2001 Housing Characteristics Tables

Space Heating Tables

(Percent of U.S. Households; 24 pages, 133 kb)

Contents Pages

HC3-1b. Space Heating by Climate Zone, Percent of U.S. Households, 2001 2

HC3-2b. Space Heating by Year of Construction, Percent of U.S. Households, 2001 2 

HC3-3b. Space Heating by Household Income, Percent of U.S. Households, 2001 2 

HC3-4b. Space Heating by Type of Housing Unit, Percent of U.S. Households, 2001 2 

HC3-5b. Space Heating by Type of Owner-Occupied Housing Unit, Percent of U.S. Households, 2001 2 

HC3-6b. Space Heating by Type of Rented Housing Unit, Percent of U.S. Households, 2001 2 

HC3-7b. Space Heating by Four Most Populated States, Percent of U.S. Households, 2001 2 

HC3-8b. Space Heating by Urban/Rural Location, Percent of U.S. Households, 2001 2 

HC3-9b. Space Heating by Northeast Census Region, Percent of U.S. Households, 2001 2 

HC3-10b. Space Heating by Midwest Census Region, Percent of U.S. Households, 2001 2 

HC3-11b. Space Heating by South Census Region, Percent of U.S. Households, 2001 2 

HC3-12b. Space Heating by West Census Region, Percent of U.S. Households, 2001 2 

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.”

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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 HC3-1b. Space Heating by Climate Zone, 

 Percent of U.S. Households, 2001 

Space Heating

Characteristics

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

0.5 1.5 1.1 1.1 1.1 1.0

Total ............................................... 100.0 100.0 100.0 100.0 100.0 100.0 0.0

Heat Home ..................................... 99.1 100.0 99.9 99.5 98.4 97.9 NE

Do Not Heat Home ........................ 0.9 Q Q Q 1.6 2.1 16.6

 No Heating Equipment .................. 0.5 Q Q Q Q 1.7 29.4

 Have Equipment But

 Do Not Use It ................................ 0.4 Q Q Q 0.9 Q 30.5

Main Heating Fuel and

Equipment

(Have and Use Equipment) ............ 99.1 100.0 99.9 99.5 98.4 97.9 NE

 Natural Gas ................................... 55.2 52.2 70.5 51.5 56.3 40.9 5.8

 Central Warm-Air Furnace .......... 41.9 41.8 56.1 36.8 38.6 33.1 6.9

 For One Housing Unit ............... 40.2 39.9 53.8 34.1 37.4 32.6 7.0

 For Two or More Units .............. 1.7 Q 2.3 2.6 1.3 Q 29.9

 Steam or Hot-Water System ....... 7.4 8.7 12.5 12.9 1.3 Q 16.3

 For One Housing Unit ............... 4.8 6.4 8.8 7.5 Q Q 17.9

 For Two or More Units .............. 2.6 Q 3.7 5.4 Q Q 23.4

 Floor, Wall, or 

 Pipeless Furnace ........................ 2.9 Q Q 1.3 10.0 2.1 23.5

 Room Heater .............................. 2.6 Q 0.8 Q 5.6 4.8 22.3

 Other ........................................... 0.5 Q Q Q Q Q 49.8

 Electricity ...................................... 28.9 13.1 13.8 26.2 32.7 52.5 9.2

 Built-In Electric Units ................... 5.7 9.6 7.9 7.8 4.0 Q 19.4

 Central Warm-Air Furnace .......... 11.8 1.7 3.0 6.4 11.1 32.2 13.5

 For One Housing Unit ............... 11.1 Q 2.4 5.6 11.0 30.5 14.6

 For Two or More Units .............. 0.7 Q Q Q Q 1.6 46.8

 Heat Pump .................................. 9.7 Q 2.0 11.0 15.5 15.7 18.4

 Other ........................................... 1.7 Q 0.9 Q 2.1 3.5 25.8

 Fuel Oil ......................................... 7.5 18.6 9.3 14.4 Q Q 16.3

 Steam or Hot-Water System ....... 4.1 7.8 5.5 8.7 Q Q 18.1

 For One Housing Unit ............... 3.1 6.6 4.8 5.4 Q Q 20.4

 For Two or More Units .............. 1.1 Q 0.8 3.3 Q Q 25.4

 Central Warm-Air Furnace .......... 3.1 10.3 3.7 4.7 Q Q 22.1

 Other ........................................... 0.3 Q Q Q Q Q 49.7

 Wood ............................................ 1.9 6.2 1.1 2.3 2.0 Q 25.3

 Heating Stove ............................. 1.4 4.7 0.9 1.7 1.3 Q 28.7

 Other ........................................... 0.5 Q Q Q Q Q 37.5

 LPG ............................................... 4.6 8.2 4.6 4.4 4.6 3.6 26.7

 Central Warm-Air Furnace .......... 3.1 6.4 3.9 3.2 2.3 1.7 30.6

 Room Heater .............................. 1.0 Q Q 0.9 Q 1.8 35.0

 Other ........................................... 0.5 Q Q Q Q Q 40.5

 Kerosene ...................................... 0.8 1.4 Q Q 1.7 Q 28.2

 Other ............................................. 0.2 Q Q Q Q Q 82.5

Amount of Heat Provided

by Main Heating Equipment

 All or Almost All ............................. 90.2 89.0 91.8 92.6 85.9 90.1 1.1

 About Three-Fourths ..................... 4.0 6.5 3.7 2.7 5.8 3.1 14.5

 Closer to One-Half ........................ 3.5 3.4 2.9 3.3 5.3 2.9 17.4

 Don’t Know ................................... 1.4 Q 1.6 Q 1.5 1.8 24.5

See footnotes at end of table.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC3-1b. Space Heating by Climate Zone, 

 Percent of U.S. Households, 2001 (Continued)

Space Heating

Characteristics

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

0.5 1.5 1.1 1.1 1.1 1.0

Age of Main

Heating Equipment

 Less than 2 Years ......................... 8.1 6.4 7.4 7.0 8.8 10.2 11.6

 2 to 4 Years .................................. 12.5 12.4 11.7 13.7 12.9 12.0 9.4

 5 to 9 Years .................................. 20.0 23.1 17.8 18.4 19.0 24.0 7.7

 10 to 19 Years .............................. 22.4 24.3 22.5 22.2 20.8 23.3 7.7

 20 Years or More .......................... 24.8 25.5 28.6 23.7 28.0 18.4 6.3

 Don’t Know ................................... 11.2 8.4 11.9 14.5 9.1 10.0 13.2

Secondary Heating Fuel and

Equipment

(more than one may apply)

 No ................................................. 67.4 61.7 69.6 70.7 62.5 68.0 3.1

 Yes ................................................ 31.7 38.3 30.3 28.8 36.0 29.9 6.4

 Natural Gas ................................. 5.2 1.9 5.3 4.1 6.2 6.6 18.1

 Fireplace ................................... 3.0 Q 4.2 2.2 3.8 2.6 19.3

 Room Heater ............................ 0.9 Q 0.6 Q 1.3 1.5 31.3

 Central Warm-Air Furnace ........ 0.7 Q Q 1.5 Q Q 30.2

 Other Equipment ....................... 0.6 Q Q Q Q 1.8 38.8

 Electricity .................................... 14.7 17.5 15.7 13.7 15.4 12.8 8.6

 Portable Heater ......................... 11.0 12.5 11.8 10.2 11.9 9.7 8.9

 Built-in Electric Units ................. 2.3 3.8 2.9 2.1 2.1 1.2 23.3

 Heat Pump ................................ 1.1 Q 1.2 1.0 1.3 1.2 30.8

 Other Equipment ....................... 0.6 Q Q Q Q Q 38.1

 Fuel Oil ....................................... 0.4 Q Q Q Q Q 44.8

 Wood .......................................... 11.6 15.9 9.7 9.9 14.2 11.7 10.7

 Fireplace ................................... 8.8 8.4 7.0 6.5 12.0 10.6 11.0

 Heating Stove ........................... 2.8 8.2 3.0 3.2 1.8 0.9 19.9

 Other Equipment ....................... 0.3 Q Q Q Q Q 48.1

 LPG ............................................. 1.9 3.4 1.5 1.4 3.4 1.0 26.7

 Kerosene .................................... 1.8 2.9 1.6 2.4 1.7 Q 21.9

 Other ........................................... 0.4 Q Q Q Q Q 42.6

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.

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.

 • Percentages are calculated on unrounded numbers. • See "Glossary" for definition of terms used in this report.

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 HC3-2b. Space Heating by Year of Construction, 

 Percent of U.S. Households, 2001 

Space Heating

Characteristics

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

0.5 1.4 1.1 1.1 1.1 1.1 0.9

Total ............................................... 100.0 100.0 100.0 100.0 100.0 100.0 100.0 0.0

Heat Home ..................................... 99.1 99.7 99.8 99.1 98.4 98.1 99.1 NE

Do Not Heat Home ........................ 0.9 Q Q Q 1.6 1.9 Q 22.8

 No Heating Equipment .................. 0.5 Q Q Q 1.3 Q Q 29.6

 Have Equipment But

 Do Not Use It ................................ 0.4 Q Q Q Q Q Q 35.7

Main Heating Fuel and

Equipment

(Have and Use Equipment) ............ 99.1 99.7 99.8 99.1 98.4 98.1 99.1 NE

 Natural Gas ................................... 55.2 55.2 40.3 41.8 61.4 65.0 66.5 4.5

 Central Warm-Air Furnace .......... 41.9 52.7 35.9 35.8 47.4 48.8 37.6 5.6

 For One Housing Unit ............... 40.2 52.2 35.7 34.5 43.8 47.9 34.4 5.8

 For Two or More Units .............. 1.7 Q Q 1.3 3.6 Q 3.2 29.1

 Steam or Hot-Water System ....... 7.4 Q 2.9 3.6 6.8 6.9 17.4 15.3

 For One Housing Unit ............... 4.8 Q 1.7 1.4 3.3 5.3 12.0 22.4

 For Two or More Units .............. 2.6 Q 1.2 2.2 3.4 1.6 5.4 26.8

 Floor, Wall, or 

 Pipeless Furnace ........................ 2.9 Q Q 1.3 4.5 4.6 5.5 19.4

 Room Heater .............................. 2.6 Q Q 1.0 2.6 4.5 4.7 21.4

 Other ........................................... 0.5 Q Q Q Q Q 1.3 44.7

 Electricity ...................................... 28.9 35.9 49.5 44.6 21.7 15.7 10.5 7.4

