5.9 2.5 4.5

 Adequately Insulated ................................... 43.1 7.8 6.0 1.8 6.6

 Poorly Insulated ........................................... 19.4 3.8 2.7 1.1 9.0

 No Insulation ............................................... 0.9 Q Q Q 30.7

 Don’t Know .................................................. 0.9 Q Q Q 33.6

Occurrences of Drafts During Winter

 Never ........................................................... 5.9 1.4 1.0 0.4 19.7

 Some of the Time ........................................ 6.4 1.4 1.0 0.4 13.4

 Most of the .................................................. 34.6 6.8 5.1 1.7 6.0

 All of the Time ............................................. 55.3 10.1 7.4 2.7 3.9

 Don’t Know .................................................. 4.7 0.6 0.4 0.2 16.4

 Thermostat

 Heat Home ................................................ 106.0 20.1 14.7 5.4 NE

 Thermostat Available During

 Heating Season ....................................... 91.5 15.7 10.9 4.9 2.1

 Programmable1

 Yes ...................................................... 25.1 5.0 3.7 1.3 6.1

 No ........................................................ 66.4 10.8 7.2 3.6 3.7

 No Thermostat ......................................... 14.5 4.4 3.8 0.6 9.1

 Do Not Heat Home .................................... 1.0 Q Q Q 20.1

Lower Winter Temperature Settings1

 Daytime When No One is at Home

 Yes ............................................................ 47.2 7.5 5.0 2.5 5.6

 No .............................................................. 48.5 11.2 8.7 2.6 4.5

 Unknown ................................................... 10.3 1.4 1.1 0.3 12.6

 During Sleeping Hours

 Yes ............................................................ 45.7 8.9 6.3 2.5 5.1

 No .............................................................. 51.1 10.0 7.4 2.7 4.3

 Unknown ................................................... 9.2 1.3 1.0 0.2 12.4

See footnotes at end of table.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC6-9a. Usage Indicators by Northeast Census Region, 

 Million U.S. Households, 2001 (Continued)

Usage Indicators

RSE Column Factor:

Total

U.S.

Northeast Census Region

RSE

Row

Factors

Total

Census Division

Middle Atlantic New England

0.5 1.0 1.3 1.5

Daytime Winter Temperature When

Someone is at Home1

 Heat Turned On ........................................... 96.8 18.9 13.8 5.2 1.3

 63 Degrees or Less ................................... 3.9 0.8 0.5 0.3 15.2

 64 to 66 Degrees ...................................... 8.4 2.4 1.6 0.8 12.4

 67 to 69 Degrees ....................................... 23.6 5.7 3.9 1.9 4.9

 70 Degrees ................................................ 25.7 5.1 3.9 1.3 6.1

 71 to 73 Degrees ....................................... 16.5 3.0 2.5 0.5 10.4

 74 Degrees or More .................................. 18.6 1.9 1.5 0.4 6.8

 Heat Turned Off ........................................... 2.0 Q Q Q 21.3

 Unknown/No Answer ................................... 7.2 1.2 0.9 0.2 12.0

Daytime Winter Temperature When No

One is at Home1

 Heat Turned On ........................................... 87.6 18.7 13.6 5.1 1.4

 63 Degrees or Less ................................... 17.7 3.8 2.3 1.5 8.5

 64 to 66 Degrees ...................................... 17.2 4.0 2.7 1.2 6.8

 67 to 69 Degrees ....................................... 19.1 4.6 3.3 1.3 6.4

 70 Degrees ................................................ 15.1 3.3 2.7 0.7 6.8

 71 to 73 Degrees ....................................... 8.7 1.7 1.5 0.2 11.3

 74 Degrees or More .................................. 9.8 1.2 1.1 Q 8.0

 Heat Turned Off ........................................... 10.5 Q Q Q 14.1

 Unknown/No Answer ................................... 8.0 1.4 1.1 0.3 13.0

Winter Temperature During Sleeping

Hours1

 Heat Turned On ........................................... 91.8 18.8 13.7 5.1 1.2

 63 Degrees or Less ................................... 15.4 3.6 2.2 1.4 7.9

 64 to 66 Degrees ...................................... 17.4 4.3 3.0 1.3 5.4

 67 to 69 Degrees ....................................... 21.0 4.9 3.5 1.3 6.4

 70 Degrees ................................................ 17.4 3.4 2.6 0.8 7.5

 71 to 73 Degrees ....................................... 9.5 1.6 1.4 0.3 13.9

 74 Degrees or More .................................. 11.1 1.1 0.9 0.1 10.9

 Heat Turned Off ........................................... 7.1 Q Q Q 13.4

 Unknown/No Answer ................................... 7.1 1.3 1.0 0.2 12.9

Air-Conditioning

Central Air-Conditioning

 Use a Central System ................................. 58.6 5.7 5.0 0.8 8.6

 All Summer ................................................ 28.4 1.6 1.4 0.2 15.0

 Quite a Bit .................................................. 12.1 1.3 1.2 Q 13.5

 Only a Few Times ..................................... 16.8 2.8 2.4 0.4 11.7

 Not at All .................................................... 1.4 Q Q Q 28.8

 No Central System ...................................... 48.4 14.5 9.9 4.6 3.9

Window/Wall Air-Conditioning

 Use Window/Wall Units ............................... 25.1 8.9 6.4 2.4 5.8

 All Summer ................................................ 4.9 1.0 0.8 0.2 18.5

 Quite a Bit .................................................. 5.2 1.7 1.3 0.4 13.5

 Only a Few Times ..................................... 14.1 5.9 4.1 1.8 6.4

 Not at All .................................................... 0.9 0.2 0.2 Q 34.0

 No Window/Wall Units ................................. 81.9 11.4 8.4 3.0 3.6

See footnotes at end of table.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC6-9a. Usage Indicators by Northeast Census Region, 

 Million U.S. Households, 2001 (Continued)

Usage Indicators

RSE Column Factor:

Total

U.S.

Northeast Census Region

RSE

Row

Factors

Total

Census Division

Middle Atlantic New England

0.5 1.0 1.3 1.5

Hot Water

Dishwasher Use Each Week

 Use a Dishwasher ....................................... 56.7 9.2 6.5 2.7 4.0

 Less Than Once a Week ........................... 9.4 1.7 1.1 0.5 10.8

 Once Each Week ...................................... 7.5 1.1 0.8 0.4 17.0

 2 to 3 Times ............................................... 17.8 2.9 2.2 0.7 9.4

 4 to 6 Times ............................................... 11.7 1.6 1.1 0.5 13.3

 At Least Once Each Day ........................... 10.4 1.8 1.3 0.5 12.2

 No Dishwasher ............................................ 50.3 11.0 8.3 2.7 3.7

Loads of Laundry Washed Each Week

 Use a Clothes Washer ................................ 84.1 14.7 10.7 4.0 2.8

 1 Load or Less ........................................... 6.8 1.5 1.1 0.3 11.5

 2 to 9 Loads ............................................... 65.1 11.5 8.2 3.2 4.5

 10 to 15 Loads ........................................... 9.6 1.4 1.0 0.4 8.6

 More than 15 Loads .................................. 2.7 0.4 0.3 Q 23.8

 No Washing Machine .................................. 22.9 5.5 4.2 1.4 8.1

Water Temperature Setting for Clothes

Washer

 Wash Cycle

 Hot ............................................................. 6.2 1.4 1.0 0.4 16.0

 Warm ......................................................... 49.7 9.4 7.2 2.2 4.7

 Cold ........................................................... 28.2 4.0 2.5 1.4 7.2

 Rinse Cycle

 Hot ............................................................. 1.4 0.4 Q Q 38.7

 Warm ......................................................... 16.6 3.2 2.3 0.9 13.3

 Cold ........................................................... 66.1 11.2 8.1 3.1 5.3

 No Washing Machine .................................. 22.9 5.5 4.2 1.4 8.1

Clothes Dryer

 Use a Clothes Dryer .................................... 78.8 13.3 9.6 3.7 3.1

 Every Time Clothes are Washed ............... 63.5 9.7 6.9 2.8 3.1

 Some, but not All, Loads ........................... 12.7 2.8 2.2 0.6 8.4

 Used Infrequently ...................................... 2.7 0.7 0.5 0.3 20.5

 No Clothes Dryer ......................................... 28.2 7.0 5.3 1.7 6.6

Cooking

Number of Hot Meals Cooked in the Home

 3 or More Times a Day ................................ 7.5 1.2 0.8 0.4 13.2

 2 Times a Day ............................................. 26.8 4.6 3.2 1.4 5.9

 Once a Day ................................................. 43.3 8.9 6.6 2.3 4.1

 A Few Times Each Week ............................ 21.7 4.2 3.2 0.9 7.3

 About Once a Week .................................... 4.0 0.5 0.4 0.2 16.9

 Less Than Once a Week ............................. 2.4 0.6 0.4 0.2 23.1

 No Hot Meals Cooked ................................. 1.2 Q Q Q 43.4

Conventional Oven

 Use a Conventional Oven ........................... 99.4 19.3 14.3 5.1 1.4

 More Than Once a Day ............................. 8.6 1.5 1.0 0.5 12.1

 Once a Day ............................................... 17.4 3.3 2.3 1.1 5.7

 Between Once a Day and

 Once a Week ............................................. 33.1 6.4 4.7 1.8 6.5

 Once a Week ............................................. 15.6 2.8 2.2 0.6 8.1

 Less Than Once a Week ........................... 24.6 5.3 4.1 1.2 7.8

 Do Not Use .................................................. 7.6 0.9 0.6 0.3 17.3

See footnotes at end of table.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC6-9a. Usage Indicators by Northeast Census Region, 

 Million U.S. Households, 2001 (Continued)

Usage Indicators

RSE Column Factor:

Total

U.S.

