Table HC6-5a. Usage Indicators by Type of Owner-Occupied Housing Unit, 

 Million U.S. Households, 2001 

______________________________________________________________________________________________________________

 | | | 

 | | Type of Owner-Occupied Housing Unit | 

 | |_______________________________________________________| 

 | | | | | 

 | | | Apartments in Buildings | | 

 | | | With | | 

 | Total | |___________________________| | 

 | Owner- | | | | | 

 | Occupied| | Two to Four | Five or More| | 

 Usage Indicators | Units |Single-Family| Units | Units | Mobile Home | 

 |_________|_____________|_____________|_____________|_____________| RSE 

 | | | | | | Row 

 RSE Column Factor: | 0.3 | 0.4 | 2.1 | 2.9 | 1.4 |Factors

____________________________________|_________|_____________|_____________|_____________|_____________|_______

 | 

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 | 

 All of the Time................... 2.3 1.9 Q Q 0.2 | 27.4 

 Most of the Time.................. 2.9 2.3 Q Q 0.3 | 24.9 

 Some of the ...................... 23.4 20.2 0.7 0.4 2.1 | 11.4 

 Never............................. 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. 

 

 

 

 

 

 
 

Table HC6-5a. Usage Indicators by Type of Owner-Occupied Housing Unit, 

 Million U.S. Households, 2001 (Continued) 

______________________________________________________________________________________________________________

 | | | 

 | | Type of Owner-Occupied Housing Unit | 

 | |_______________________________________________________| 

 | | | | | 

 | | | Apartments in Buildings | | 

 | | | With | | 

 | Total | |___________________________| | 

 | Owner- | | | | | 

 | Occupied| | Two to Four | Five or More| | 

 Usage Indicators | Units |Single-Family| Units | Units | Mobile Home | 

 |_________|_____________|_____________|_____________|_____________| RSE 

 | | | | | | Row 

 RSE Column Factor: | 0.3 | 0.4 | 2.1 | 2.9 | 1.4 |Factors

____________________________________|_________|_____________|_____________|_____________|_____________|_______

 | 

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. 

 

 

 

 

 

 

 

 

 
Table HC6-5a. Usage Indicators by Type of Owner-Occupied Housing Unit, 

 Million U.S. Households, 2001 (Continued) 

______________________________________________________________________________________________________________

 | | | 

 | | Type of Owner-Occupied Housing Unit | 

 | |_______________________________________________________| 

 | | | | | 

 | | | Apartments in Buildings | | 

 | | | With | | 

 | Total | |___________________________| | 

 | Owner- | | | | | 

 | Occupied| | Two to Four | Five or More| | 

 Usage Indicators | Units |Single-Family| Units | Units | Mobile Home | 

 |_________|_____________|_____________|_____________|_____________| RSE 

 | | | | | | Row 

 RSE Column Factor: | 0.3 | 0.4 | 2.1 | 2.9 | 1.4 |Factors

____________________________________|_________|_____________|_____________|_____________|_____________|_______

 | 

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. 

 

 

 
 

Table HC6-5a. Usage Indicators by Type of Owner-Occupied Housing Unit, 

 Million U.S. Households, 2001 (Continued) 

______________________________________________________________________________________________________________

 | | | 

 | | Type of Owner-Occupied Housing Unit | 

 | |_______________________________________________________| 

 | | | | | 

 | | | Apartments in Buildings | | 

 | | | With | | 

 | Total | |___________________________| | 

 | Owner- | | | | | 

 | Occupied| | Two to Four | Five or More| | 

 Usage Indicators | Units |Single-Family| Units | Units | Mobile Home | 

 |_________|_____________|_____________|_____________|_____________| RSE 

 | | | | | | Row 

 RSE Column Factor: | 0.3 | 0.4 | 2.1 | 2.9 | 1.4 |Factors

____________________________________|_________|_____________|_____________|_____________|_____________|_______

 | 

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. 
Table HC6-5a. Usage Indicators by Type of Owner-Occupied Housing Unit, 

 Million U.S. Households, 2001 (Continued) 

______________________________________________________________________________________________________________

 | | | 

 | | Type of Owner-Occupied Housing Unit | 

 | |_______________________________________________________| 

 | | | | | 

 | | | Apartments in Buildings | | 

 | | | With | | 

 | Total | |___________________________| | 

 | Owner- | | | | | 

 | Occupied| | Two to Four | Five or More| | 

 Usage Indicators | Units |Single-Family| Units | Units | Mobile Home | 

 |_________|_____________|_____________|_____________|_____________| RSE 

 | | | | | | Row 

 RSE Column Factor: | 0.3 | 0.4 | 2.1 | 2.9 | 1.4 |Factors

____________________________________|_________|_____________|_____________|_____________|_____________|_______

 | 

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.