 Built-In Electric Units ................... 5.7 4.9 6.2 11.7 4.9 3.3 3.4 16.8

 Central Warm-Air Furnace .......... 11.8 14.2 24.4 16.4 8.7 5.5 3.4 12.5

 For One Housing Unit ............... 11.1 13.8 22.2 15.5 8.3 5.2 3.2 13.2

 For Two or More Units .............. 0.7 Q 2.2 Q Q Q Q 47.4

 Heat Pump .................................. 9.7 15.3 17.5 14.9 6.7 5.0 1.5 16.2

 Other ........................................... 1.7 1.5 1.3 1.7 Q 2.0 2.1 27.5

 Fuel Oil ......................................... 7.5 1.6 2.5 4.2 8.0 12.4 13.9 15.8

 Steam or Hot-Water System ....... 4.1 1.0 1.0 2.1 4.6 5.5 8.5 17.6

 For One Housing Unit ............... 3.1 0.9 0.8 2.0 3.2 4.6 5.7 20.0

 For Two or More Units .............. 1.1 Q Q Q Q Q 2.8 22.2

 Central Warm-Air Furnace .......... 3.1 Q 1.3 1.9 2.6 6.2 5.2 22.5

 Other ........................................... 0.3 Q Q Q Q Q Q 48.1

 Wood ............................................ 1.9 1.0 2.2 2.5 1.9 1.7 2.0 24.6

 Heating Stove ............................. 1.4 0.9 1.4 1.8 1.6 Q 1.3 28.6

 Other ........................................... 0.5 Q Q Q Q Q 0.7 32.8

 LPG ............................................... 4.6 5.1 4.8 4.2 4.3 2.7 5.8 19.1

 Central Warm-Air Furnace .......... 3.1 4.8 3.9 3.3 2.2 1.6 2.9 23.2

 Room Heater .............................. 1.0 Q Q Q Q Q 1.9 28.4

 Other ........................................... 0.5 Q Q Q Q Q 1.0 35.9

 Kerosene ...................................... 0.8 Q Q 1.7 Q Q Q 28.3

 Other ............................................. 0.2 Q Q Q Q Q Q 79.8

Amount of Heat Provided

by Main Heating Equipment

 All or Almost All ............................. 90.2 93.3 92.5 88.0 89.6 88.0 89.9 1.2

 About Three-Fourths ..................... 4.0 3.4 2.4 5.1 3.8 5.1 4.1 16.0

 Closer to One-Half ........................ 3.5 1.7 3.4 4.1 3.4 3.2 4.4 19.6

 Don’t Know ................................... 1.4 1.4 1.6 1.9 1.6 1.8 0.7 27.6

See footnotes at end of table.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC3-2b. Space Heating by Year of Construction, 

 Percent of U.S. Households, 2001 (Continued)

Space Heating

Characteristics

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

0.5 1.4 1.1 1.1 1.1 1.1 0.9

Age of Main

Heating Equipment

 Less than 2 Years ......................... 8.1 14.6 7.0 7.3 8.0 8.6 5.6 12.6

 2 to 4 Years .................................. 12.5 26.7 7.3 10.2 10.4 12.3 10.7 9.9

 5 to 9 Years .................................. 20.0 46.1 11.3 15.6 15.2 18.6 17.2 7.9

 10 to 19 Years .............................. 22.4 10.9 55.7 12.4 16.7 19.4 18.0 7.5

 20 Years or More .......................... 24.8 Q 7.4 40.7 36.1 29.2 31.7 6.4

 Don’t Know ................................... 11.2 1.5 11.1 12.9 12.0 10.0 16.0 12.6

Secondary Heating Fuel and

Equipment

(more than one may apply)

 No ................................................. 67.4 66.8 68.2 66.8 66.6 67.5 68.0 2.6

 Yes ................................................ 31.7 32.9 31.6 32.3 31.8 30.5 31.2 5.5

 Natural Gas ................................. 5.2 9.1 5.5 3.9 3.9 5.9 3.9 16.3

 Fireplace ................................... 3.0 7.8 3.3 2.7 1.9 1.8 1.6 19.4

 Room Heater ............................ 0.9 Q Q Q Q 2.3 1.0 31.0

 Central Warm-Air Furnace ........ 0.7 Q 1.2 Q Q Q Q 31.5

 Other Equipment ....................... 0.6 Q Q Q Q Q 1.0 46.2

 Electricity .................................... 14.7 10.0 11.5 14.1 14.6 16.5 19.1 8.1

 Portable Heater ......................... 11.0 7.0 8.7 10.1 11.2 13.5 14.3 9.4

 Built-in Electric Units ................. 2.3 Q 1.5 2.3 2.5 2.5 3.3 23.1

 Heat Pump ................................ 1.1 Q Q 1.5 Q Q 1.0 31.9

 Other Equipment ....................... 0.6 Q Q Q Q Q Q 36.8

 Fuel Oil ....................................... 0.4 Q Q Q Q Q Q 43.3

 Wood .......................................... 11.6 12.3 14.4 14.5 12.7 10.5 7.3 9.9

 Fireplace ................................... 8.8 11.1 11.4 10.7 9.9 8.3 4.1 11.2

 Heating Stove ........................... 2.8 1.2 3.1 3.6 3.5 2.1 3.0 19.3

 Other Equipment ....................... 0.3 Q Q Q Q Q Q 46.5

 LPG ............................................. 1.9 2.5 2.5 2.2 1.4 Q 1.7 26.1

 Kerosene .................................... 1.8 2.0 Q 1.8 Q Q 2.4 22.6

 Other ........................................... 0.4 Q Q Q Q Q Q 41.2

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.

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. 

• Percentages are calculated on unrounded numbers. • See "Glossary" for definition of terms used in this report.

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 HC3-3b. Space Heating by Household Income, 

 Percent of U.S. Households, 2001 

Space Heating

Characteristics

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

0.6 1.3 1.1 1.0 0.9 1.4 1.0

Total ............................................... 100.0 100.0 100.0 100.0 100.0 100.0 100.0 0.0

Heat Home ..................................... 99.1 98.3 99.4 99.0 99.3 97.8 98.7 NE

Do Not Heat Home ........................ 0.9 1.7 Q 1.0 0.7 2.2 1.3 23.6

 No Heating Equipment .................. 0.5 Q Q Q 0.6 Q Q 34.3

 Have Equipment But

 Do Not Use It ................................ 0.4 Q Q Q Q 1.5 0.8 22.6

Main Heating Fuel and

Equipment

(Have and Use Equipment) ............ 99.1 98.3 99.4 99.0 99.3 97.8 98.7 NE

 Natural Gas ................................... 55.2 50.0 54.1 52.6 60.3 51.1 52.9 4.1

 Central Warm-Air Furnace .......... 41.9 28.4 39.0 40.7 51.1 27.9 33.2 5.2

 For One Housing Unit ............... 40.2 25.1 36.9 39.6 50.0 24.2 30.4 5.5

 For Two or More Units .............. 1.7 3.3 2.1 1.1 1.1 3.7 2.8 22.1

 Steam or Hot-Water System ....... 7.4 9.8 8.3 6.7 6.1 10.4 10.5 11.0

 For One Housing Unit ............... 4.8 5.7 4.7 4.1 4.9 6.0 6.0 15.4

 For Two or More Units .............. 2.6 4.1 3.6 2.6 1.2 4.5 4.5 19.2

 Floor, Wall, or 

 Pipeless Furnace ........................ 2.9 5.0 3.2 3.1 1.5 5.9 4.1 17.0

 Room Heater .............................. 2.6 5.7 3.0 1.7 1.4 5.7 4.3 18.2

 Other ........................................... 0.4 1.1 Q Q Q Q 0.8 29.3

 Electricity ...................................... 28.9 34.0 29.7 29.8 25.4 32.5 30.3 6.4

 Built-In Electric Units ................... 5.7 11.4 5.6 5.7 3.1 10.2 8.5 13.4

 Central Warm-Air Furnace .......... 11.8 12.7 14.2 12.5 9.4 13.5 12.6 10.4

 For One Housing Unit ............... 11.1 10.6 13.3 11.9 9.3 11.8 11.1 11.1

 For Two or More Units .............. 0.7 2.1 Q Q Q 1.7 1.5 36.5

 Heat Pump .................................. 9.7 6.6 7.0 10.9 12.0 5.5 6.0 16.7

 Other ........................................... 1.7 3.3 2.9 Q 0.9 3.2 3.2 22.1

 Fuel Oil ......................................... 7.5 5.2 7.3 8.0 8.4 5.0 6.7 12.9

 Steam or Hot-Water System ....... 4.1 2.9 3.8 4.3 4.8 2.7 3.2 14.6

 For One Housing Unit ............... 3.1 1.2 2.1 3.4 4.3 1.1 1.6 17.5

 For Two or More Units .............. 1.1 1.7 1.6 0.9 0.5 1.7 1.6 26.0

 Central Warm-Air Furnace .......... 3.1 2.0 3.4 3.5 3.1 1.9 3.2 20.0

 Other ........................................... 0.3 Q Q Q Q Q Q 42.0

 Wood ............................................ 1.9 2.0 1.3 2.5 1.8 1.8 1.7 21.0

 Heating Stove ............................. 1.4 1.8 1.1 1.5 1.2 1.8 1.5 23.3

 Other ........................................... 0.5 Q Q 1.0 0.5 Q Q 33.1

 LPG ............................................... 4.6 5.1 5.8 5.3 3.2 4.9 5.3 17.0

 Central Warm-Air Furnace .......... 3.1 2.2 3.7 4.1 2.6 1.8 3.0 20.1

 Room Heater .............................. 1.0 2.0 1.6 Q Q 2.0 1.5 27.0

 Other ........................................... 0.5 Q Q Q Q Q 0.7 34.2

 Kerosene ...................................... 0.8 2.0 1.2 0.5 Q 2.4 1.7 24.9

 Other ............................................. 0.2 Q Q Q Q Q Q 69.7

Amount of Heat Provided

by Main Heating Equipment

 All or Almost All ............................. 90.2 91.6 92.7 89.5 88.6 91.1 91.8 1.0