Northeast Census Region

RSE

Row

Factors

Total

Census Division

Middle Atlantic New England

0.5 1.0 1.3 1.5

Microwave Oven

 Use a Microwave Oven ............................... 92.1 15.2 11.3 4.0 3.5

 Most or All ................................................. 8.2 1.1 1.0 0.2 9.6

 About Half .................................................. 19.3 2.8 1.9 0.9 10.1

 Some or Very Little .................................... 22.4 3.6 2.5 1.1 7.7

 For Defrosting, Reheating,

 or Snacks .................................................. 42.2 7.7 5.9 1.8 7.1

 No Microwave Oven .................................... 14.8 5.0 3.6 1.5 12.4

Electric Coffee Maker

 Use an Electric Coffee Maker ...................... 65.5 12.4 8.8 3.6 3.2

 Three or More Times a Day ...................... 2.4 0.6 0.5 Q 16.2

 Two Times a Day ...................................... 5.9 1.4 0.9 0.5 12.5

 Once a Day ............................................... 33.6 6.0 4.3 1.7 5.0

 A Few Times Each Week .......................... 9.4 1.7 1.2 0.5 10.5

 About Once a Week .................................. 5.2 1.1 0.8 0.3 12.3

 Less than Once a Week ............................ 9.0 1.6 1.1 0.5 11.3

 No Electric Coffee Maker ............................ 41.5 7.9 6.0 1.9 5.2

Time Electric Coffee Maker is Left On

 Turned Off Right Away ................................ 18.8 4.9 3.6 1.3 6.9

 Less than 15 Minutes .................................. 10.0 2.2 1.5 0.7 12.9

 15 Minutes to 1 Hour ................................... 24.6 3.4 2.3 1.1 6.8

 More than 1 Hour ........................................ 12.1 1.8 1.4 0.4 15.2

Electric Toaster

 Use a Electric Toaster ................................. 36.1 8.5 6.3 2.2 6.1

 Three or More Times a Day ...................... 1.0 0.3 Q Q 28.6

 Two Times a Day ...................................... 2.7 0.7 0.5 0.3 19.4

 Once a Day ............................................... 8.2 2.1 1.6 0.5 13.3

 A Few Times Each Week .......................... 11.9 2.8 2.1 0.7 10.8

 About Once a Week .................................. 4.3 1.0 0.8 0.2 12.0

 Less than Once a Week ............................ 7.9 1.6 1.2 0.3 10.7

 No Electric Toaster ...................................... 70.9 11.7 8.5 3.2 4.0

Lights

Indoor Lights Turned On:

 1 to 4 Hours per Day

 None .......................................................... 10.2 1.7 1.3 0.4 12.4

 1 ................................................................ 30.1 5.8 4.4 1.4 5.5

 2 ................................................................ 30.7 6.0 4.2 1.8 6.4

 3 ................................................................ 16.6 3.2 2.4 0.8 12.9

 4 ................................................................ 10.5 1.8 1.4 0.5 13.5

 5 or More ................................................... 8.8 1.7 1.1 0.6 13.4

 Between 4 and 12 Hours per Day

 None .......................................................... 30.2 6.1 4.0 2.2 6.7

 1 ................................................................ 25.2 4.5 3.5 1.1 8.0

 2 ................................................................ 25.5 4.9 4.0 0.9 5.9

 3 ................................................................ 12.7 2.3 1.7 0.5 10.7

 4 ................................................................ 7.2 1.2 0.8 0.4 13.0

 5 or More ................................................... 6.2 1.3 0.9 0.3 12.7

 More then 12 Hours per Day

 None .......................................................... 81.1 16.0 11.5 4.5 1.7

 1 ................................................................ 14.4 2.8 2.2 0.7 8.7

 2 ................................................................ 6.8 0.9 0.7 0.2 15.4

 3 ................................................................ 2.4 0.3 0.3 Q 32.9

 4 ................................................................ 1.3 Q Q Q 29.3

 5 or More ................................................... 1.1 Q Q Q 25.4

See footnotes at end of table.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC6-9a. Usage Indicators by Northeast Census Region, 

 Million U.S. Households, 2001 (Continued)

Usage Indicators

RSE Column Factor:

Total

U.S.

Northeast Census Region

RSE

Row

Factors

Total

Census Division

Middle Atlantic New England

0.5 1.0 1.3 1.5

Outdoor Lights on All Night

 Used ............................................................ 24.5 3.3 2.8 0.5 10.2

 Not Used .................................................... 82.5 17.0 12.1 4.9 3.0

Gas Fireplace

Use a Gas Fireplace During Winter Months .. 3.7 0.6 0.5 Q 17.0

 Most Days ................................................... 1.3 Q Q Q 36.5

 Almost Once a Week ................................... 1.1 Q Q Q 35.5

 Less Than 4 Times a Month ...................... 1.2 Q Q Q 30.5

Use a Personal Computer ........................... 60.0 10.9 7.7 3.3 3.1

Hours PC Turned On Each Week

 Less Than 2 Hours ...................................... 10.3 1.6 1.2 0.4 9.2

 2 to 15 Hours ............................................... 26.3 5.3 3.7 1.6 4.1

 16 to 40 Hours ............................................. 12.2 2.3 1.6 0.7 9.0

 More than 40 Hours ..................................... 5.7 1.0 0.7 0.4 17.3

 On All The Time .......................................... 5.6 0.7 0.5 0.2 19.5

Use of PCs Turned on 16 Hours

a Week or More

 Personal Use Only ...................................... 14.0 2.2 1.4 0.8 11.9

 Business Use Only ...................................... 2.1 0.4 0.3 0.2 23.6

 Both Personal and Business ....................... 7.3 1.4 1.1 0.3 13.5

Business Use of PCs Turned on 16 Hours

a Week or More

 Use to Telecommute ................................... 3.6 0.8 0.6 0.2 19.9

 Other Business Use .................................... 5.8 1.1 0.8 0.3 15.1

Battery Operated Appliances/Tools

 Use Battery Operated Appliances/

 Tools ............................................................ 47.7 9.0 6.5 2.5 6.6

 How Maintained When

 Not in Use

 Plugged in All The Time ............................ 10.8 2.3 1.8 0.5 14.2

 Recharged As Needed .............................. 33.8 6.0 4.1 1.9 7.0

 Both Ways are Used ................................. 3.1 0.6 0.6 Q 18.2

 Don’t Use Any ............................................. 59.3 11.3 8.4 2.9 5.4

1 The 1.0 million households that do not heat their homes are not included in these categories.

NE = RSE row factor not estimated because RSE’s for all statistics in this row are between 0.0 and 1.0 percent.

Q = Data withheld either because the Relative Standard Error (RSE) was greater than 50 percent or fewer than 10 households were sampled.

Notes: • To obtain the RSE percentage for any table cell, multiply the corresponding column and row factors. • Because of rounding, data may not sum to totals. 

• See "Glossary" for definition of terms used in this report. • All temperatures listed are in degrees Fahrenheit.

Source: Energy Information Administration, Office of Energy Markets and End Use, Forms EIA-457 A, B, C of the 2001 Residential Energy Consumption Survey.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC6-10a. Usage Indicators by Midwest Census Region, 

 Million U.S. Households, 2001

Usage Indicators

RSE Column Factor:

Total

U.S.

Midwest Census Region

RSE

Row

Factors

Total

Census Division

East North Central West North Central

0.5 1.0 1.2 1.5

Total .............................................................. 107.0 24.5 17.1 7.4 NE

Weekday Home Activities

 Home Used for Business

 Yes ............................................................ 7.6 1.5 0.9 0.7 10.1

 No .............................................................. 99.4 22.9 16.2 6.7 0.7

 Energy-Intensive Activity

 Yes ............................................................ 1.7 0.5 Q Q 23.9

 No .............................................................. 105.2 24.0 16.8 7.2 NE

 Someone Home All Day

 Yes ............................................................ 53.0 11.8 8.3 3.5 3.8

 No .............................................................. 53.9 12.7 8.7 3.9 3.6

Heating

 Heat Home .................................................. 106.0 24.5 17.1 7.4 NE

 Do Not Heat Home ...................................... 1.0 Q Q Q 19.0

 No Heating Equipment .............................. 0.5 Q Q Q 37.6

 Have Equipment But

 Do Not Use It ............................................. 0.4 Q Q Q 36.8

Adequacy of Insulation

 Well Insulated .............................................. 42.6 10.5 7.3 3.2 3.2

 Adequately Insulated ................................... 43.1 9.5 6.6 2.9 3.3

 Poorly Insulated ........................................... 19.4 4.1 3.0 1.1 8.9

 No Insulation ............................................... 0.9 0.2 Q Q 34.2

 Don’t Know .................................................. 0.9 Q Q Q 31.8

Occurrences of Drafts During Winter

 Never ........................................................... 5.9 1.4 1.0 0.4 14.8

 Some of the Time ........................................ 6.4 1.3 0.9 0.4 18.2

 Most of the .................................................. 34.6 8.4 6.1 2.3 5.2

 All of the Time ............................................. 55.3 12.3 8.4 3.9 2.6

 Don’t Know .................................................. 4.7 1.2 0.7 0.5 10.7

 Thermostat

 Heat Home ................................................ 106.0 24.5 17.1 7.4 NE

 Thermostat Available During

 Heating Season ....................................... 91.5 22.6 15.6 7.0 1.6

 Programmable1

 Yes ...................................................... 25.1 7.1 4.8 2.3 10.3

 No ........................................................ 66.4 15.5 10.8 4.7 4.2

 No Thermostat ......................................... 14.5 1.9 1.5 0.4 16.6

 Do Not Heat Home .................................... 1.0 Q Q Q 19.0

Lower Winter Temperature Settings1

 Daytime When No One is at Home

 Yes ............................................................ 47.2 10.2 6.9 3.3 5.0

 No .............................................................. 48.5 12.1 8.7 3.4 4.2

 Unknown ................................................... 10.3 2.1 1.5 0.7 9.5

 During Sleeping Hours

 Yes ............................................................ 45.7 9.4 6.3 3.1 4.9

 No .............................................................. 51.1 13.1 9.5 3.6 4.1

 Unknown ................................................... 9.2 2.0 1.3 0.7 10.5

See footnotes at end of table.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC6-10a. Usage Indicators by Midwest Census Region, 

 Million U.S. Households, 2001 (Continued)

Usage Indicators

RSE Column Factor:

Total

U.S.

Midwest Census Region

RSE

Row

Factors

Total

Census Division

East North Central West North Central

0.5 1.0 1.2 1.5

Daytime Winter Temperature When

Someone is at Home1

 Heat Turned On ........................................... 96.8 22.5 15.8 6.7 1.0

 63 Degrees or Less ................................... 3.9 0.8 0.7 0.2 20.7

 64 to 66 Degrees ...................................... 8.4 1.4 1.0 0.4 10.0

 67 to 69 Degrees ....................................... 23.6 6.4 4.4 2.0 6.0

 70 Degrees ................................................ 25.7 5.8 4.1 1.7 7.1

 71 to 73 Degrees ....................................... 16.5 4.4 3.1 1.3 6.5

 74 Degrees or More .................................. 18.6 3.6 2.4 1.2 10.1

 Heat Turned Off ........................................... 2.0 Q Q Q 20.1

 Unknown/No Answer ................................... 7.2 1.9 1.2 0.7 11.9

Daytime Winter Temperature When No

One is at Home1

 Heat Turned On ........................................... 87.6 22.2 15.5 6.7 1.1

 63 Degrees or Less ................................... 17.7 3.8 2.5 1.3 8.8

 64 to 66 Degrees ...................................... 17.2 4.6 3.2 1.4 8.7

 67 to 69 Degrees ....................................... 19.1 5.6 3.9 1.8 8.4

 70 Degrees ................................................ 15.1 3.7 2.9 0.8 8.8

 71 to 73 Degrees ....................................... 8.7 2.6 1.9 0.7 8.1

 74 Degrees or More .................................. 9.8 1.8 1.1 0.7 16.3

 Heat Turned Off ........................................... 10.5 0.3 0.2 Q 19.6

 Unknown/No Answer ................................... 8.0 2.0 1.4 0.7 10.6

Winter Temperature During Sleeping

Hours1

 Heat Turned On ........................................... 91.8 22.5 15.8 6.7 0.9

 63 Degrees or Less ................................... 15.4 2.7 1.8 0.8 12.7

 64 to 66 Degrees ...................................... 17.4 4.1 2.8 1.3 7.9

 67 to 69 Degrees ....................................... 21.0 6.6 4.5 2.1 6.3

 70 Degrees ................................................ 17.4 4.4 3.4 1.1 7.3

 71 to 73 Degrees ....................................... 9.5 2.6 1.9 0.7 12.0

 74 Degrees or More .................................. 11.1 2.1 1.4 0.7 12.9

 Heat Turned Off ........................................... 7.1 Q Q Q 12.7

 Unknown/No Answer ................................... 7.1 1.9 1.2 0.7 11.4

Air-Conditioning

Central Air-Conditioning

 Use a Central System ................................. 58.6 14.4 9.6 4.8 3.8

 All Summer ................................................ 28.4 4.4 2.4 2.0 9.4

 Quite a Bit .................................................. 12.1 3.9 3.0 0.9 9.6

 Only a Few Times ..................................... 16.8 6.0 4.2 1.9 7.0

 Not at All .................................................... 1.4 Q Q Q 27.2

 No Central System ...................................... 48.4 10.1 7.5 2.6 5.5

Window/Wall Air-Conditioning

 Use Window/Wall Units ............................... 25.1 6.2 4.1 2.1 7.3

 All Summer ................................................ 4.9 1.1 0.6 0.5 17.2

 Quite a Bit .................................................. 5.2 1.1 0.8 0.3 17.3

 Only a Few Times ..................................... 14.1 3.8 2.6 1.2 7.8

 Not at All .................................................... 0.9 Q Q Q 31.7

 No Window/Wall Units ................................. 81.9 18.3 13.0 5.3 2.4

See footnotes at end of table.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC6-10a. Usage Indicators by Midwest Census Region, 

 Million U.S. Households, 2001 (Continued)

Usage Indicators

RSE Column Factor:

Total

U.S.

Midwest Census Region

RSE

Row

Factors

Total

Census Division

East North Central West North Central

0.5 1.0 1.2 1.5

Hot Water

Dishwasher Use Each Week

 Use a Dishwasher ....................................... 56.7 12.1 8.0 4.2 4.8

 Less Than Once a Week ........................... 9.4 1.5 0.8 0.7 11.5

 Once Each Week ...................................... 7.5 1.6 1.2 0.4 15.4

 2 to 3 Times ............................................... 17.8 3.7 2.7 1.1 12.2

 4 to 6 Times ............................................... 11.7 2.5 1.5 1.1 11.8

 At Least Once Each Day ........................... 10.4 2.8 1.8 1.0 11.3

 No Dishwasher ............................................ 50.3 12.3 9.1 3.2 5.1

Loads of Laundry Washed Each Week

 Use a Clothes Washer ................................ 84.1 19.8 13.4 6.4 2.0

 1 Load or Less ........................................... 6.8 1.3 0.9 0.3 12.8

 2 to 9 Loads ............................................... 65.1 14.6 9.9 4.7 3.0

 10 to 15 Loads ........................................... 9.6 3.0 2.0 1.0 8.7

 More than 15 Loads .................................. 2.7 0.9 0.6 0.3 15.1

 No Washing Machine .................................. 22.9 4.7 3.7 1.0 8.5

Water Temperature Setting for Clothes

Washer

 Wash Cycle

 Hot ............................................................. 6.2 1.4 1.1 0.2 10.3

 Warm ......................................................... 49.7 12.6 8.4 4.2 3.3

 Cold ........................................................... 28.2 5.8 3.9 1.9 6.0

 Rinse Cycle

 Hot ............................................................. 1.4 Q Q Q 33.9

 Warm ......................................................... 16.6 4.3 3.1 1.2 6.5

 Cold ........................................................... 66.1 15.3 10.2 5.1 2.9

 No Washing Machine .................................. 22.9 4.7 3.7 1.0 8.5

Clothes Dryer

 Use a Clothes Dryer .................................... 78.8 19.2 13.0 6.2 2.1

 Every Time Clothes are Washed ............... 63.5 15.5 10.7 4.8 3.0

 Some, but not All, Loads ........................... 12.7 3.2 1.9 1.3 7.9

 Used Infrequently ...................................... 2.7 0.6 0.4 Q 25.4

 No Clothes Dryer ......................................... 28.2 5.3 4.1 1.2 7.7

Cooking

Number of Hot Meals Cooked in the Home

 3 or More Times a Day ................................ 7.5 2.0 1.4 0.6 13.6

 2 Times a Day ............................................. 26.8 5.9 4.2 1.7 5.9

 Once a Day ................................................. 43.3 10.3 7.0 3.3 4.9

 A Few Times Each Week ............................ 21.7 4.7 3.4 1.3 9.0

 About Once a Week .................................... 4.0 0.9 0.6 0.3 22.1

 Less Than Once a Week ............................. 2.4 0.4 0.3 Q 23.5

 No Hot Meals Cooked ................................. 1.2 0.3 Q Q 42.8

Conventional Oven

 Use a Conventional Oven ........................... 99.4 23.6 16.5 7.1 0.8

 More Than Once a Day ............................. 8.6 2.0 1.6 0.4 9.6

 Once a Day ............................................... 17.4 4.2 2.8 1.4 7.8

 Between Once a Day and

 Once a Week ............................................. 33.1 8.6 6.1 2.5 6.0

 Once a Week ............................................. 15.6 3.9 2.9 1.0 8.2

 Less Than Once a Week ........................... 24.6 4.8 3.0 1.7 6.5

 Do Not Use .................................................. 7.6 0.9 0.6 0.3 18.4

See footnotes at end of table.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC6-10a. Usage Indicators by Midwest Census Region, 

 Million U.S. Households, 2001 (Continued)

Usage Indicators

RSE Column Factor:

Total

U.S.