 About Three-Fourths ..................... 4.0 2.7 3.4 3.7 5.2 2.6 2.9 13.9

 Closer to One-Half ........................ 3.5 3.6 2.7 3.9 3.6 3.8 3.3 17.2

 Don’t Know ................................... 1.4 Q Q 1.9 2.0 Q 0.5 23.8

See footnotes at end of table.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC3-3b. Space Heating by Household Income, 

 Percent of U.S. Households, 2001 (Continued)

Space Heating

Characteristics

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

0.6 1.3 1.1 1.0 0.9 1.4 1.0

Age of Main

Heating Equipment

 Less than 2 Years ......................... 8.1 7.4 8.6 5.6 10.0 7.8 7.4 10.3

 2 to 4 Years .................................. 12.5 9.2 13.0 12.6 13.8 8.2 11.0 9.1

 5 to 9 Years .................................. 20.0 13.4 16.5 20.8 24.7 13.7 14.9 7.6

 10 to 19 Years .............................. 22.4 18.4 18.1 24.5 25.6 16.6 17.8 6.8

 20 Years or More .......................... 24.8 31.1 28.4 24.3 19.9 29.8 30.1 5.3

 Don’t Know ................................... 11.2 18.8 14.7 11.1 5.4 21.7 17.4 9.2

Secondary Heating Fuel and

Equipment

(more than one may apply)

 No ................................................. 67.4 77.2 75.2 67.7 57.8 77.4 76.0 2.0

 Yes ................................................ 31.7 21.2 24.1 31.3 41.6 20.4 22.7 5.2

 Natural Gas ................................. 5.2 2.6 3.2 4.6 8.1 2.4 2.7 17.8

 Fireplace ................................... 3.0 Q Q 2.4 5.7 Q 0.9 18.3

 Room Heater ............................ 0.9 Q 1.3 1.0 0.8 Q Q 28.3

 Central Warm-Air Furnace ........ 0.7 Q Q 1.0 1.0 Q Q 28.8

 Other Equipment ....................... 0.6 Q Q Q 0.6 Q 0.9 36.0

 Electricity .................................... 14.7 13.0 12.8 14.4 16.8 12.8 13.0 7.2

 Portable Heater ......................... 11.0 11.4 9.8 10.2 12.2 11.1 11.0 7.9

 Built-in Electric Units ................. 2.3 Q 2.0 2.7 2.8 Q 1.1 18.0

 Heat Pump ................................ 1.1 Q Q 1.2 1.8 Q Q 27.7

 Other Equipment ....................... 0.6 Q Q Q 0.5 Q 0.6 36.6

 Fuel Oil ....................................... 0.4 Q Q Q Q Q Q 37.9

 Wood .......................................... 11.6 3.7 6.8 10.8 18.9 3.2 5.0 10.8

 Fireplace ................................... 8.8 2.2 5.1 8.4 14.6 2.1 3.1 12.8

 Heating Stove ........................... 2.8 1.5 2.0 2.2 4.4 1.1 1.9 18.2

 Other Equipment ....................... 0.3 Q Q Q Q Q Q 40.7

 LPG ............................................. 1.9 1.8 1.5 1.9 2.3 1.8 1.6 21.6

 Kerosene .................................... 1.8 1.4 1.5 2.3 1.7 1.9 2.0 20.1

 Other ........................................... 0.4 Q Q Q 0.6 Q Q 37.0

1 Below 150 percent of poverty line or 60 percent of median State income.

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. 

• Percentages are calculated on unrounded numbers. • See "Glossary" for definition of terms used in this report.

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 HC3-4b. Space Heating by Type of Housing Unit,

 Percent of U.S. Households, 2001 

Space Heating

Characteristics

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 Home

0.5 0.6 1.4 1.4 1.6

Total ............................................... 100.0 100.0 100.0 100.0 100.0 0.0

Heat Home ..................................... 99.1 99.6 99.1 96.7 99.7 NE

Do Not Heat Home ........................ 0.9 0.4 Q 3.3 Q 18.3

 No Heating Equipment .................. 0.5 0.3 Q 1.6 Q 23.2

 Have Equipment But

 Do Not Use It ................................ 0.4 Q Q 1.7 Q 27.0

Main Heating Fuel and

Equipment

(Have and Use Equipment) ............ 99.1 99.6 99.1 96.7 99.7 NE

 Natural Gas ................................... 55.2 60.1 58.7 41.5 32.2 5.4

 Central Warm-Air Furnace .......... 41.9 49.2 30.9 21.2 30.2 7.4

 For One Housing Unit ............... 40.2 48.9 25.1 15.0 30.2 8.1

 For Two or More Units .............. 1.7 Q 5.8 6.2 Q 18.6

 Steam or Hot-Water System ....... 7.4 5.0 18.7 14.2 Q 11.9

 For One Housing Unit ............... 4.8 4.9 10.8 2.8 Q 18.2

 For Two or More Units .............. 2.6 Q 7.9 11.3 Q 15.6

 Floor, Wall, or 

 Pipeless Furnace ........................ 2.9 2.8 3.4 3.8 Q 18.4

 Room Heater .............................. 2.6 2.9 3.0 1.8 Q 23.4

 Other ........................................... 0.5 Q 2.6 Q Q 39.6

 Electricity ...................................... 28.9 23.0 32.8 46.6 43.1 7.2

 Built-In Electric Units ................... 5.7 3.2 9.0 16.2 Q 15.0

 Central Warm-Air Furnace .......... 11.8 7.8 14.6 23.1 22.4 11.3

 For One Housing Unit ............... 11.1 7.8 13.7 18.9 22.4 12.4

 For Two or More Units .............. 0.7 Q Q 4.2 Q 32.8

 Heat Pump .................................. 9.7 10.5 7.7 5.9 13.1 18.8

 Other ........................................... 1.7 1.4 Q 1.4 5.7 27.0

 Fuel Oil ......................................... 7.5 8.1 6.5 7.6 2.5 17.1

 Steam or Hot-Water System ....... 4.1 4.1 4.6 5.8 Q 15.1

 For One Housing Unit ............... 3.1 4.0 1.9 Q Q 20.9

 For Two or More Units .............. 1.1 Q 2.7 5.0 Q 19.0

 Central Warm-Air Furnace .......... 3.1 3.7 1.8 Q 2.5 27.2

 Other ........................................... 0.3 0.3 Q Q Q 52.6

 Wood ............................................ 1.9 2.6 Q Q Q 23.9

 Heating Stove ............................. 1.4 1.8 Q Q Q 27.4

 Other ........................................... 0.5 0.7 Q Q Q 34.8

 LPG ............................................... 4.6 5.2 Q Q 15.2 18.5

 Central Warm-Air Furnace .......... 3.1 3.4 Q Q 12.5 21.7

 Room Heater .............................. 1.0 1.2 Q Q Q 31.1

 Other ........................................... 0.5 0.6 Q Q Q 37.4

 Kerosene ...................................... 0.8 0.6 Q Q 4.9 29.2

 Other ............................................. 0.2 Q Q Q Q 79.1

Amount of Heat Provided

by Main Heating Equipment

 All or Almost All ............................. 90.2 89.0 94.0 92.7 92.3 1.1

 About Three-Fourths ..................... 4.0 4.8 2.3 1.4 3.5 18.3

 Closer to One-Half ........................ 3.5 4.1 Q 1.8 3.1 17.6

 Don’t Know ................................... 1.4 1.7 Q Q Q 25.0

See footnotes at end of table.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC3-4b. Space Heating by Type of Housing Unit,

 Percent of U.S. Households, 2001 (Continued)

Space Heating

Characteristics

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 Home

0.5 0.6 1.4 1.4 1.6

Age of Main

Heating Equipment

 Less than 2 Years ......................... 8.1 8.8 6.2 4.4 12.5 11.9

 2 to 4 Years .................................. 12.5 14.9 5.4 5.2 15.3 12.7

 5 to 9 Years .................................. 20.0 23.2 11.3 9.8 22.6 9.2

 10 to 19 Years .............................. 22.4 24.8 20.9 12.6 23.9 8.6

 20 Years or More .......................... 24.8 23.1 28.8 32.7 17.8 6.7

 Don’t Know ................................... 11.2 4.7 26.5 32.1 7.5 10.4

Secondary Heating Fuel and

Equipment

(more than one may apply)

 No ................................................. 67.4 61.4 79.1 86.2 69.1 2.2

 Yes ................................................ 31.7 38.2 20.0 10.5 30.5 6.7

 Natural Gas ................................. 5.2 6.2 3.7 2.6 Q 20.5

 Fireplace ................................... 3.0 3.6 Q Q Q 19.0

 Room Heater ............................ 0.9 1.2 Q Q Q 33.4

 Central Warm-Air Furnace ........ 0.7 0.9 Q Q Q 33.5

 Other Equipment ....................... 0.6 0.7 Q Q Q 46.7

 Electricity .................................... 14.7 16.7 13.3 6.6 14.6 8.4

 Portable Heater ......................... 11.0 12.4 10.7 5.2 11.6 9.5

 Built-in Electric Units ................. 2.3 2.8 Q Q Q 18.5

 Heat Pump ................................ 1.1 1.5 Q Q Q 30.2

 Other Equipment ....................... 0.6 0.5 Q Q Q 41.8

 Fuel Oil ....................................... 0.4 0.6 Q Q Q 43.0

 Wood .......................................... 11.6 15.3 3.5 2.0 6.7 15.8

 Fireplace ................................... 8.8 11.5 2.7 2.0 5.1 17.2

 Heating Stove ........................... 2.8 3.9 Q Q Q 17.4

 Other Equipment ....................... 0.3 0.4 Q Q Q 46.0

 LPG ............................................. 1.9 2.4 Q Q 3.9 26.3

 Kerosene .................................... 1.8 2.1 Q Q 3.8 22.6

 Other ........................................... 0.4 0.5 Q Q Q 40.7

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. • Percentages are calculated on unrounded numbers. • See "Glossary" for definition of terms used in this report.