Midwest Census Region

RSE

Row

Factors

Total

Census Division

East North Central West North Central

0.5 1.0 1.2 1.5

Microwave Oven

 Use a Microwave Oven ............................... 92.1 22.3 15.4 6.9 1.1

 Most or All ................................................. 8.2 1.8 1.2 0.6 10.5

 About Half .................................................. 19.3 5.7 4.1 1.6 6.7

 Some or Very Little .................................... 22.4 5.5 4.0 1.4 7.1

 For Defrosting, Reheating,

 or Snacks .................................................. 42.2 9.3 6.0 3.3 4.5

 No Microwave Oven .................................... 14.8 2.2 1.7 0.5 10.2

Electric Coffee Maker

 Use an Electric Coffee Maker ...................... 65.5 16.1 11.0 5.1 2.5

 Three or More Times a Day ...................... 2.4 0.5 0.4 Q 22.7

 Two Times a Day ...................................... 5.9 1.1 0.9 0.2 20.9

 Once a Day ............................................... 33.6 8.3 5.7 2.6 4.4

 A Few Times Each Week .......................... 9.4 2.2 1.5 0.7 7.7

 About Once a Week .................................. 5.2 1.5 1.0 0.5 16.0

 Less than Once a Week ............................ 9.0 2.5 1.6 1.0 9.3

 No Electric Coffee Maker ............................ 41.5 8.3 6.1 2.3 4.8

Time Electric Coffee Maker is Left On

 Turned Off Right Away ................................ 18.8 3.9 2.7 1.2 8.0

 Less than 15 Minutes .................................. 10.0 1.9 1.4 0.6 7.8

 15 Minutes to 1 Hour ................................... 24.6 6.7 4.5 2.2 6.1

 More than 1 Hour ........................................ 12.1 3.7 2.5 1.2 8.4

Electric Toaster

 Use a Electric Toaster ................................. 36.1 5.5 3.8 1.7 6.1

 Three or More Times a Day ...................... 1.0 Q Q Q 31.5

 Two Times a Day ...................................... 2.7 0.4 0.3 Q 18.8

 Once a Day ............................................... 8.2 1.1 0.7 0.4 14.1

 A Few Times Each Week .......................... 11.9 1.8 1.3 0.5 11.1

 About Once a Week .................................. 4.3 0.6 0.3 0.3 18.7

 Less than Once a Week ............................ 7.9 1.5 1.1 0.4 10.4

 No Electric Toaster ...................................... 70.9 19.0 13.3 5.7 2.0

Lights

Indoor Lights Turned On:

 1 to 4 Hours per Day

 None .......................................................... 10.2 2.6 1.8 0.9 13.5

 1 ................................................................ 30.1 7.2 5.2 1.9 5.9

 2 ................................................................ 30.7 6.8 4.7 2.0 6.1

 3 ................................................................ 16.6 3.5 2.5 1.0 8.0

 4 ................................................................ 10.5 2.5 1.6 0.9 15.3

 5 or More ................................................... 8.8 1.9 1.2 0.7 16.1

 Between 4 and 12 Hours per Day

 None .......................................................... 30.2 7.2 4.9 2.3 11.6

 1 ................................................................ 25.2 5.3 3.6 1.6 6.5

 2 ................................................................ 25.5 5.4 3.8 1.6 8.1

 3 ................................................................ 12.7 3.4 2.4 1.0 10.3

 4 ................................................................ 7.2 1.7 1.3 0.4 7.1

 5 or More ................................................... 6.2 1.5 1.0 0.5 13.8

 More then 12 Hours per Day

 None .......................................................... 81.1 19.4 13.3 6.1 2.8

 1 ................................................................ 14.4 3.0 2.4 0.6 11.4

 2 ................................................................ 6.8 1.3 0.8 0.4 20.5

 3 ................................................................ 2.4 0.4 0.3 Q 23.5

 4 ................................................................ 1.3 Q Q Q 27.7

 5 or More ................................................... 1.1 0.2 Q Q 27.4

See footnotes at end of table.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC6-10a. Usage Indicators by Midwest Census Region, 

 Million U.S. Households, 2001 (Continued)

Usage Indicators

RSE Column Factor:

Total

U.S.

Midwest Census Region

RSE

Row

Factors

Total

Census Division

East North Central West North Central

0.5 1.0 1.2 1.5

Outdoor Lights on All Night

 Used ............................................................ 24.5 5.3 3.9 1.4 8.1

 Not Used .................................................... 82.5 19.2 13.2 6.0 2.2

Gas Fireplace

Use a Gas Fireplace During Winter Months .. 3.7 0.7 0.6 Q 20.7

 Most Days ................................................... 1.3 0.2 Q Q 33.1

 Almost Once a Week ................................... 1.1 Q Q Q 33.5

 Less Than 4 Times a Month ...................... 1.2 0.3 Q Q 30.7

Use a Personal Computer ........................... 60.0 14.1 9.9 4.2 3.7

Hours PC Turned On Each Week

 Less Than 2 Hours ...................................... 10.3 2.5 1.8 0.7 10.6

 2 to 15 Hours ............................................... 26.3 5.8 4.0 1.8 6.3

 16 to 40 Hours ............................................. 12.2 2.8 2.2 0.6 10.0

 More than 40 Hours ..................................... 5.7 1.4 0.8 0.6 16.5

 On All The Time .......................................... 5.6 1.5 1.1 0.5 12.4

Use of PCs Turned on 16 Hours

a Week or More

 Personal Use Only ...................................... 14.0 4.0 2.8 1.2 8.8

 Business Use Only ...................................... 2.1 0.3 Q Q 24.9

 Both Personal and Business ....................... 7.3 1.5 1.0 0.5 13.8

Business Use of PCs Turned on 16 Hours

a Week or More

 Use to Telecommute ................................... 3.6 0.6 0.4 Q 16.4

 Other Business Use .................................... 5.8 1.1 0.8 0.4 16.3

Battery Operated Appliances/Tools

 Use Battery Operated Appliances/

 Tools ............................................................ 47.7 12.5 8.7 3.7 3.2

 How Maintained When

 Not in Use

 Plugged in All The Time ............................ 10.8 2.7 1.9 0.8 9.2

 Recharged As Needed .............................. 33.8 8.8 6.2 2.6 3.6

 Both Ways are Used ................................. 3.1 1.0 0.7 0.3 15.3

 Don’t Use Any ............................................. 59.3 12.0 8.4 3.7 3.1

1 The 1.0 million households that do not heat their homes are not included in these categories.

NE = RSE row factor not estimated because RSE’s for all statistics in this row are between 0.0 and 1.0 percent.

Q = Data withheld either because the Relative Standard Error (RSE) was greater than 50 percent or fewer than 10 households were sampled.

Notes: • To obtain the RSE percentage for any table cell, multiply the corresponding column and row factors. • Because of rounding, data may not sum to totals. 

• See "Glossary" for definition of terms used in this report. • All temperatures listed are in degrees Fahrenheit.

Source: Energy Information Administration, Office of Energy Markets and End Use, Forms EIA-457 A, B, C of the 2001 Residential Energy Consumption Survey.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC6-11a. Usage Indicators by South Census Region, 

 Million U.S. Households, 2001

Usage Indicators

RSE Column Factor:

Total

U.S.

South Census Region

RSE

Row

Factors

Total

Census Division

South Atlantic East South Central West South Central

0.5 0.9 1.2 1.4 1.5

Total .............................................................. 107.0 38.9 20.3 6.8 11.8 NE

Weekday Home Activities

 Home Used for Business

 Yes ............................................................ 7.6 2.6 1.8 0.4 0.5 18.8

 No .............................................................. 99.4 36.3 18.5 6.5 11.3 1.3

 Energy-Intensive Activity

 Yes ............................................................ 1.7 0.4 Q Q Q 36.7

 No .............................................................. 105.2 38.6 20.1 6.8 11.7 NE

 Someone Home All Day

 Yes ............................................................ 53.0 19.0 9.4 3.8 5.8 3.0

 No .............................................................. 53.9 19.9 11.0 3.1 5.9 3.1

Heating

 Heat Home .................................................. 106.0 38.8 20.2 6.8 11.8 NE

 Do Not Heat Home ...................................... 1.0 Q Q Q Q 20.6

 No Heating Equipment .............................. 0.5 Q Q Q Q 40.9

 Have Equipment But

 Do Not Use It ............................................. 0.4 Q Q Q Q 40.0

Adequacy of Insulation

 Well Insulated .............................................. 42.6 15.8 8.3 3.0 4.5 4.9

 Adequately Insulated ................................... 43.1 16.3 8.5 2.7 5.1 4.9

 Poorly Insulated ........................................... 19.4 6.4 3.2 1.1 2.1 6.3

 No Insulation ............................................... 0.9 Q Q Q Q 31.5

 Don’t Know .................................................. 0.9 Q Q Q Q 34.6

Occurrences of Drafts During Winter

 Never ........................................................... 5.9 1.9 0.9 0.3 0.7 16.0

 Some of the Time ........................................ 6.4 2.0 1.1 0.2 0.7 13.5

 Most of the .................................................. 34.6 11.5 6.3 1.7 3.4 7.1

 All of the Time ............................................. 55.3 21.9 11.2 4.3 6.3 4.5

 Don’t Know .................................................. 4.7 1.7 0.8 0.3 0.6 15.2

 Thermostat

 Heat Home ................................................ 106.0 38.8 20.2 6.8 11.8 NE

 Thermostat Available During

 Heating Season ....................................... 91.5 34.3 18.2 5.9 10.2 1.7

 Programmable1

 Yes ...................................................... 25.1 6.9 3.5 0.8 2.5 10.6

 No ........................................................ 66.4 27.4 14.6 5.1 7.7 3.7

 No Thermostat ......................................... 14.5 4.5 2.0 0.9 1.6 11.5

 Do Not Heat Home .................................... 1.0 Q Q Q Q 20.6

Lower Winter Temperature Settings1

 Daytime When No One is at Home

 Yes ............................................................ 47.2 16.4 8.7 2.6 5.2 5.3

 No .............................................................. 48.5 18.8 9.9 3.7 5.2 5.5

 Unknown ................................................... 10.3 3.5 1.5 0.5 1.4 14.1

 During Sleeping Hours

 Yes ............................................................ 45.7 14.8 7.6 2.4 4.9 5.1

 No .............................................................. 51.1 20.9 11.2 4.0 5.7 4.3

 Unknown ................................................... 9.2 3.1 1.4 0.5 1.2 14.6

See footnotes at end of table.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC6-11a. Usage Indicators by South Census Region, 

 Million U.S. Households, 2001 (Continued)

Usage Indicators

RSE Column Factor:

Total

U.S.

South Census Region

RSE

Row

Factors

Total

Census Division

South Atlantic East South Central West South Central

0.5 0.9 1.2 1.4 1.5

Daytime Winter Temperature When

Someone is at Home1

 Heat Turned On ........................................... 96.8 35.7 18.9 6.3 10.5 1.4

 63 Degrees or Less ................................... 3.9 0.7 0.4 0.2 Q 21.9

 64 to 66 Degrees ...................................... 8.4 2.0 1.2 0.3 0.5 17.5

 67 to 69 Degrees ....................................... 23.6 6.7 3.7 1.3 1.7 6.3

 70 Degrees ................................................ 25.7 9.5 5.4 1.6 2.4 7.8

 71 to 73 Degrees ....................................... 16.5 6.7 3.6 1.2 1.9 9.8

 74 Degrees or More .................................. 18.6 10.1 4.5 1.6 4.0 6.8

 Heat Turned Off ........................................... 2.0 0.5 Q Q Q 27.7

 Unknown/No Answer ................................... 7.2 2.6 1.0 0.4 1.1 15.9

Daytime Winter Temperature When No

One is at Home1

 Heat Turned On ........................................... 87.6 32.8 17.4 5.8 9.6 2.8

 63 Degrees or Less ................................... 17.7 5.3 2.9 0.7 1.7 14.0

 64 to 66 Degrees ...................................... 17.2 5.4 3.2 0.8 1.3 10.3

 67 to 69 Degrees ....................................... 19.1 6.4 3.4 1.4 1.6 9.6

 70 Degrees ................................................ 15.1 6.2 3.2 1.1 1.9 9.1

 71 to 73 Degrees ....................................... 8.7 3.6 1.9 0.9 0.8 11.0

 74 Degrees or More .................................. 9.8 5.9 2.8 0.9 2.3 10.5

 Heat Turned Off ........................................... 10.5 3.1 1.5 0.5 1.1 21.3

 Unknown/No Answer ................................... 8.0 2.8 1.3 0.5 1.1 13.6

Winter Temperature During Sleeping

Hours1

 Heat Turned On ........................................... 91.8 34.9 18.3 6.2 10.4 1.7

 63 Degrees or Less ................................... 15.4 4.1 2.2 0.5 1.4 14.7

 64 to 66 Degrees ...................................... 17.4 5.4 3.1 0.9 1.3 8.9

 67 to 69 Degrees ....................................... 21.0 6.8 3.5 1.4 2.0 7.0

 70 Degrees ................................................ 17.4 7.5 4.0 1.5 2.0 7.5

 71 to 73 Degrees ....................................... 9.5 4.6 2.6 0.9 1.0 11.1

 74 Degrees or More .................................. 11.1 6.5 2.9 0.9 2.7 10.5

 Heat Turned Off ........................................... 7.1 1.4 0.7 0.2 0.5 21.7

 Unknown/No Answer ................................... 7.1 2.5 1.1 0.5 1.0 15.8

Air-Conditioning

Central Air-Conditioning

 Use a Central System ................................. 58.6 30.7 16.4 5.1 9.3 2.6

 All Summer ................................................ 28.4 20.7 10.3 3.5 6.9 4.5

 Quite a Bit .................................................. 12.1 5.5 3.0 0.8 1.7 8.7

 Only a Few Times ..................................... 16.8 4.1 2.8 0.7 0.6 11.0

 Not at All .................................................... 1.4 0.5 0.4 Q Q 30.9

 No Central System ...................................... 48.4 8.2 3.9 1.8 2.5 7.5

Window/Wall Air-Conditioning

 Use Window/Wall Units ............................... 25.1 7.0 3.2 1.5 2.4 8.8

 All Summer ................................................ 4.9 2.5 0.9 0.7 1.0 14.4

 Quite a Bit .................................................. 5.2 1.9 0.9 0.3 0.7 16.2

 Only a Few Times ..................................... 14.1 2.5 1.4 0.5 0.7 13.9

 Not at All .................................................... 0.9 Q Q Q Q 34.4

 No Window/Wall Units ................................. 81.9 31.9 17.2 5.3 9.4 2.1

See footnotes at end of table.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC6-11a. Usage Indicators by South Census Region, 

 Million U.S. Households, 2001 (Continued)

Usage Indicators

RSE Column Factor:

Total

U.S.

South Census Region

RSE

Row

Factors

Total

Census Division

South Atlantic East South Central West South Central

0.5 0.9 1.2 1.4 1.5

Hot Water

Dishwasher Use Each Week

 Use a Dishwasher ....................................... 56.7 22.1 11.7 3.5 6.9 3.5

 Less Than Once a Week ........................... 9.4 3.9 2.3 0.4 1.2 10.5

 Once Each Week ...................................... 7.5 2.8 1.6 0.5 0.7 16.5

 2 to 3 Times ............................................... 17.8 6.6 3.3 0.9 2.4 8.0

 4 to 6 Times ............................................... 11.7 4.9 2.7 0.9 1.3 10.0

 At Least Once Each Day ........................... 10.4 3.9 1.8 0.7 1.3 11.7

 No Dishwasher ............................................ 50.3 16.9 8.6 3.4 4.9 4.3

Loads of Laundry Washed Each Week

 Use a Clothes Washer ................................ 84.1 32.7 17.2 5.9 9.6 2.5

 1 Load or Less ........................................... 6.8 2.2 1.6 0.3 0.3 14.2

 2 to 9 Loads ............................................... 65.1 25.9 13.7 4.6 7.7 2.7

 10 to 15 Loads ........................................... 9.6 3.6 1.5 0.7 1.3 9.7

 More than 15 Loads .................................. 2.7 1.0 0.3 0.3 0.3 22.8

 No Washing Machine .................................. 22.9 6.2 3.1 0.9 2.2 12.5

Water Temperature Setting for Clothes

Washer

 Wash Cycle

 Hot ............................................................. 6.2 2.3 1.2 0.4 0.7 12.0

 Warm ......................................................... 49.7 17.3 8.5 3.0 5.8 5.0

 Cold ........................................................... 28.2 13.0 7.5 2.4 3.1 6.0

 Rinse Cycle

 Hot ............................................................. 1.4 0.6 0.3 Q Q 35.1

 Warm ......................................................... 16.6 6.0 3.2 1.2 1.5 10.7

 Cold ........................................................... 66.1 26.1 13.6 4.6 7.9 3.5

 No Washing Machine .................................. 22.9 6.2 3.1 0.9 2.2 12.5

Clothes Dryer

 Use a Clothes Dryer .................................... 78.8 30.3 15.5 5.6 9.2 2.9

 Every Time Clothes are Washed ............... 63.5 25.3 12.7 4.6 8.0 3.4

 Some, but not All, Loads ........................... 12.7 4.2 2.4 0.8 1.1 10.4

 Used Infrequently ...................................... 2.7 0.7 0.4 0.2 Q 21.4

 No Clothes Dryer ......................................... 28.2 8.7 4.8 1.2 2.6 10.0