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 HC3-5b. Space Heating by Type of Owner-Occupied Housing Unit,

 Percent of U.S. Households, 2001 

Space Heating

Characteristics

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 Home

0.4 0.4 1.6 3.0 1.1

Total ............................................... 100.0 100.0 100.0 100.0 100.0 0.0

Heat Home ..................................... 99.5 99.7 98.4 95.3 99.6 0.9

Do Not Heat Home ........................ 0.5 0.3 Q Q Q 40.8

 No Heating Equipment .................. 0.4 0.3 Q Q Q 34.7

 Have Equipment But

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

Main Heating Fuel and

Equipment

(Have and Use Equipment) ............ 99.5 99.7 98.4 95.3 99.6 0.9

 Natural Gas ................................... 56.8 59.7 52.8 35.4 33.0 9.3

 Central Warm-Air Furnace .......... 47.5 50.3 26.4 23.2 31.7 11.2

 For One Housing Unit ............... 47.2 50.1 21.1 21.4 31.7 11.6

 For Two or More Units .............. 0.4 Q Q Q Q 75.6

 Steam or Hot-Water System ....... 5.4 5.2 22.7 Q Q 22.3

 For One Housing Unit ............... 4.8 5.1 13.5 Q Q 23.5

 For Two or More Units .............. 0.6 Q Q Q Q 79.4

 Floor, Wall, or 

 Pipeless Furnace ........................ 1.7 1.9 Q Q Q 26.7

 Room Heater .............................. 1.9 2.1 Q Q Q 40.6

 Other ........................................... 0.3 Q Q Q Q 80.9

 Electricity ...................................... 25.3 23.1 28.9 47.9 41.7 13.6

 Built-In Electric Units ................... 3.1 3.0 Q 10.7 Q 24.4

 Central Warm-Air Furnace .......... 9.6 7.6 Q 31.3 22.6 18.6

 For One Housing Unit ............... 9.5 7.6 Q Q 22.6 19.6

 For Two or More Units .............. Q Q Q Q Q NF

 Heat Pump .................................. 11.3 11.4 Q Q 13.5 24.7

 Other ........................................... 1.3 1.1 Q Q Q 50.7

 Fuel Oil ......................................... 8.3 8.5 16.3 Q Q 23.5

 Steam or Hot-Water System ....... 4.4 4.4 10.7 Q Q 24.4

 For One Housing Unit ............... 4.0 4.4 Q Q Q 25.4

 For Two or More Units .............. 0.4 Q Q Q Q 101.0

 Central Warm-Air Furnace .......... 3.6 3.8 Q Q Q 35.9

 Other ........................................... 0.3 0.3 Q Q Q 75.6

 Wood ............................................ 2.3 2.5 Q Q Q 33.5

 Heating Stove ............................. 1.7 1.8 Q Q Q 36.9

 Other ........................................... 0.7 0.7 Q Q Q 47.9

 LPG ............................................... 5.8 5.2 Q Q 15.9 24.9

 Central Warm-Air Furnace .......... 4.1 3.5 Q Q 13.4 29.1

 Room Heater .............................. 1.1 1.1 Q Q Q 42.9

 Other ........................................... 0.5 0.6 Q Q Q 50.7

 Kerosene ...................................... 0.9 0.6 Q Q 4.8 42.3

 Other ............................................. Q Q Q Q Q NF

Amount of Heat Provided

by Main Heating Equipment

 All or Almost All ............................. 89.4 89.0 93.1 90.7 92.1 1.9

 About Three-Fourths ..................... 4.5 4.7 Q Q Q 20.9

 Closer to One-Half ........................ 3.9 4.1 Q Q Q 23.1

 Don’t Know ................................... 1.6 1.8 Q Q Q 35.1

See footnotes at end of table.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC3-5b. Space Heating by Type of Owner-Occupied Housing Unit,

 Percent of U.S. Households, 2001 (Continued)

Space Heating

Characteristics

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 Home

0.4 0.4 1.6 3.0 1.1

Age of Main

Heating Equipment

 Less than 2 Years ......................... 9.0 9.1 Q Q 12.5 14.8

 2 to 4 Years .................................. 14.7 15.2 Q Q 15.5 13.1

 5 to 9 Years .................................. 24.0 24.6 Q 18.1 25.1 11.0

 10 to 19 Years .............................. 26.0 25.8 39.1 24.4 24.6 10.9

 20 Years or More .......................... 22.6 22.2 34.8 36.1 18.1 10.2

 Don’t Know ................................... 3.2 2.9 Q 13.1 3.8 23.7

Secondary Heating Fuel and

Equipment

(more than one may apply)

 No ................................................. 61.7 60.2 79.8 82.1 65.7 3.9

 Yes ................................................ 37.8 39.5 18.5 13.2 33.9 9.6

 Natural Gas ................................. 6.2 6.7 Q Q Q 21.0

 Fireplace ................................... 3.6 4.0 Q Q Q 26.7

 Room Heater ............................ 1.2 1.3 Q Q Q 41.2

 Central Warm-Air Furnace ........ 0.9 1.0 Q Q Q 48.1

 Other Equipment ....................... 0.6 0.5 Q Q Q 63.0

 Electricity .................................... 16.1 16.6 Q Q 15.6 11.2

 Portable Heater ......................... 11.7 11.9 Q Q 12.6 12.7

 Built-in Electric Units ................. 2.7 2.9 Q Q Q 22.9

 Heat Pump ................................ 1.5 1.7 Q Q Q 41.8

 Other Equipment ....................... 0.6 0.6 Q Q Q 61.2

 Fuel Oil ....................................... 0.7 0.7 Q Q Q 56.6

 Wood .......................................... 15.5 16.7 Q Q 7.5 15.8

 Fireplace ................................... 11.6 12.5 Q Q 5.9 17.7

 Heating Stove ........................... 3.9 4.3 Q Q Q 23.2

 Other Equipment ....................... 0.4 0.4 Q Q Q 62.0

 LPG ............................................. 2.5 2.4 Q Q 4.4 35.2

 Kerosene .................................... 2.0 1.9 Q Q 4.5 31.8

 Other ........................................... 0.5 0.5 Q Q Q 56.1

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. • Percentages are calculated on unrounded numbers. • See "Glossary" for definition of terms used in this report.

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 HC3-6b. Space Heating by Type of Rented Housing Unit,

 Percent of U.S. Households, 2001 

Space Heating

Characteristics

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 Home

0.6 0.8 1.0 0.9 2.4

Total ............................................... 100.0 100.0 100.0 100.0 100.0 0.0

Heat Home ..................................... 98.2 99.2 99.3 96.9 100.0 NE

Do Not Heat Home ........................ 1.8 Q Q 3.1 Q 21.0

 No Heating Equipment .................. 0.7 Q Q Q Q 82.1

 Have Equipment But

 Do Not Use It ................................ 1.1 Q Q 1.9 Q 35.6

Main Heating Fuel and

Equipment

(Have and Use Equipment) ............ 98.2 99.2 99.3 96.9 100.0 NE

 Natural Gas ................................... 51.8 62.4 60.3 42.2 28.3 7.2

 Central Warm-Air Furnace .......... 30.0 42.3 32.1 21.0 23.0 11.4

 For One Housing Unit ............... 25.4 41.4 26.2 14.3 23.0 12.8

 For Two or More Units .............. 4.6 Q 5.9 6.7 Q 25.4

 Steam or Hot-Water System ....... 11.5 3.9 17.6 14.6 Q 17.3

 For One Housing Unit ............... 4.7 3.7 10.1 3.1 Q 30.2

 For Two or More Units .............. 6.8 Q 7.5 11.5 Q 21.0

 Floor, Wall, or 

 Pipeless Furnace ........................ 5.5 8.3 4.3 4.2 Q 24.9

 Room Heater .............................. 4.1 7.6 3.6 2.0 Q 30.4

 Other ........................................... 0.8 Q 2.6 Q Q 52.5

 Electricity ...................................... 36.6 22.7 33.9 46.4 50.2 9.0

 Built-In Electric Units ................... 11.2 4.5 10.0 16.8 Q 21.8

 Central Warm-Air Furnace .......... 16.5 9.4 14.4 22.2 Q 18.5

 For One Housing Unit ............... 14.4 9.4 13.3 17.9 Q 21.3

 For Two or More Units .............. 2.1 Q Q 4.3 Q 41.5

 Heat Pump .................................. 6.2 5.2 7.6 5.9 Q 31.3

 Other ........................................... 2.6 3.7 Q 1.5 Q 36.3

 Fuel Oil ......................................... 5.8 5.5 3.8 7.1 Q 19.9

 Steam or Hot-Water System ....... 3.6 2.1 2.9 5.2 Q 21.7

 For One Housing Unit ............... 1.1 2.0 Q Q Q 29.2

 For Two or More Units .............. 2.5 Q 1.9 4.6 Q 23.2

 Central Warm-Air Furnace .......... 1.9 3.1 Q Q Q 32.7

 Other ........................................... Q Q Q Q Q NF

 Wood ............................................ 1.0 2.9 Q Q Q 40.8

 Heating Stove ............................. 0.7 2.2 Q Q Q 49.4

 Other ........................................... Q Q Q Q Q NF

 LPG ............................................... 2.1 4.9 Q Q Q 31.5

 Central Warm-Air Furnace .......... 1.1 2.2 Q Q Q 46.0

 Room Heater .............................. 0.7 Q Q Q Q 54.6

 Other ........................................... Q Q Q Q Q NF

 Kerosene ...................................... Q Q Q Q Q NF

 Other ............................................. Q Q Q Q Q NF

Amount of Heat Provided

by Main Heating Equipment

 All or Almost All ............................. 91.9 88.4 94.2 93.0 93.2 1.8

 About Three-Fourths ..................... 2.8 5.3 Q 1.4 Q 31.3

 Closer to One-Half ........................ 2.6 4.6 Q 1.7 Q 29.6

 Don’t Know ................................... 0.9 Q Q Q Q 44.2

See footnotes at end of table.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC3-6b. Space Heating by Type of Rented Housing Unit,

 Percent of U.S. Households, 2001 (Continued)