Cooking

Number of Hot Meals Cooked in the Home

 3 or More Times a Day ................................ 7.5 2.4 1.3 Q 1.0 15.3

 2 Times a Day ............................................. 26.8 9.7 5.5 1.7 2.5 8.1

 Once a Day ................................................. 43.3 14.7 7.6 2.6 4.5 5.6

 A Few Times Each Week ............................ 21.7 8.8 4.4 1.6 2.7 6.9

 About Once a Week .................................... 4.0 2.0 1.1 0.4 0.4 12.7

 Less Than Once a Week ............................. 2.4 1.1 Q 0.4 0.5 18.7

 No Hot Meals Cooked ................................. 1.2 0.3 Q Q Q 38.2

Conventional Oven

 Use a Conventional Oven ........................... 99.4 35.0 18.9 6.1 10.0 1.9

 More Than Once a Day ............................. 8.6 3.6 2.1 0.7 0.8 14.4

 Once a Day ............................................... 17.4 6.8 3.6 1.5 1.6 8.0

 Between Once a Day and

 Once a Week ............................................. 33.1 11.2 5.8 2.2 3.3 5.9

 Once a Week ............................................. 15.6 5.6 3.0 0.7 1.9 8.0

 Less Than Once a Week ........................... 24.6 7.9 4.4 1.1 2.4 10.2

 Do Not Use .................................................. 7.6 3.9 1.4 0.7 1.8 16.7

See footnotes at end of table.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC6-11a. Usage Indicators by South Census Region, 

 Million U.S. Households, 2001 (Continued)

Usage Indicators

RSE Column Factor:

Total

U.S.

South Census Region

RSE

Row

Factors

Total

Census Division

South Atlantic East South Central West South Central

0.5 0.9 1.2 1.4 1.5

Microwave Oven

 Use a Microwave Oven ............................... 92.1 34.7 17.9 6.2 10.6 1.6

 Most or All ................................................. 8.2 2.8 1.5 0.4 0.9 12.9

 About Half .................................................. 19.3 6.4 3.4 0.9 2.1 9.5

 Some or Very Little .................................... 22.4 8.7 4.5 1.5 2.7 7.0

 For Defrosting, Reheating,

 or Snacks .................................................. 42.2 16.7 8.5 3.3 4.9 5.5

 No Microwave Oven .................................... 14.8 4.2 2.4 0.6 1.2 13.1

Electric Coffee Maker

 Use an Electric Coffee Maker ...................... 65.5 23.0 11.3 4.5 7.2 3.5

 Three or More Times a Day ...................... 2.4 0.8 0.3 0.2 0.3 18.7

 Two Times a Day ...................................... 5.9 2.2 0.9 0.6 0.7 12.9

 Once a Day ............................................... 33.6 12.3 5.9 2.1 4.3 5.4

 A Few Times Each Week .......................... 9.4 3.3 1.9 0.6 0.8 10.8

 About Once a Week .................................. 5.2 1.5 0.8 0.3 0.4 15.5

 Less than Once a Week ............................ 9.0 2.9 1.5 0.7 0.7 8.6

 No Electric Coffee Maker ............................ 41.5 15.9 9.0 2.3 4.6 5.4

Time Electric Coffee Maker is Left On

 Turned Off Right Away ................................ 18.8 5.9 2.9 1.3 1.8 7.5

 Less than 15 Minutes .................................. 10.0 3.8 2.2 0.5 1.1 11.0

 15 Minutes to 1 Hour ................................... 24.6 9.7 4.7 1.9 3.1 6.2

 More than 1 Hour ........................................ 12.1 3.6 1.5 0.9 1.2 8.1

Electric Toaster

 Use a Electric Toaster ................................. 36.1 14.7 7.4 2.3 5.0 5.3

 Three or More Times a Day ...................... 1.0 0.5 Q Q Q 30.5

 Two Times a Day ...................................... 2.7 1.2 0.5 0.2 0.4 21.9

 Once a Day ............................................... 8.2 3.2 1.9 0.4 0.9 12.9

 A Few Times Each Week .......................... 11.9 5.1 2.7 0.6 1.8 8.7

 About Once a Week .................................. 4.3 1.6 0.7 0.3 0.5 15.2

 Less than Once a Week ............................ 7.9 3.2 1.3 0.6 1.3 10.0

 No Electric Toaster ...................................... 70.9 24.3 13.0 4.5 6.8 3.0

Lights

Indoor Lights Turned On:

 1 to 4 Hours per Day

 None .......................................................... 10.2 3.6 2.0 0.8 0.8 13.2

 1 ................................................................ 30.1 11.0 5.4 2.0 3.6 7.1

 2 ................................................................ 30.7 10.7 5.6 1.6 3.5 7.8

 3 ................................................................ 16.6 6.1 3.5 1.1 1.6 10.3

 4 ................................................................ 10.5 3.9 2.2 0.5 1.1 13.4

 5 or More ................................................... 8.8 3.6 1.6 0.8 1.2 12.7

 Between 4 and 12 Hours per Day

 None .......................................................... 30.2 8.7 4.4 1.2 3.1 8.6

 1 ................................................................ 25.2 9.6 4.5 1.8 3.3 7.4

 2 ................................................................ 25.5 9.7 5.3 1.9 2.5 6.6

 3 ................................................................ 12.7 5.1 3.1 0.9 1.0 10.2

 4 ................................................................ 7.2 3.3 1.7 0.7 1.0 12.0

 5 or More ................................................... 6.2 2.6 1.4 0.4 0.8 18.3

 More then 12 Hours per Day

 None .......................................................... 81.1 26.1 13.8 4.4 7.9 4.0

 1 ................................................................ 14.4 6.1 2.8 1.4 1.9 9.6

 2 ................................................................ 6.8 3.8 1.8 0.8 1.3 12.0

 3 ................................................................ 2.4 1.3 0.8 Q 0.4 31.7

 4 ................................................................ 1.3 0.9 0.6 Q 0.3 21.3

 5 or More ................................................... 1.1 0.6 0.5 Q Q 16.9

See footnotes at end of table.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC6-11a. Usage Indicators by South Census Region, 

 Million U.S. Households, 2001 (Continued)

Usage Indicators

RSE Column Factor:

Total

U.S.

South Census Region

RSE

Row

Factors

Total

Census Division

South Atlantic East South Central West South Central

0.5 0.9 1.2 1.4 1.5

Outdoor Lights on All Night

 Used ............................................................ 24.5 10.7 5.1 1.9 3.7 7.6

 Not Used .................................................... 82.5 28.2 15.2 4.9 8.1 2.8

Gas Fireplace

Use a Gas Fireplace During Winter Months .. 3.7 1.4 0.7 0.3 0.4 14.9

 Most Days ................................................... 1.3 0.6 0.4 Q Q 34.2

 Almost Once a Week ................................... 1.1 0.5 Q Q Q 33.1

 Less Than 4 Times a Month ...................... 1.2 0.4 Q Q Q 28.2

Use a Personal Computer ........................... 60.0 20.7 11.7 3.2 5.8 4.0

Hours PC Turned On Each Week

 Less Than 2 Hours ...................................... 10.3 3.8 2.2 0.6 0.9 12.4

 2 to 15 Hours ............................................... 26.3 8.8 4.9 1.3 2.6 6.6

 16 to 40 Hours ............................................. 12.2 3.9 2.1 0.8 1.0 13.6

 More than 40 Hours ..................................... 5.7 2.0 1.3 Q 0.6 12.6

 On All The Time .......................................... 5.6 2.2 1.1 0.4 0.6 16.5

Use of PCs Turned on 16 Hours

a Week or More

 Personal Use Only ...................................... 14.0 4.5 2.2 0.8 1.4 10.9

 Business Use Only ...................................... 2.1 0.9 0.4 0.2 Q 20.6

 Both Personal and Business ....................... 7.3 2.7 1.9 0.3 0.5 15.3

Business Use of PCs Turned on 16 Hours

a Week or More

 Use to Telecommute ................................... 3.6 1.5 1.0 0.2 0.4 24.7

 Other Business Use .................................... 5.8 2.1 1.4 0.3 0.4 14.3

Battery Operated Appliances/Tools

 Use Battery Operated Appliances/

 Tools ............................................................ 47.7 16.5 9.0 2.8 4.7 4.7

 How Maintained When

 Not in Use

 Plugged in All The Time ............................ 10.8 4.1 2.0 0.8 1.3 11.8

 Recharged As Needed .............................. 33.8 11.5 6.5 1.9 3.2 5.6

 Both Ways are Used ................................. 3.1 0.8 0.5 Q Q 21.1

 Don’t Use Any ............................................. 59.3 22.5 11.3 4.0 7.1 3.4

1 The 1.0 million households that do not heat their homes are not included in these categories.

NE = RSE row factor not estimated because RSE’s for all statistics in this row are between 0.0 and 1.0 percent.

Q = Data withheld either because the Relative Standard Error (RSE) was greater than 50 percent or fewer than 10 households were sampled.

Notes: • To obtain the RSE percentage for any table cell, multiply the corresponding column and row factors. • Because of rounding, data may not sum to totals. 

• See "Glossary" for definition of terms used in this report. • All temperatures listed are in degrees Fahrenheit.

Source: Energy Information Administration, Office of Energy Markets and End Use, Forms EIA-457 A, B, C of the 2001 Residential Energy Consumption Survey.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC6-12a. Usage Indicators by West Census Region, 

 Million U.S. Households, 2001

Usage Indicators

RSE Column Factor:

Total

U.S.

West Census Region

RSE

Row

Factors

Total

Census Division

Mountain Pacific

0.5 1.0 1.6 1.2

Total .............................................................. 107.0 23.3 6.7 16.6 NE

Weekday Home Activities

 Home Used for Business

 Yes ............................................................ 7.6 1.9 0.7 1.2 11.9

 No .............................................................. 99.4 21.4 6.0 15.4 1.1

 Energy-Intensive Activity

 Yes ............................................................ 1.7 0.4 0.2 0.2 21.9

 No .............................................................. 105.2 22.9 6.5 16.4 NE

 Someone Home All Day

 Yes ............................................................ 53.0 11.9 3.3 8.6 3.6

 No .............................................................. 53.9 11.3 3.4 7.9 3.7

Heating

 Heat Home .................................................. 106.0 22.6 6.7 15.9 NE

 Do Not Heat Home ...................................... 1.0 0.7 Q 0.7 10.7

 No Heating Equipment .............................. 0.5 0.4 Q 0.4 18.3

 Have Equipment But

 Do Not Use It ............................................. 0.4 0.2 Q 0.2 27.7

Adequacy of Insulation

 Well Insulated .............................................. 42.6 7.9 2.6 5.3 5.6

 Adequately Insulated ................................... 43.1 9.5 2.6 6.9 3.9

 Poorly Insulated ........................................... 19.4 5.2 1.4 3.8 7.7

 No Insulation ............................................... 0.9 0.4 Q 0.3 18.7

 Don’t Know .................................................. 0.9 0.4 Q 0.3 25.2

Occurrences of Drafts During Winter

 Never ........................................................... 5.9 1.2 0.4 0.8 12.5

 Some of the Time ........................................ 6.4 1.7 0.6 1.1 11.4

 Most of the .................................................. 34.6 8.0 2.3 5.7 5.8

 All of the Time ............................................. 55.3 11.1 3.2 8.0 4.4

 Don’t Know .................................................. 4.7 1.3 0.3 1.0 12.5

 Thermostat

 Heat Home ................................................ 106.0 22.6 6.7 15.9 NE

 Thermostat Available During

 Heating Season ....................................... 91.5 18.9 6.1 12.8 1.5

 Programmable1

 Yes ...................................................... 25.1 6.1 1.0 5.2 10.7

 No ........................................................ 66.4 12.8 5.1 7.7 4.7

 No Thermostat ......................................... 14.5 3.7 0.6 3.1 8.4

 Do Not Heat Home .................................... 1.0 0.7 Q 0.7 10.7

Lower Winter Temperature Settings1

 Daytime When No One is at Home

 Yes ............................................................ 47.2 13.0 3.4 9.7 2.6

 No .............................................................. 48.5 6.3 2.7 3.6 5.0

 Unknown ................................................... 10.3 3.3 0.6 2.7 7.2

 During Sleeping Hours

 Yes ............................................................ 45.7 12.7 3.1 9.6 3.5

 No .............................................................. 51.1 7.1 3.1 4.1 5.0

 Unknown ................................................... 9.2 2.8 0.6 2.3 7.8

See footnotes at end of table.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC6-12a. Usage Indicators by West Census Region, 

 Million U.S. Households, 2001 (Continued)

Usage Indicators

RSE Column Factor:

Total

U.S.

West Census Region

RSE

Row

Factors

Total

Census Division

Mountain Pacific

0.5 1.0 1.6 1.2

Daytime Winter Temperature When

Someone is at Home1

 Heat Turned On ........................................... 96.8 19.6 6.1 13.5 1.1

 63 Degrees or Less ................................... 3.9 1.6 0.4 1.2 12.7

 64 to 66 Degrees ...................................... 8.4 2.5 0.6 2.0 9.6

 67 to 69 Degrees ....................................... 23.6 4.7 1.4 3.4 7.2

 70 Degrees ................................................ 25.7 5.3 1.6 3.7 5.9

 71 to 73 Degrees ....................................... 16.5 2.4 1.0 1.5 8.4

 74 Degrees or More .................................. 18.6 3.0 1.2 1.8 8.3

 Heat Turned Off ........................................... 2.0 1.4 0.2 1.2 10.9

 Unknown/No Answer ................................... 7.2 1.6 0.4 1.2 11.8

Daytime Winter Temperature When No

One is at Home1

 Heat Turned On ........................................... 87.6 13.9 5.7 8.2 2.8

 63 Degrees or Less ................................... 17.7 4.7 1.4 3.2 7.8

 64 to 66 Degrees ...................................... 17.2 3.2 1.4 1.8 6.7

 67 to 69 Degrees ....................................... 19.1 2.3 1.0 1.3 11.1

 70 Degrees ................................................ 15.1 1.9 0.9 1.1 11.0

 71 to 73 Degrees ....................................... 8.7 0.9 0.5 0.4 11.5

 74 Degrees or More .................................. 9.8 0.9 0.5 0.3 16.6

 Heat Turned Off ........................................... 10.5 7.0 0.6 6.4 8.7

 Unknown/No Answer ................................... 8.0 1.8 0.4 1.4 11.2

Winter Temperature During Sleeping

Hours1

 Heat Turned On ........................................... 91.8 15.6 6.0 9.6 2.1

 63 Degrees or Less ................................... 15.4 5.1 1.3 3.8 8.0

 64 to 66 Degrees ...................................... 17.4 3.6 1.3 2.3 7.3

 67 to 69 Degrees ....................................... 21.0 2.7 1.3 1.5 9.5

 70 Degrees ................................................ 17.4 2.1 0.8 1.3 8.1

 71 to 73 Degrees ....................................... 9.5 0.7 0.4 0.3 12.8

 74 Degrees or More .................................. 11.1 1.3 0.9 0.4 13.1

 Heat Turned Off ........................................... 7.1 5.5 0.3 5.2 7.6

 Unknown/No Answer ................................... 7.1 1.5 0.4 1.1 11.2

Air-Conditioning

Central Air-Conditioning

 Use a Central System ................................. 58.6 7.8 2.7 5.0 8.2

 All Summer ................................................ 28.4 1.7 1.3 0.4 12.9

 Quite a Bit .................................................. 12.1 1.4 0.6 0.8 15.7

 Only a Few Times ..................................... 16.8 3.9 0.7 3.2 14.1

 Not at All .................................................... 1.4 0.8 Q 0.6 18.5

 No Central System ...................................... 48.4 15.5 4.0 11.5 5.4

Window/Wall Air-Conditioning

 Use Window/Wall Units ............................... 25.1 3.0 0.7 2.3 9.5

 All Summer ................................................ 4.9 0.2 Q Q 24.1

 Quite a Bit .................................................. 5.2 0.5 0.2 0.3 22.6

 Only a Few Times ..................................... 14.1 1.9 0.4 1.5 10.8

 Not at All .................................................... 0.9 0.4 Q 0.3 18.3

 No Window/Wall Units ................................. 81.9 20.3 6.0 14.2 1.6

See footnotes at end of table.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC6-12a. Usage Indicators by West Census Region, 

 Million U.S. Households, 2001 (Continued)

Usage Indicators

RSE Column Factor:

Total

U.S.

West Census Region

RSE

Row

Factors

Total

Census Division

Mountain Pacific

0.5 1.0 1.6 1.2

Hot Water

Dishwasher Use Each Week

 Use a Dishwasher ....................................... 56.7 13.2 4.2 9.0 4.4

 Less Than Once a Week ........................... 9.4 2.3 0.6 1.7 10.3

 Once Each Week ...................................... 7.5 1.9 0.6 1.4 9.9

 2 to 3 Times ............................................... 17.8 4.5 1.5 3.0 7.8

 4 to 6 Times ............................................... 11.7 2.6 0.7 1.8 9.8

 At Least Once Each Day ........................... 10.4 1.9 0.9 1.1 9.5

 No Dishwasher ............................................ 50.3 10.1 2.5 7.6 5.8

Loads of Laundry Washed Each Week

 Use a Clothes Washer ................................ 84.1 16.9 5.3 11.6 3.4

 1 Load or Less ........................................... 6.8 1.9 0.5 1.4 10.8

 2 to 9 Loads ............................................... 65.1 13.1 4.2 8.9 3.8

 10 to 15 Loads ........................................... 9.6 1.6 0.5 1.1 12.1

 More than 15 Loads .................................. 2.7 0.4 0.2 Q 20.1

 No Washing Machine .................................. 22.9 6.4 1.4 5.0 10.5

Water Temperature Setting for Clothes

Washer

 Wash Cycle

 Hot ............................................................. 6.2 1.1 0.3 0.8 14.5

 Warm ......................................................... 49.7 10.5 3.4 7.1 4.9

 Cold ........................................................... 28.2 5.4 1.7 3.7 5.5

 Rinse Cycle

 Hot ............................................................. 1.4 0.2 Q Q 31.6

 Warm ......................................................... 16.6 3.2 1.0 2.2 10.3