Space Heating

Characteristics

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 Home

0.6 0.8 1.0 0.9 2.4

Age of Main

Heating Equipment

 Less than 2 Years ......................... 6.3 7.5 6.9 4.7 Q 21.1

 2 to 4 Years .................................. 7.9 13.0 4.3 5.5 Q 26.4

 5 to 9 Years .................................. 11.6 15.3 12.2 8.8 Q 19.3

 10 to 19 Years .............................. 14.8 18.8 15.8 11.2 20.3 15.7

 20 Years or More .......................... 29.6 28.8 27.1 32.3 Q 9.3

 Don’t Know ................................... 28.1 15.7 32.9 34.3 26.6 11.6

Secondary Heating Fuel and

Equipment

(more than one may apply)

 No ................................................. 79.5 68.8 79.0 86.7 86.7 2.8

 Yes ................................................ 18.7 30.4 20.4 10.2 Q 12.0

 Natural Gas ................................. 3.0 3.5 Q Q Q 39.0

 Fireplace ................................... 1.8 Q Q Q Q 58.5

 Room Heater ............................ Q Q Q Q Q NF

 Central Warm-Air Furnace ........ Q Q Q Q Q NF

 Other Equipment ....................... Q Q Q Q Q NF

 Electricity .................................... 11.7 17.6 15.1 6.2 Q 14.0

 Portable Heater ......................... 9.8 15.6 12.2 4.8 Q 15.0

 Built-in Electric Units ................. 1.3 2.1 Q Q Q 47.0

 Heat Pump ................................ Q Q Q Q Q NF

 Other Equipment ....................... Q Q Q Q Q NF

 Fuel Oil ....................................... Q Q Q Q Q NF

 Wood .......................................... 3.4 7.0 Q 1.5 Q 32.2

 Fireplace ................................... 2.8 5.6 Q 1.5 Q 35.0

 Heating Stove ........................... 0.5 Q Q Q Q 57.1

 Other Equipment ....................... Q Q Q Q Q NF

 LPG ............................................. 0.8 2.3 Q Q Q 43.7

 Kerosene .................................... 1.2 3.1 Q Q Q 40.5

 Other ........................................... Q Q Q Q Q NF

NE = RSE row factor not estimated because RSE’s for all statistics in this row are between 0.0 and 1.0 percent.

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. • Percentages are calculated on unrounded numbers. • See "Glossary" for definition of terms used in this report.

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 HC3-7b. Space Heating by Four Most Populated States, 

 Percent of U.S. Households, 2001 

Space Heating

Characteristics

RSE Column Factor:

Total

U.S.

Four Most Populated States

RSE

Row

Factors

New York California Texas Florida

0.5 1.1 1.0 1.2 1.6

Total .............................................................. 100.0 100.0 100.0 100.0 100.0 0.0

Heat Home .................................................... 99.1 99.7 97.4 100.0 97.7 NE

Do Not Heat Home ....................................... 0.9 Q 2.6 Q 2.3 20.7

 No Heating Equipment ................................ 0.5 Q 1.0 Q Q 41.3

 Have Equipment But

 Do Not Use It ............................................... 0.4 Q 1.7 Q Q 32.8

Main Heating Fuel and Equipment

(Have and Use Equipment) ........................... 99.1 99.7 97.4 100.0 97.7 NE

 Natural Gas ................................................. 55.2 59.6 72.1 52.4 15.2 7.5

 Central Warm-Air Furnace ........................ 41.9 29.9 46.9 41.7 15.2 11.3

 For One Housing Unit .............................. 40.2 25.3 45.0 40.4 15.2 11.4

 For Two or More Units ............................. 1.7 4.6 1.8 Q Q 34.7

 Steam or Hot-Water System ..................... 7.4 27.1 2.2 Q Q 11.3

 For One Housing Unit .............................. 4.8 15.8 0.8 Q Q 24.0

 For Two or More Units ............................. 2.6 11.4 Q Q Q 25.6

 Floor, Wall, or 

 Pipeless Furnace ....................................... 2.9 Q 15.7 Q Q 15.5

 Room Heater ............................................. 2.6 Q 6.1 7.1 Q 23.3

 Other ......................................................... 0.5 Q 1.3 Q Q 29.0

 Electricity ..................................................... 28.9 6.7 18.3 44.7 81.4 10.0

 Built-In Electric Units ................................. 5.7 Q 3.5 1.8 Q 25.1

 Central Warm-Air Furnace ........................ 11.8 Q 6.9 31.6 46.6 14.5

 For One Housing Unit .............................. 11.1 Q 6.8 27.5 46.6 16.3

 For Two or More Units ............................. 0.7 Q Q 4.1 Q 49.4

 Heat Pump ................................................ 9.7 Q 5.1 8.1 30.0 15.2

 Other ......................................................... 1.7 Q 2.7 3.2 4.2 30.2

 Fuel Oil ........................................................ 7.5 29.1 Q Q Q 18.1

 Steam or Hot-Water System ..................... 4.1 21.4 Q Q Q 17.8

 For One Housing Unit .............................. 3.1 10.9 Q Q Q 22.3

 For Two or More Units ............................. 1.1 10.5 Q Q Q 21.4

 Central Warm-Air Furnace ........................ 3.1 6.3 Q Q Q 29.2

 Other ......................................................... 0.3 1.4 Q Q Q 41.0

 Wood ........................................................... 1.9 2.2 2.7 Q Q 23.8

 Heating Stove ............................................ 1.4 1.0 1.4 Q Q 22.3

 Other ......................................................... 0.5 1.2 1.4 Q Q 33.6

 LPG ............................................................. 4.6 Q 2.4 2.5 Q 30.7

 Central Warm-Air Furnace ........................ 3.1 Q 1.7 1.0 Q 35.3

 Room Heater ............................................. 1.0 Q Q Q Q 34.1

 Other ......................................................... 0.5 Q 0.5 Q Q 35.1

 Kerosene ..................................................... 0.8 0.3 1.0 Q Q 10.0

 Other ........................................................... 0.2 Q Q Q Q 89.7

Amount of Heat Provided

by Main Heating Equipment

 All or Almost All ........................................... 90.2 90.1 84.3 91.6 94.5 1.7

 About Three-Fourths ................................... 4.0 4.7 5.7 3.4 Q 18.8

 Closer to One-Half ....................................... 3.5 4.5 5.4 2.4 Q 23.6

 Don’t Know .................................................. 1.4 Q 2.0 2.6 Q 31.0

See footnotes at end of table.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC3-7b. Space Heating by Four Most Populated States, 

 Percent of U.S. Households, 2001 (Continued)

Space Heating

Characteristics

RSE Column Factor:

Total

U.S.

Four Most Populated States

RSE

Row

Factors

New York California Texas Florida

0.5 1.1 1.0 1.2 1.6

Age of Main

Heating Equipment

 Less than 2 Years ....................................... 8.1 7.2 6.5 10.9 8.7 17.3

 2 to 4 Years ................................................. 12.5 5.9 9.0 11.9 14.2 13.5

 5 to 9 Years ................................................. 20.0 16.9 12.4 22.5 32.8 12.6

 10 to 19 Years ............................................. 22.4 15.7 19.3 19.1 29.4 11.4

 20 Years or More ......................................... 24.8 34.3 37.6 20.2 7.5 7.5

 Don’t Know .................................................. 11.2 19.6 12.7 15.4 5.0 16.2

Secondary Heating Fuel and Equipment

(more than one may apply)

 No ................................................................ 67.4 69.8 64.5 63.1 79.8 3.4

 Yes .............................................................. 31.7 29.8 32.9 36.9 17.8 8.0

 Natural Gas ............................................... 5.2 6.6 6.5 10.9 1.4 16.4

 Fireplace .................................................. 3.0 5.7 5.0 4.7 1.4 15.9

 Room Heater ........................................... 0.9 Q Q 2.3 Q 39.6

 Central Warm-Air Furnace ...................... 0.7 Q 0.5 Q Q 33.0

 Other Equipment ..................................... 0.6 Q Q 3.6 Q 41.5

 Electricity ................................................... 14.7 14.1 15.3 16.4 6.6 10.3

 Portable Heater ....................................... 11.0 11.8 12.1 14.7 4.0 13.2

 Built-in Electric Units ............................... 2.3 1.6 2.2 Q Q 26.2

 Heat Pump .............................................. 1.1 Q 1.1 Q Q 28.8

 Other Equipment ..................................... 0.6 Q Q Q 1.0 24.3

 Fuel Oil ...................................................... 0.4 1.6 Q Q Q 34.6

 Wood ......................................................... 11.6 7.5 16.1 13.4 8.5 17.4

 Fireplace .................................................. 8.8 5.0 14.1 11.6 8.1 17.1

 Heating Stove .......................................... 2.8 2.1 1.6 Q Q 26.2

 Other Equipment ..................................... 0.3 Q Q 0.9 Q 36.2

 LPG ........................................................... 1.9 1.0 Q Q Q 37.3

 Kerosene ................................................... 1.8 2.2 Q Q Q 30.7

 Other ......................................................... 0.4 Q Q Q Q 46.3

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. 

• Percentages are calculated on unrounded numbers. • See "Glossary" for definition of terms used in this report.

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 HC3-8b. Space Heating by Urban/Rural Location, 

 Percent of U.S. Households, 2001 

Space Heating

Characteristics

RSE Column Factor:

Total

Urban/Rural Location1

RSE

Row

Factors

City Town Suburbs Rural

0.6 0.9 1.2 1.3 1.1

Total .............................................................. 100.0 100.0 100.0 100.0 100.0 0.0

Heat Home .................................................... 99.1 98.5 99.6 99.7 99.5 NE

Do Not Heat Home ....................................... 0.9 1.5 0.4 0.3 0.5 26.0

 No Heating Equipment ................................ 0.5 0.8 0.3 Q 0.3 33.5

 Have Equipment But

 Do Not Use It ............................................... 0.4 0.7 Q Q Q 29.0

Main Heating Fuel and Equipment

(Have and Use Equipment) ........................... 99.1 98.5 99.6 99.7 99.5 NE

 Natural Gas ................................................. 55.2 64.9 55.6 61.9 20.0 4.5

 Central Warm-Air Furnace ........................ 41.9 45.6 40.2 56.0 16.8 5.4

 For One Housing Unit .............................. 40.2 42.9 39.8 54.1 16.6 5.6

 For Two or More Units ............................. 1.7 2.6 Q 1.9 Q 22.1

 Steam or Hot-Water System ..................... 7.4 10.1 9.3 4.1 1.7 13.4

 For One Housing Unit .............................. 4.8 6.0 6.5 3.0 1.7 17.4

 For Two or More Units ............................. 2.6 4.1 2.7 1.0 Q 22.1

 Floor, Wall, or 

 Pipeless Furnace ....................................... 2.9 4.6 2.8 0.9 0.5 18.4

 Room Heater ............................................. 2.6 3.8 3.0 0.7 1.1 21.7

 Other ......................................................... 0.5 0.8 Q Q Q 38.0

 Electricity ..................................................... 28.9 27.4 25.2 29.7 36.2 6.3

 Built-In Electric Units ................................. 5.7 5.4 7.5 3.8 7.0 14.1

 Central Warm-Air Furnace ........................ 11.8 11.9 9.4 12.9 12.6 10.7

 For One Housing Unit .............................. 11.1 10.7 9.1 12.1 12.6 11.4

 For Two or More Units ............................. 0.7 1.1 Q Q Q 40.2

 Heat Pump ................................................ 9.7 8.1 5.9 12.3 14.9 13.7

 Other ......................................................... 1.7 1.9 2.4 0.6 1.7 24.5

 Fuel Oil ........................................................ 7.5 4.8 10.9 6.2 12.9 13.5

 Steam or Hot-Water System ..................... 4.1 3.1 5.4 3.7 6.1 16.5

 For One Housing Unit .............................. 3.1 1.4 4.7 3.4 5.8 18.0

 For Two or More Units ............................. 1.1 1.8 0.7 Q Q 23.1

 Central Warm-Air Furnace ........................ 3.1 1.5 5.1 2.4 6.2 21.0

 Other ......................................................... 0.3 0.2 Q Q 0.6 39.8

 Wood ........................................................... 1.9 0.5 1.8 0.6 7.5 21.4

 Heating Stove ............................................ 1.4 0.2 1.5 0.5 5.5 24.8

 Other ......................................................... 0.5 0.3 Q Q 2.0 31.8

 LPG ............................................................. 4.6 0.6 5.1 1.0 19.5 20.2

 Central Warm-Air Furnace ........................ 3.1 0.4 3.2 0.8 13.4 25.0

 Room Heater ............................................. 1.0 Q 1.0 Q 4.3 22.3

 Other ......................................................... 0.5 Q 0.9 Q 1.8 26.8

 Kerosene ..................................................... 0.8 Q Q Q 3.1 22.3

 Other ........................................................... 0.2 0.3 Q Q Q 60.9

Amount of Heat Provided

by Main Heating Equipment

 All or Almost All ........................................... 90.2 91.7 90.1 93.1 82.7 1.0

 About Three-Fourths ................................... 4.0 2.7 5.3 1.8 8.8 12.9

 Closer to One-Half ....................................... 3.5 2.8 3.7 2.5 6.4 14.8

 Don’t Know .................................................. 1.4 1.3 0.4 2.3 1.6 24.2

See footnotes at end of table.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC3-8b. Space Heating by Urban/Rural Location, 

 Percent of U.S. Households, 2001 (Continued)

Space Heating

Characteristics

RSE Column Factor:

Total

Urban/Rural Location1

RSE

Row

Factors

City Town Suburbs Rural

0.6 0.9 1.2 1.3 1.1

Age of Main

Heating Equipment

 Less than 2 Years ....................................... 8.1 6.3 9.1 8.8 11.5 10.0

 2 to 4 Years ................................................. 12.5 11.0 13.1 12.7 15.8 8.6

 5 to 9 Years ................................................. 20.0 17.0 17.4 25.9 24.2 6.2

 10 to 19 Years ............................................. 22.4 19.3 24.2 25.4 25.8 6.4

 20 Years or More ......................................... 24.8 28.8 25.9 19.9 18.5 5.6

 Don’t Know .................................................. 11.2 16.1 10.0 7.1 3.7 11.7

Secondary Heating Fuel and Equipment

(more than one may apply)

 No ................................................................ 67.4 74.5 62.4 66.7 53.6 2.5

 Yes .............................................................. 31.7 24.1 37.2 32.9 45.9 4.7

 Natural Gas ............................................... 5.2 4.9 5.9 7.0 3.2 14.5

 Fireplace .................................................. 3.0 2.7 3.1 4.8 1.9 18.9

 Room Heater ........................................... 0.9 0.8 1.6 0.8 Q 27.8

 Central Warm-Air Furnace ...................... 0.7 0.5 0.9 1.3 Q 29.4

 Other Equipment ..................................... 0.6 1.1 Q Q Q 33.3

 Electricity ................................................... 14.7 12.8 21.0 13.9 14.5 6.8

 Portable Heater ....................................... 11.0 10.0 15.7 10.7 9.6 7.7

 Built-in Electric Units ............................... 2.3 1.7 3.4 1.9 3.1 16.7

 Heat Pump .............................................. 1.1 0.9 1.3 1.0 1.7 26.8

 Other Equipment ..................................... 0.6 0.4 0.9 Q 0.8 34.3

 Fuel Oil ...................................................... 0.4 Q Q Q 1.1 30.4

 Wood ......................................................... 11.6 7.3 11.3 14.3 20.8 8.4

 Fireplace .................................................. 8.8 6.5 6.9 12.2 13.0 9.3

 Heating Stove .......................................... 2.8 0.7 4.7 1.8 8.1 17.3

 Other Equipment ..................................... 0.3 Q Q 0.3 0.8 31.6

 LPG ........................................................... 1.9 0.5 1.1 0.9 7.9 27.6

 Kerosene ................................................... 1.8 0.8 2.0 1.4 4.6 22.3

 Other ......................................................... 0.4 0.1 Q Q 1.2 37.3

1 Based on the household respondent’s description rather than the Federal Government definition.

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. 

• Percentages are calculated on unrounded numbers. • See "Glossary" for definition of terms used in this report.

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 HC3-9b. Space Heating by Northeast Census Region, 

 Percent of U.S. Households, 2001 

Space Heating

Characteristics

RSE Column Factor:

Total

U.S.

Northeast Census Region

RSE

Row

Factors

Total

Census Division

Middle Atlantic New England

0.5 1.0 1.2 1.7

Total .............................................................. 100.0 100.0 100.0 100.0 0.0

Heat Home .................................................... 99.1 99.4 99.2 100.0 NE

Do Not Heat Home ....................................... 0.9 Q Q Q 19.9

 No Heating Equipment ................................ 0.5 Q Q Q 39.5

 Have Equipment But

 Do Not Use It ............................................... 0.4 Q Q Q 38.7

Main Heating Fuel and Equipment

(Have and Use Equipment) ........................... 99.1 99.4 99.2 100.0 NE

 Natural Gas ................................................. 55.2 51.8 58.1 34.7 8.6

 Central Warm-Air Furnace ........................ 41.9 28.6 34.2 13.1 10.4

 For One Housing Unit .............................. 40.2 25.6 30.7 11.5 11.8

 For Two or More Units ............................. 1.7 3.0 3.4 Q 26.4

 Steam or Hot-Water System ..................... 7.4 21.4 22.2 19.1 13.2

 For One Housing Unit .............................. 4.8 14.3 13.9 15.7 18.2

 For Two or More Units ............................. 2.6 7.1 8.4 3.5 20.4

 Floor, Wall, or 

 Pipeless Furnace ....................................... 2.9 Q Q Q 21.2

 Room Heater ............................................. 2.6 Q Q Q 24.2

 Other ......................................................... 0.5 Q Q Q 52.2

 Electricity ..................................................... 28.9 11.3 12.2 8.6 11.2

 Built-In Electric Units ................................. 5.7 6.7 6.6 7.1 17.7

 Central Warm-Air Furnace ........................ 11.8 1.5 2.0 Q 22.2

 For One Housing Unit .............................. 11.1 Q Q Q 14.9

 For Two or More Units ............................. 0.7 Q Q Q 57.9

 Heat Pump ................................................ 9.7 1.7 2.4 Q 28.4

 Other ......................................................... 1.7 1.2 Q Q 30.4

 Fuel Oil ........................................................ 7.5 30.8 24.0 49.5 12.4

 Steam or Hot-Water System ..................... 4.1 20.2 15.6 33.0 10.7

 For One Housing Unit .............................. 3.1 14.6 9.8 27.7 13.0

 For Two or More Units ............................. 1.1 5.6 5.7 5.3 17.8

 Central Warm-Air Furnace ........................ 3.1 9.8 7.5 16.3 21.2

 Other ......................................................... 0.3 Q Q Q 52.1

 Wood ........................................................... 1.9 1.6 1.6 Q 18.8

 Heating Stove ............................................ 1.4 0.9 Q Q 23.3

 Other ......................................................... 0.5 Q Q Q 39.3

 LPG ............................................................. 4.6 1.7 1.5 2.5 25.4

 Central Warm-Air Furnace ........................ 3.1 1.5 1.5 Q 35.7

 Room Heater ............................................. 1.0 Q Q Q 32.9

 Other ......................................................... 0.5 Q Q Q 42.5

 Kerosene ..................................................... 0.8 1.6 1.3 Q 33.3

 Other ........................................................... 0.2 Q Q Q 86.5

Amount of Heat Provided

by Main Heating Equipment

 All or Almost All ........................................... 90.2 90.5 91.0 89.1 1.4

 About Three-Fourths ................................... 4.0 4.2 3.8 5.1 14.1

 Closer to One-Half ....................................... 3.5 3.7 3.6 3.9 19.7

 Don’t Know .................................................. 1.4 1.0 Q Q 25.8

See footnotes at end of table.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC3-9b. Space Heating by Northeast Census Region, 

 Percent of U.S. Households, 2001 (Continued)

Space Heating

Characteristics

RSE Column Factor:

Total

U.S.

Northeast Census Region

RSE

Row

Factors

Total

Census Division

Middle Atlantic New England

0.5 1.0 1.2 1.7

Age of Main

Heating Equipment

 Less than 2 Years ....................................... 8.1 6.5 6.3 7.0 13.7

 2 to 4 Years ................................................. 12.5 8.2 7.9 9.1 10.7

 5 to 9 Years ................................................. 20.0 16.1 16.9 13.9 11.0

 10 to 19 Years ............................................. 22.4 23.6 23.6 23.5 8.5

 20 Years or More ......................................... 24.8 29.5 29.3 30.3 4.8

 Don’t Know .................................................. 11.2 15.4 15.2 16.2 12.1

Secondary Heating Fuel and Equipment

(more than one may apply)

 No ................................................................ 67.4 71.4 72.6 68.2 2.7

 Yes .............................................................. 31.7 28.0 26.6 31.8 6.6

 Natural Gas ............................................... 5.2 3.7 4.8 Q 19.9

 Fireplace .................................................. 3.0 2.7 3.7 Q 21.5

 Room Heater ........................................... 0.9 Q Q Q 37.3

 Central Warm-Air Furnace ...................... 0.7 Q Q Q 36.1

 Other Equipment ..................................... 0.6 Q Q Q 48.5

 Electricity ................................................... 14.7 13.4 13.1 14.2 8.0

 Portable Heater ....................................... 11.0 10.4 9.9 11.9 10.2

 Built-in Electric Units ............................... 2.3 2.1 2.3 Q 19.6

 Heat Pump .............................................. 1.1 Q Q Q 33.3

 Other Equipment ..................................... 0.6 Q Q Q 39.9

 Fuel Oil ...................................................... 0.4 1.0 Q Q 34.9

 Wood ......................................................... 11.6 9.6 7.4 15.4 13.8

 Fireplace .................................................. 8.8 4.9 4.2 6.5 12.8

 Heating Stove .......................................... 2.8 4.6 2.7 9.7 19.6

 Other Equipment ..................................... 0.3 Q Q Q 50.5

 LPG ........................................................... 1.9 1.3 Q 2.5 27.6

 Kerosene ................................................... 1.8 1.9 1.5 Q 29.8

 Other ......................................................... 0.4 0.9 Q Q 41.1

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. 

• Percentages are calculated on unrounded numbers. • See "Glossary" for definition of terms used in this report.

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 HC3-10b. Space Heating by Midwest Census Region, 

 Percent of U.S. Households, 2001 

Space Heating

Characteristics

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 1.6

Total .............................................................. 100.0 100.0 100.0 100.0 0.0

Heat Home .................................................... 99.1 99.9 99.9 100.0 NE

Do Not Heat Home ....................................... 0.9 Q Q Q 19.8

 No Heating Equipment ................................ 0.5 Q Q Q 39.2

 Have Equipment But

 Do Not Use It ............................................... 0.4 Q Q Q 38.4

Main Heating Fuel and Equipment

(Have and Use Equipment) ........................... 99.1 99.9 99.9 100.0 NE

 Natural Gas ................................................. 55.2 77.3 80.9 69.0 4.5

 Central Warm-Air Furnace ........................ 41.9 66.6 68.8 61.5 4.7

 For One Housing Unit .............................. 40.2 64.3 66.4 59.6 5.1

 For Two or More Units ............................. 1.7 2.3 2.4 Q 28.5

 Steam or Hot-Water System ..................... 7.4 9.2 10.3 6.7 12.6

 For One Housing Unit .............................. 4.8 5.7 5.8 5.6 18.5

 For Two or More Units ............................. 2.6 3.5 4.5 Q 26.6

 Floor, Wall, or 

 Pipeless Furnace ....................................... 2.9 Q Q Q 21.0

 Room Heater ............................................. 2.6 Q Q Q 24.0

 Other ......................................................... 0.5 Q Q Q 51.8

 Electricity ..................................................... 28.9 10.3 10.0 11.2 13.6

 Built-In Electric Units ................................. 5.7 4.5 5.1 3.2 19.8

 Central Warm-Air Furnace ........................ 11.8 3.4 2.5 5.3 23.0

 For One Housing Unit .............................. 11.1 2.9 1.8 5.3 23.2

 For Two or More Units ............................. 0.7 Q Q Q 57.5

 Heat Pump ................................................ 9.7 2.0 1.7 2.7 26.7

 Other ......................................................... 1.7 Q Q Q 29.0

 Fuel Oil ........................................................ 7.5 3.2 2.5 4.9 14.1

 Steam or Hot-Water System ..................... 4.1 Q Q Q 18.0

 For One Housing Unit .............................. 3.1 Q Q Q 20.9

 For Two or More Units ............................. 1.1 Q Q Q 28.8

 Central Warm-Air Furnace ........................ 3.1 2.6 2.1 3.8 17.3

 Other ......................................................... 0.3 Q Q Q 51.7

 Wood ........................................................... 1.9 1.5 Q 2.5 30.3

 Heating Stove ............................................ 1.4 1.1 Q Q 34.4

 Other ......................................................... 0.5 Q Q Q 39.0

 LPG ............................................................. 4.6 7.5 5.4 12.4 23.8

 Central Warm-Air Furnace ........................ 3.1 6.3 4.8 9.9 25.4

 Room Heater ............................................. 1.0 Q Q Q 32.7

 Other ......................................................... 0.5 0.8 Q Q 38.4

 Kerosene ..................................................... 0.8 Q Q Q 35.0

 Other ........................................................... 0.2 Q Q Q 85.9

Amount of Heat Provided

by Main Heating Equipment

 All or Almost All ........................................... 90.2 93.8 94.7 91.8 0.9

 About Three-Fourths ................................... 4.0 2.8 2.4 3.8 12.4

 Closer to One-Half ....................................... 3.5 2.1 Q 3.5 21.7

 Don’t Know .................................................. 1.4 1.3 1.4 Q 26.6

See footnotes at end of table.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC3-10b. Space Heating by Midwest Census Region, 

 Percent of U.S. Households, 2001 (Continued)

Space Heating

Characteristics

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 1.6

Age of Main

Heating Equipment

 Less than 2 Years ....................................... 8.1 8.0 8.1 7.8 14.0

 2 to 4 Years ................................................. 12.5 12.0 13.6 8.6 9.2

 5 to 9 Years ................................................. 20.0 20.6 19.8 22.4 7.3

 10 to 19 Years ............................................. 22.4 22.8 22.1 24.2 8.4

 20 Years or More ......................................... 24.8 25.4 25.1 25.9 7.1

 Don’t Know .................................................. 11.2 11.1 11.1 11.1 12.3

Secondary Heating Fuel and Equipment

(more than one may apply)

 No ................................................................ 67.4 72.1 74.6 66.2 2.7

 Yes .............................................................. 31.7 27.8 25.2 33.8 6.5

 Natural Gas ............................................... 5.2 3.4 3.6 3.0 19.3

 Fireplace .................................................. 3.0 2.6 3.0 Q 23.8

 Room Heater ........................................... 0.9 Q Q Q 37.0

 Central Warm-Air Furnace ...................... 0.7 Q Q Q 35.8

 Other Equipment ..................................... 0.6 Q Q Q 48.1

 Electricity ................................................... 14.7 15.5 14.2 18.4 8.9

 Portable Heater ....................................... 11.0 11.2 9.9 14.3 8.5

 Built-in Electric Units ............................... 2.3 3.4 3.1 4.2 21.2

 Heat Pump .............................................. 1.1 1.0 Q Q 37.0

 Other Equipment ..................................... 0.6 Q Q Q 39.6

 Fuel Oil ...................................................... 0.4 Q Q Q 46.6

 Wood ......................................................... 11.6 8.7 7.2 12.0 10.9

 Fireplace .................................................. 8.8 6.2 5.7 7.3 10.8

 Heating Stove .......................................... 2.8 2.9 2.2 4.8 18.2

 Other Equipment ..................................... 0.3 Q Q Q 50.1

 LPG ........................................................... 1.9 1.3 Q 2.3 24.1

 Kerosene ................................................... 1.8 1.9 2.3 Q 15.9

 Other ......................................................... 0.4 Q Q Q 44.3

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. 

• Percentages are calculated on unrounded numbers. • See "Glossary" for definition of terms used in this report.

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 HC3-11b. Space Heating by South Census Region, 

 Percent of U.S. Households, 2001 

Space Heating

Characteristics

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 1.3

Total .............................................................. 100.0 100.0 100.0 100.0 100.0 0.0

Heat Home .................................................... 99.1 99.6 99.3 100.0 100.0 NE

Do Not Heat Home ....................................... 0.9 Q Q Q Q 20.1

 No Heating Equipment ................................ 0.5 Q Q Q Q 39.8

 Have Equipment But

 Do Not Use It ............................................... 0.4 Q Q Q Q 39.0

Main Heating Fuel and Equipment

(Have and Use Equipment) ........................... 99.1 99.6 99.3 100.0 100.0 NE

 Natural Gas ................................................. 55.2 40.2 33.4 35.4 54.8 7.8

 Central Warm-Air Furnace ........................ 41.9 32.7 29.0 28.0 41.8 9.2

 For One Housing Unit .............................. 40.2 31.9 28.2 27.3 41.0 8.9

 For Two or More Units ............................. 1.7 Q Q Q Q 31.6

 Steam or Hot-Water System ..................... 7.4 1.5 2.1 Q Q 23.6

 For One Housing Unit .............................. 4.8 1.1 Q Q Q 34.5

 For Two or More Units ............................. 2.6 Q Q Q Q 28.8

 Floor, Wall, or 

 Pipeless Furnace ....................................... 2.9 1.9 Q Q 4.1 26.7

 Room Heater ............................................. 2.6 4.0 Q 5.1 8.0 19.2

 Other ......................................................... 0.5 Q Q Q Q 52.5

 Electricity ..................................................... 28.9 49.6 54.2 49.6 41.9 7.6

 Built-In Electric Units ................................. 5.7 2.8 3.1 4.9 Q 25.4

 Central Warm-Air Furnace ........................ 11.8 24.1 21.4 20.1 31.1 10.5

 For One Housing Unit .............................. 11.1 23.0 21.1 20.1 28.2 11.8

 For Two or More Units ............................. 0.7 1.0 Q Q 2.9 45.2

 Heat Pump ................................................ 9.7 20.3 27.6 22.1 6.7 14.9

 Other ......................................................... 1.7 2.4 2.1 Q 2.9 27.9

 Fuel Oil ........................................................ 7.5 2.1 3.8 Q Q 28.6

 Steam or Hot-Water System ..................... 4.1 Q Q Q Q 18.3

 For One Housing Unit .............................. 3.1 Q Q Q Q 21.2

 For Two or More Units ............................. 1.1 Q Q Q Q 29.2

 Central Warm-Air Furnace ........................ 3.1 1.6 2.8 Q Q 36.3

 Other ......................................................... 0.3 Q Q Q Q 52.5

 Wood ........................................................... 1.9 1.5 2.0 Q Q 30.2

 Heating Stove ............................................ 1.4 1.2 1.4 Q Q 35.5

 Other ......................................................... 0.5 Q Q Q Q 39.6

 LPG ............................................................. 4.6 5.2 4.6 11.5 2.5 22.3

 Central Warm-Air Furnace ........................ 3.1 2.7 3.0 Q Q 31.3

 Room Heater ............................................. 1.0 2.2 Q 6.4 Q 17.9

 Other ......................................................... 0.5 Q Q Q Q 42.8

 Kerosene ..................................................... 0.8 1.0 1.4 Q Q 29.4

 Other ........................................................... 0.2 Q Q Q Q 87.1

Amount of Heat Provided

by Main Heating Equipment

 All or Almost All ........................................... 90.2 91.4 92.2 89.9 91.0 1.0

 About Three-Fourths ................................... 4.0 3.5 3.6 4.0 3.1 19.1

 Closer to One-Half ....................................... 3.5 3.2 2.6 5.1 3.3 16.6

 Don’t Know .................................................. 1.4 1.4 Q Q 2.6 23.2

See footnotes at end of table.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC3-11b. Space Heating by South Census Region, 

 Percent of U.S. Households, 2001 (Continued)

Space Heating

Characteristics

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 1.3

Age of Main

Heating Equipment

 Less than 2 Years ....................................... 8.1 10.3 9.1 12.6 10.9 9.1

 2 to 4 Years ................................................. 12.5 15.2 17.1 14.5 12.4 9.6

 5 to 9 Years ................................................. 20.0 25.3 27.3 25.9 21.6 5.0

 10 to 19 Years ............................................. 22.4 23.4 24.9 26.8 18.9 7.0

 20 Years or More ......................................... 24.8 15.9 13.2 14.1 21.6 7.6

 Don’t Know .................................................. 11.2 9.5 7.6 6.1 14.7 16.8

Secondary Heating Fuel and Equipment

(more than one may apply)

 No ................................................................ 67.4 65.7 68.5 60.0 64.2 3.3

 Yes .............................................................. 31.7 33.9 30.8 40.0 35.8 6.2

 Natural Gas ............................................... 5.2 6.7 4.9 6.9 9.7 17.4

 Fireplace .................................................. 3.0 2.8 2.5 2.2 3.7 16.8

 Room Heater ........................................... 0.9 1.8 1.4 2.4 2.1 31.2

 Central Warm-Air Furnace ...................... 0.7 1.0 Q Q Q 33.4

 Other Equipment ..................................... 0.6 1.3 Q Q 3.6 35.2

 Electricity ................................................... 14.7 13.6 11.4 14.0 17.3 8.1

 Portable Heater ....................................... 11.0 10.5 8.5 10.4 14.0 8.5

 Built-in Electric Units ............................... 2.3 1.4 Q Q Q 23.2

 Heat Pump .............................................. 1.1 1.4 Q Q Q 31.6

 Other Equipment ..................................... 0.6 Q Q Q Q 40.2

 Fuel Oil ...................................................... 0.4 Q Q Q Q 47.3

 Wood ......................................................... 11.6 11.7 11.6 11.3 12.2 11.0

 Fireplace .................................................. 8.8 10.0 10.4 7.5 10.7 10.5

 Heating Stove .......................................... 2.8 1.7 1.5 3.4 Q 26.7

 Other Equipment ..................................... 0.3 Q Q Q Q 50.8

 LPG ........................................................... 1.9 3.1 2.8 7.2 Q 25.9

 Kerosene ................................................... 1.8 2.4 3.3 3.4 Q 22.0

 Other ......................................................... 0.4 Q Q Q Q 45.0

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. 

• Percentages are calculated on unrounded numbers. • See "Glossary" for definition of terms used in this report.

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 HC3-12b. Space Heating by West Census Region, 

 Percent of U.S. Households, 2001 

Space Heating

Characteristics

RSE Column Factor:

Total

U.S.

West Census Region

RSE

Row

Factors

Total

Census Division

Mountain Pacific

0.6 1.0 1.6 1.2

Total .............................................................. 100.0 100.0 100.0 100.0 0.0

Heat Home .................................................... 99.1 97.1 99.7 96.0 NE

Do Not Heat Home ....................................... 0.9 2.9 Q 4.0 10.6

 No Heating Equipment ................................ 0.5 1.9 Q 2.6 18.1

 Have Equipment But

 Do Not Use It ............................................... 0.4 1.0 Q 1.4 27.5

Main Heating Fuel and Equipment

(Have and Use Equipment) ........................... 99.1 97.1 99.7 96.0 NE

 Natural Gas ................................................. 55.2 59.9 62.3 59.0 2.6

 Central Warm-Air Furnace ........................ 41.9 42.9 51.4 39.5 5.6

 For One Housing Unit .............................. 40.2 41.4 49.9 37.9 5.6

 For Two or More Units ............................. 1.7 1.5 Q 1.5 30.9

 Steam or Hot-Water System ..................... 7.4 3.0 5.2 2.2 22.7

 For One Housing Unit .............................. 4.8 1.6 3.0 1.1 28.4

 For Two or More Units ............................. 2.6 Q Q Q 25.6

 Floor, Wall, or 

 Pipeless Furnace ....................................... 2.9 9.1 2.6 11.7 16.0

 Room Heater ............................................. 2.6 3.8 Q 4.5 19.7

 Other ......................................................... 0.5 1.1 Q Q 31.5

 Electricity ..................................................... 28.9 29.2 29.2 29.2 6.2

 Built-In Electric Units ................................. 5.7 10.9 5.3 13.2 15.2

 Central Warm-Air Furnace ........................ 11.8 9.0 11.8 7.9 14.9

 For One Housing Unit .............................. 11.1 8.5 10.7 7.6 14.9

 For Two or More Units ............................. 0.7 Q Q Q 51.7

 Heat Pump ................................................ 9.7 7.0 10.5 5.6 12.8

 Other ......................................................... 1.7 2.2 Q 2.5 22.9

 Fuel Oil ........................................................ 7.5 0.7 Q Q 26.5

 Steam or Hot-Water System ..................... 4.1 Q Q Q 16.2

 For One Housing Unit .............................. 3.1 Q Q Q 18.8

 For Two or More Units ............................. 1.1 Q Q Q 25.9

 Central Warm-Air Furnace ........................ 3.1 Q Q Q 26.0

 Other ......................................................... 0.3 Q Q Q 46.5

 Wood ........................................................... 1.9 3.3 2.3 3.6 17.0

 Heating Stove ............................................ 1.4 2.4 2.1 2.5 19.8

 Other ......................................................... 0.5 0.9 Q 1.2 33.7

 LPG ............................................................. 4.6 3.1 5.6 2.2 25.3

 Central Warm-Air Furnace ........................ 3.1 2.0 3.3 1.4 30.0

 Room Heater ............................................. 1.0 Q Q Q 29.4

 Other ......................................................... 0.5 0.8 Q Q 37.7

 Kerosene ..................................................... 0.8 Q Q Q 31.5

 Other ........................................................... 0.2 Q Q Q 77.3

Amount of Heat Provided

by Main Heating Equipment

 All or Almost All ........................................... 90.2 84.1 87.5 82.8 1.3

 About Three-Fourths ................................... 4.0 5.8 6.0 5.7 13.0

 Closer to One-Half ....................................... 3.5 5.2 4.2 5.7 13.4

 Don’t Know .................................................. 1.4 1.9 Q 1.9 28.0

See footnotes at end of table.

Energy Information Administration

2001 Residential Energy Consumption Survey: Housing Characteristics Tables
Table HC3-12b. Space Heating by West Census Region, 

 Percent of U.S. Households, 2001 (Continued)

Space Heating

Characteristics

RSE Column Factor:

Total

U.S.

West Census Region

RSE

Row

Factors

Total

Census Division

Mountain Pacific

0.6 1.0 1.6 1.2

Age of Main

Heating Equipment

 Less than 2 Years ....................................... 8.1 6.1 7.7 5.5 11.4

 2 to 4 Years ................................................. 12.5 12.2 16.6 10.4 11.6

 5 to 9 Years ................................................. 20.0 13.9 16.9 12.7 9.4

 10 to 19 Years ............................................. 22.4 19.4 18.4 19.9 9.9

 20 Years or More ......................................... 24.8 35.0 32.3 36.1 6.3

 Don’t Know .................................................. 11.2 10.4 7.6 11.5 13.4

Secondary Heating Fuel and Equipment

(more than one may apply)

 No ................................................................ 67.4 61.9 64.4 60.8 3.3

 Yes .............................................................. 31.7 35.2 35.3 35.2 6.1

 Natural Gas ............................................... 5.2 5.8 6.0 5.8 17.5

 Fireplace .................................................. 3.0 4.2 Q 4.6 19.0

 Room Heater ........................................... 0.9 Q Q Q 33.3

 Central Warm-Air Furnace ...................... 0.7 0.8 Q Q 30.8

 Other Equipment ..................................... 0.6 Q Q Q 43.3

 Electricity ................................................... 14.7 16.8 17.5 16.5 7.4

 Portable Heater ....................................... 11.0 12.4 12.3 12.4 8.7

 Built-in Electric Units ............................... 2.3 2.6 3.3 2.3 20.2

 Heat Pump .............................................. 1.1 1.4 Q Q 28.1

 Other Equipment ..................................... 0.6 0.8 Q Q 33.0

 Fuel Oil ...................................................... 0.4 Q Q Q 41.9

 Wood ......................................................... 11.6 16.3 12.9 17.6 10.1

 Fireplace .................................................. 8.8 13.1 8.3 15.0 10.5

 Heating Stove .......................................... 2.8 3.1 4.6 2.5 14.5

 Other Equipment ..................................... 0.3 Q Q Q 45.1

 LPG ........................................................... 1.9 1.1 Q Q 36.0

 Kerosene ................................................... 1.8 Q Q Q 22.6

 Other ......................................................... 0.4 Q Q Q 39.9

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. 

• Percentages are calculated on unrounded numbers. • See "Glossary" for definition of terms used in this report.

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