 Cold ........................................................... 66.1 13.5 4.3 9.2 4.2

 No Washing Machine .................................. 22.9 6.4 1.4 5.0 10.5

Clothes Dryer

 Use a Clothes Dryer .................................... 78.8 16.0 5.0 11.1 3.8

 Every Time Clothes are Washed ............... 63.5 12.9 3.9 9.1 4.3

 Some, but not All, Loads ........................... 12.7 2.5 0.9 1.6 8.8

 Used Infrequently ...................................... 2.7 0.7 0.2 0.4 15.0

 No Clothes Dryer ......................................... 28.2 7.3 1.8 5.5 9.2

Cooking

Number of Hot Meals Cooked in the Home

 3 or More Times a Day ................................ 7.5 1.9 0.7 1.2 12.3

 2 Times a Day ............................................. 26.8 6.6 2.1 4.6 4.2

 Once a Day ................................................. 43.3 9.4 2.9 6.5 4.6

 A Few Times Each Week ............................ 21.7 4.1 0.7 3.4 8.7

 About Once a Week .................................... 4.0 0.7 Q 0.5 11.6

 Less Than Once a Week ............................. 2.4 0.3 Q 0.2 23.1

 No Hot Meals Cooked ................................. 1.2 0.3 Q Q 36.9

Conventional Oven

 Use a Conventional Oven ........................... 99.4 21.4 6.3 15.1 1.2

 More Than Once a Day ............................. 8.6 1.5 0.6 0.9 14.4

 Once a Day ............................................... 17.4 3.1 1.0 2.1 10.0

 Between Once a Day and

 Once a Week ............................................. 33.1 6.8 2.0 4.9 5.6

 Once a Week ............................................. 15.6 3.3 1.1 2.3 7.0

 Less Than Once a Week ........................... 24.6 6.7 1.8 5.0 6.5

 Do Not Use .................................................. 7.6 1.9 0.4 1.5 15.1

See footnotes at end of table.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC6-12a. Usage Indicators by West Census Region, 

 Million U.S. Households, 2001 (Continued)

Usage Indicators

RSE Column Factor:

Total

U.S.

West Census Region

RSE

Row

Factors

Total

Census Division

Mountain Pacific

0.5 1.0 1.6 1.2

Microwave Oven

 Use a Microwave Oven ............................... 92.1 19.9 6.1 13.8 2.4

 Most or All ................................................. 8.2 2.3 0.6 1.7 10.5

 About Half .................................................. 19.3 4.5 1.3 3.2 8.7

 Some or Very Little .................................... 22.4 4.6 1.4 3.2 7.2

 For Defrosting, Reheating,

 or Snacks .................................................. 42.2 8.4 2.8 5.7 5.3

 No Microwave Oven .................................... 14.8 3.4 0.6 2.8 15.7

Electric Coffee Maker

 Use an Electric Coffee Maker ...................... 65.5 14.0 4.4 9.6 3.1

 Three or More Times a Day ...................... 2.4 0.5 0.2 0.2 24.6

 Two Times a Day ...................................... 5.9 1.3 0.4 0.8 14.6

 Once a Day ............................................... 33.6 7.1 2.2 4.9 6.0

 A Few Times Each Week .......................... 9.4 2.2 0.6 1.6 8.7

 About Once a Week .................................. 5.2 1.1 0.4 0.7 16.0

 Less than Once a Week ............................ 9.0 1.9 0.6 1.3 8.4

 No Electric Coffee Maker ............................ 41.5 9.3 2.4 7.0 4.8

Time Electric Coffee Maker is Left On

 Turned Off Right Away ................................ 18.8 4.0 1.0 3.0 9.4

 Less than 15 Minutes .................................. 10.0 2.1 0.4 1.7 9.5

 15 Minutes to 1 Hour ................................... 24.6 4.8 1.9 2.9 6.5

 More than 1 Hour ........................................ 12.1 3.1 1.1 2.0 12.1

Electric Toaster

 Use a Electric Toaster ................................. 36.1 7.4 1.9 5.5 6.2

 Three or More Times a Day ...................... 1.0 Q Q Q 31.5

 Two Times a Day ...................................... 2.7 0.4 Q 0.3 23.2

 Once a Day ............................................... 8.2 1.8 0.5 1.3 12.2

 A Few Times Each Week .......................... 11.9 2.3 0.6 1.7 12.6

 About Once a Week .................................. 4.3 1.1 0.2 0.9 12.1

 Less than Once a Week ............................ 7.9 1.7 0.5 1.2 11.1

 No Electric Toaster ...................................... 70.9 16.0 4.9 11.1 2.9

Lights

Indoor Lights Turned On:

 1 to 4 Hours per Day

 None .......................................................... 10.2 2.3 0.7 1.6 13.4

 1 ................................................................ 30.1 6.1 1.7 4.4 6.0

 2 ................................................................ 30.7 7.2 1.9 5.3 5.7

 3 ................................................................ 16.6 3.8 1.1 2.7 9.1

 4 ................................................................ 10.5 2.2 0.7 1.5 7.6

 5 or More ................................................... 8.8 1.7 0.5 1.2 13.2

 Between 4 and 12 Hours per Day

 None .......................................................... 30.2 8.2 2.6 5.6 6.1

 1 ................................................................ 25.2 5.8 1.5 4.3 7.0

 2 ................................................................ 25.5 5.6 1.6 4.0 4.5

 3 ................................................................ 12.7 2.0 0.6 1.4 8.8

 4 ................................................................ 7.2 0.9 0.3 0.7 16.5

 5 or More ................................................... 6.2 0.8 0.3 0.6 15.9

 More then 12 Hours per Day

 None .......................................................... 81.1 19.5 5.3 14.2 1.9

 1 ................................................................ 14.4 2.5 0.8 1.7 7.0

 2 ................................................................ 6.8 0.8 0.4 0.4 14.4

 3 ................................................................ 2.4 0.3 Q Q 28.5

 4 ................................................................ 1.3 Q Q Q 27.8

 5 or More ................................................... 1.1 Q Q Q 24.0

See footnotes at end of table.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC6-12a. Usage Indicators by West Census Region, 

 Million U.S. Households, 2001 (Continued)

Usage Indicators

RSE Column Factor:

Total

U.S.

West Census Region

RSE

Row

Factors

Total

Census Division

Mountain Pacific

0.5 1.0 1.6 1.2

Outdoor Lights on All Night

 Used ............................................................ 24.5 5.2 1.7 3.4 8.8

 Not Used .................................................... 82.5 18.1 5.0 13.2 2.6

Gas Fireplace

Use a Gas Fireplace During Winter Months .. 3.7 1.0 Q 0.8 17.7

 Most Days ................................................... 1.3 0.3 Q 0.2 35.2

 Almost Once a Week ................................... 1.1 0.3 Q 0.2 28.2

 Less Than 4 Times a Month ...................... 1.2 0.4 Q 0.3 26.6

Use a Personal Computer ........................... 60.0 14.3 4.0 10.4 3.7

Hours PC Turned On Each Week

 Less Than 2 Hours ...................................... 10.3 2.4 0.6 1.8 10.5

 2 to 15 Hours ............................................... 26.3 6.3 1.8 4.6 4.7

 16 to 40 Hours ............................................. 12.2 3.2 0.8 2.4 10.9

 More than 40 Hours ..................................... 5.7 1.3 0.4 0.8 14.0

 On All The Time .......................................... 5.6 1.2 0.3 0.8 17.9

Use of PCs Turned on 16 Hours

a Week or More

 Personal Use Only ...................................... 14.0 3.3 1.0 2.4 9.9

 Business Use Only ...................................... 2.1 0.6 0.2 0.4 18.6

 Both Personal and Business ....................... 7.3 1.7 0.4 1.2 12.2

Business Use of PCs Turned on 16 Hours

a Week or More

 Use to Telecommute ................................... 3.6 0.7 0.2 0.5 16.0

 Other Business Use .................................... 5.8 1.5 0.4 1.1 11.9

Battery Operated Appliances/Tools

 Use Battery Operated Appliances/

 Tools ............................................................ 47.7 9.8 3.1 6.7 6.2

 How Maintained When

 Not in Use

 Plugged in All The Time ............................ 10.8 1.7 0.4 1.3 10.6

 Recharged As Needed .............................. 33.8 7.4 2.5 4.9 6.7

 Both Ways are Used ................................. 3.1 0.6 0.2 0.5 18.6

 Don’t Use Any ............................................. 59.3 13.5 3.6 9.9 4.7

1 The 1.0 million households that do not heat their homes are not included in these categories.

NE = RSE row factor not estimated because RSE’s for all statistics in this row are between 0.0 and 1.0 percent.

Q = Data withheld either because the Relative Standard Error (RSE) was greater than 50 percent or fewer than 10 households were sampled.

Notes: • To obtain the RSE percentage for any table cell, multiply the corresponding column and row factors. • Because of rounding, data may not sum to totals. 

• See "Glossary" for definition of terms used in this report. • All temperatures listed are in degrees Fahrenheit.

Source: Energy Information Administration, Office of Energy Markets and End Use, Forms EIA-457 A, B, C of the 2001 Residential Energy Consumption Survey.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables