Million U.S. Housing Units

Total............................................................................ 111.1 72.1 7.6 7.8 16.7 6.9

Cooking Appliances

Frequency of Hot Meals Cooked

3 or More Times A Day......................................... 8.2 4.8 0.5 0.7 1.4 0.8

2 Times A Day...................................................... 24.6 15.6 1.8 2.0 3.6 1.6

Once a Day........................................................... 42.3 28.8 2.7 2.8 5.4 2.6

A Few Times Each Week..................................... 27.2 17.8 2.0 1.7 4.1 1.5

About Once a Week.............................................. 3.9 2.4 Q Q 0.8 0.4

Less Than Once a Week...................................... 4.1 2.4 0.3 Q 1.1 Q

No Hot Meals Cooked........................................... 0.9 0.3 Q Q 0.3 Q

Coventional Oven

Use an Oven......................................................... 109.6 71.3 7.4 7.7 16.4 6.8

More Than Once a Day..................................... 8.9 5.7 0.5 0.6 1.3 0.7

Once a Day....................................................... 19.2 13.3 1.3 1.4 2.1 1.0

Between Once a Day and Once a Week........... 32.0 22.7 2.1 1.8 4.0 1.5

Once a Week.................................................... 19.1 12.2 1.2 1.3 3.0 1.4

Less than Once a Week.................................... 30.3 17.3 2.3 2.6 5.9 2.2

Do Not Use an Oven............................................. 1.5 0.7 Q Q 0.4 Q

Microwave Oven

Use a Microwave Oven......................................... 97.7 65.3 6.6 6.3 13.3 6.2

Most or all Food Cooked................................... 8.3 5.1 0.8 0.6 1.2 0.7

About Half of All Food Cooked.......................... 17.3 11.4 1.1 1.0 2.7 1.2

Some or Very Little Food Cooked..................... 21.9 15.3 1.5 1.2 2.8 1.1

For Defrosting, Reheating, or Snacks................ 50.2 33.6 3.3 3.6 6.5 3.2

Do Not Use a Microwave Oven............................. 13.4 6.8 1.0 1.5 3.5 0.7

Electric Coffee Maker

Use an Electric Coffee Maker............................... 67.2 48.4 4.2 3.4 7.1 4.0

3 or More Times a Day...................................... 2.5 1.7 Q Q Q 0.3

2 Times a Day................................................... 5.4 3.7 0.4 0.2 0.7 0.3

Once a Day....................................................... 36.9 27.5 1.9 1.7 3.6 2.3

A Few Times Each Week.................................. 9.7 7.0 0.7 0.5 1.2 0.3

About Once a Week.......................................... 5.0 3.3 0.4 0.3 0.7 Q

Less Than Once a Week................................... 7.6 5.2 0.6 0.6 0.7 0.5

Do Not Use an Electric Coffee Maker................... 43.9 23.7 3.4 4.3 9.6 2.9

Time Coffee Maker is Left On

Turned off Right Away....................................... 21.6 14.3 1.5 1.6 3.2 1.1

Less than 15 Minutes........................................ 11.2 7.6 0.9 0.5 1.4 0.7

15 Minutes to 1 Hour......................................... 21.1 16.3 1.2 1.0 1.4 1.2

More Than 1 Hour............................................. 13.2 10.2 0.6 0.3 1.1 1.1

Type of Housing Unit

Home Appliances Usage Indicators Detached Attached 2 to 4 Units 5 or More 

Units

Mobile 

Homes

Table HC2.10 Home Appliances Usage Indicators by Type of Housing Unit, 2005

Housing 

Units 

(millions)

Single-Family Units Apartments in Buildings 

With--

Energy Information Administration

2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables
 Million U.S. Housing Units

Type of Housing Unit

Home Appliances Usage Indicators Detached Attached 2 to 4 Units 5 or More 

Units

Mobile 

Homes

Table HC2.10 Home Appliances Usage Indicators by Type of Housing Unit, 2005

Housing 

Units 

(millions)

Single-Family Units Apartments in Buildings 

With--

Electric Toaster Oven

Use an Electric Toaster Oven............................... 37.3 25.0 2.3 2.6 5.5 2.0

3 or More Times a Day...................................... 0.9 0.6 QQQQ

2 Times a Day................................................... 3.2 2.5 Q Q 0.4 Q

Once a Day....................................................... 9.0 6.3 0.4 0.5 1.2 0.6

A Few Times Each Week.................................. 11.6 7.6 0.9 0.9 1.7 0.5

About Once a Week.......................................... 4.4 2.7 0.3 0.3 0.8 0.3

Less Than Once a Week................................... 8.1 5.3 0.5 0.7 1.1 0.4

Do Not Use an Electric Toaster Oven................... 73.8 47.1 5.3 5.2 11.3 5.0

Electric Toaster Oven Function

Used Only as a Toaster..................................... 22.0 15.0 1.2 1.4 3.3 1.1

Used Only as an Oven...................................... 5.7 3.8 0.3 0.4 0.9 0.3

Used Both as a Toaster and an Oven............... 9.6 6.2 0.8 0.7 1.4 0.5

Refrigerators

Most-Used RefrIgerator

Age of Most-Used Refrigerator

Less than 2 Years............................................. 19.0 12.5 1.3 1.7 2.6 0.9

2 to 4 Years....................................................... 22.7 15.3 1.4 1.5 3.3 1.2

5 to 9 Years....................................................... 30.9 20.6 1.9 1.9 4.4 2.1

10 to 19 Years................................................... 25.7 18.1 1.8 1.4 2.7 1.8

20 Years or More.............................................. 6.1 3.9 0.6 Q 1.1 0.3

Don't Know........................................................ 6.7 1.8 0.6 1.0 2.7 0.6

Energy Star (Most-Used) Refrigerator1

Yes.................................................................... 23.9 17.6 1.6 1.4 2.3 1.0

No..................................................................... 12.9 7.3 0.7 1.4 2.7 0.9

Don't Know........................................................ 4.9 2.9 0.4 0.4 0.9 0.3

Unit is More Than 4 Years Old.......................... 69.4 44.3 4.9 4.5 10.9 4.8

Use a Second Refrigerator..................................... 24.6 21.6 1.5 0.6 0.4 0.5

Age of Second Refrigerator

Less than 2 Years............................................. 2.3 1.8 QQQQ

2 to 4 Years....................................................... 3.8 3.0 0.4 Q Q Q

5 to 9 Years....................................................... 5.3 4.6 0.3 Q Q Q

10 to 19 Years................................................... 8.6 7.9 0.5 Q Q Q

20 Years or More.............................................. 4.1 3.9 Q N Q Q

Don't Know........................................................ 0.5 0.4 QQQQ

Do Not Use a Second Refrigerator........................ 86.3 50.4 6.1 7.2 16.3 6.4

Number of Months Turned on Each Year

1 to 3 Months.................................................... 1.9 1.4 QQQQ

4 to 6 Months.................................................... 0.9 0.7 Q Q N Q

7 to 11 Months.................................................. 0.5 0.4 N Q Q N

On all the Time.................................................. 21.2 18.9 1.3 0.4 0.2 0.4

Energy Information Administration

2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables
 Million U.S. Housing Units

Type of Housing Unit

Home Appliances Usage Indicators Detached Attached 2 to 4 Units 5 or More 

Units

Mobile 

Homes

Table HC2.10 Home Appliances Usage Indicators by Type of Housing Unit, 2005

Housing 

Units 

(millions)

Single-Family Units Apartments in Buildings 

With--

Dishwasher

Use a Dishwasher.................................................... 64.7 48.0 4.2 2.4 7.4 2.7

At Least Once Each Day....................................... 11.3 9.4 0.5 Q 0.8 0.4

4 to 6 Times a Week............................................. 11.7 9.6 0.7 0.3 0.7 0.4

2 to 3 Times a Week............................................. 21.8 16.4 1.5 0.9 2.2 0.8

Once each Week.................................................. 9.0 6.1 0.6 0.4 1.5 0.4

Less than Once Each Week................................. 10.9 6.4 0.9 0.7 2.3 0.6

Do Not Use a Dishwasher........................................ 46.4 24.1 3.4 5.3 9.3 4.3

Energy Star Dishwasher1

Yes....................................................................... 16.4 13.3 0.9 0.4 1.2 0.5

No......................................................................... 6.6 4.7 0.5 0.3 0.9 Q

Don't Know........................................................... 3.1 2.2 0.3 Q 0.2 0.3

Unit is More Than 4 Years Old.............................. 85.0 51.9 5.8 7.0 14.4 5.9

Clothes Washers and Dryers

Clothes Washer

Use a Clothes Washer in the Home...................... 91.8 69.3 6.7 4.2 5.6 6.0

1 Load Each Week............................................ 7.3 5.1 0.6 0.3 0.7 0.5

2 to 5 Loads Each Week................................... 39.0 28.1 3.1 2.3 3.0 2.4

6 to 9 Loads Each Week................................... 33.8 26.3 2.2 1.3 1.8 2.2

10 to 15 Loads Each Week............................... 9.3 7.7 0.7 Q Q 0.6

More than 15 Loads Each Week....................... 2.4 2.0 Q Q N 0.3

Do Not Use a Clothes Washer in the Home.......... 19.3 2.8 0.9 3.5 11.1 1.0

Usual Water Temperature Setting

Wash Cycle

Hot.................................................................... 6.7 4.5 0.8 0.3 0.8 0.4

Warm................................................................ 50.5 39.0 3.7 2.2 2.7 2.8

Cold.................................................................. 34.6 25.7 2.2 1.7 2.2 2.8

Rinse Cycle

Hot.................................................................... 1.6 1.0 QQQQ

Warm................................................................ 18.2 13.4 1.4 1.1 1.3 1.0

Cold.................................................................. 72.0 54.9 5.1 3.1 4.1 4.9

Energy Star Clothes Washer1

Yes....................................................................... 21.7 16.8 1.8 1.1 1.0 1.1

No......................................................................... 10.4 6.8 1.0 0.6 1.2 0.9

Don't Know........................................................... 4.5 3.1 0.4 Q 0.4 0.4

Unit is More Than 4 Years Old.............................. 55.1 42.6 3.5 2.3 3.1 3.6

Loads of Clothes Dried

Use a Clothes Dryer in the Home.......................... 87.5 67.3 6.2 3.8 4.8 5.5

Every Time Clothes are Washed....................... 72.4 55.4 5.0 3.3 4.1 4.6

Some, but Not All, Loads.................................. 12.4 9.9 1.0 0.4 0.4 0.7

Used Infrequently.............................................. 2.7 2.0 Q Q Q 0.2

Do Not Use a Clothes Dryer in the Home.............. 23.6 4.8 1.4 3.9 12.0 1.4

Energy Information Administration

2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables
 Million U.S. Housing Units

Type of Housing Unit

Home Appliances Usage Indicators Detached Attached 2 to 4 Units 5 or More 

Units

Mobile 

Homes

Table HC2.10 Home Appliances Usage Indicators by Type of Housing Unit, 2005

Housing 

Units 

(millions)

Single-Family Units Apartments in Buildings 

With--

Other Appliances

Ceiling Fans

1........................................................................... 21.7 11.5 2.0 1.9 4.3 2.0

2........................................................................... 17.4 12.3 1.0 0.9 1.8 1.4

3........................................................................... 12.3 9.7 0.5 0.6 0.7 0.8

4 or More.............................................................. 25.8 23.8 0.7 0.5 Q 0.6

Use of Most-Used Ceiling Fan

Used All Summer.............................................. 18.7 13.5 1.0 1.0 2.1 1.1

Used Quite a Bit................................................ 16.2 12.1 1.1 0.9 1.4 0.7

Used Only a Few Days or Nights....................... 39.3 30.0 1.8 1.5 3.2 2.8

Not Used at All.................................................. 2.9 1.7 0.3 0.3 0.5 Q

Battery-Operated Appliances/Tools

Use Battery-Operated Appliances/Tools............... 54.9 42.7 3.0 2.0 3.9 3.3

Plugged in All the Time..................................... 10.0 7.9 0.4 0.4 0.8 0.5

Recharged as Needed...................................... 41.6 32.3 2.3 1.5 3.0 2.6

Both Ways Are Used......................................... 3.3 2.6 QQQQ

Do Not Use Battery-Operated Appliances/Tools... 56.2 29.3 4.6 5.7 12.8 3.7

Other Appliances Used

Auto Block/Engine/Battery Heater............................ 0.8 0.7 Q Q N Q

Hot Tub or Spa......................................................... 6.7 6.4 Q N N Q

Swimming Pool with Filters....................................... 8.3 8.2 Q N N N

Water Bed................................................................ 2.2 1.7 QQQQ

 1. The question of whether the appliance was an Energy Star appliance was asked only of those housing units having a appliance 

that was less than 4 years old.

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

sampled.

 N = No cases in reporting sample.

 Notes: ● Because of rounding, data may not sum to totals. ● See Glossary for definition of terms used in these tables.

 Source: Energy Information Administration, Office of Energy Markets and End Use, Forms EIA-457 A, B, C of the 2005 

Residential Energy Consumption Survey.

Energy Information Administration

2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables
 Million U.S. Housing Units

Total.................................................................................... 111.1 78.1 64.1 4.2 1.8 2.3 5.7

Cooking Appliances

Frequency of Hot Meals Cooked

3 or More Times A Day................................................. 8.2 4.7 3.8 Q Q Q 0.6

2 Times A Day.............................................................. 24.6 16.0 13.3 0.8 0.4 Q 1.3

Once a Day.................................................................. 42.3 32.1 26.5 1.6 0.7 1.1 2.2

A Few Times Each Week............................................. 27.2 19.3 15.8 1.3 0.4 0.6 1.3

About Once a Week..................................................... 3.9 2.8 2.2 Q N Q 0.3

Less Than Once a Week.............................................. 4.1 2.7 2.3 QQQQ

No Hot Meals Cooked.................................................. 0.9 0.4 QQQQN

Coventional Oven

Use an Oven................................................................ 109.6 77.3 63.4 4.1 1.8 2.3 5.6

More Than Once a Day............................................. 8.9 5.4 4.4 0.2 Q Q 0.4

Once a Day............................................................... 19.2 14.1 12.0 0.5 0.4 0.3 0.8

Between Once a Day and Once a Week................... 32.0 24.1 20.4 1.4 0.5 0.5 1.3

Once a Week............................................................ 19.1 13.5 11.0 0.6 0.3 0.4 1.3

Less than Once a Week........................................... 30.3 20.2 15.6 1.4 0.5 0.9 1.8

Do Not Use an Oven.................................................... 1.5 0.8 0.6 Q N Q Q

Microwave Oven

Use a Microwave Oven................................................. 97.7 70.7 58.2 3.8 1.5 2.0 5.2

Most or all Food Cooked........................................... 8.3 5.8 4.4 0.5 Q Q 0.5

About Half of All Food Cooked.................................. 17.3 12.6 10.3 0.7 Q Q 1.1

Some or Very Little Food Cooked............................. 21.9 16.2 13.9 0.9 Q 0.5 0.9

For Defrosting, Reheating, or Snacks....................... 50.2 36.2 29.6 1.7 1.2 1.0 2.7

Do Not Use a Microwave Oven..................................... 13.4 7.4 5.9 0.3 0.3 Q 0.6

Electric Coffee Maker

Use an Electric Coffee Maker....................................... 67.2 51.4 43.6 2.4 0.9 1.0 3.5

3 or More Times a Day............................................. 2.5 1.9 1.4 Q N Q 0.3

2 Times a Day.......................................................... 5.4 4.1 3.5 Q Q Q 0.3

Once a Day............................................................... 36.9 29.0 25.1 1.0 0.4 0.5 2.0

A Few Times Each Week......................................... 9.7 7.2 6.2 0.4 Q Q 0.3

About Once a Week.................................................. 5.0 3.3 2.8 QQQQ

Less Than Once a Week.......................................... 7.6 5.9 4.7 0.4 Q Q 0.5

Do Not Use an Electric Coffee Maker........................... 43.9 26.7 20.4 1.8 0.9 1.3 2.3

Time Coffee Maker is Left On

Turned off Right Away.............................................. 21.6 15.6 13.0 0.8 0.4 0.5 0.9

Less than 15 Minutes................................................ 11.2 8.4 6.8 0.5 0.2 Q 0.5

15 Minutes to 1 Hour................................................. 21.1 16.8 14.7 0.6 0.2 Q 1.1

More Than 1 Hour..................................................... 13.2 10.7 9.2 0.4 Q Q 1.0

 OwnerOccupied 

Housing 

Units 

(millions)

Type of Owner-Occupied Housing Unit

U.S.

Housing 

Units 

(millions

Single-Family Units Apartments in 

Buildings With--

Table HC3.10 Home Appliances Usage Indicators by Owner-Occupied Housing Unit, 2005

Home Appliances Usage Indicators Detached Attached 2 to 4 

Units

5 or More 

Units

Mobile 

Homes

Energy Information Administration

2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables
 Million U.S. Housing Units

 OwnerOccupied 

Housing 

Units 

(millions)

Type of Owner-Occupied Housing Unit

U.S.

Housing 

Units 

(millions

Single-Family Units Apartments in 

Buildings With--

Table HC3.10 Home Appliances Usage Indicators by Owner-Occupied Housing Unit, 2005

Home Appliances Usage Indicators Detached Attached 2 to 4 

Units

5 or More 

Units

Mobile 

Homes

Electric Toaster Oven

Use an Electric Toaster Oven....................................... 37.3 27.9 22.9 1.4 0.9 1.1 1.7

3 or More Times a Day............................................. 0.9 0.6 0.5 Q Q N Q

2 Times a Day.......................................................... 3.2 2.6 2.2 QQQQ

Once a Day............................................................... 9.0 6.9 5.8 Q Q Q 0.5

A Few Times Each Week......................................... 11.6 8.7 6.9 0.6 0.4 0.3 0.5

About Once a Week.................................................. 4.4 3.3 2.5 Q Q Q 0.3

Less Than Once a Week.......................................... 8.1 5.8 4.9 0.2 Q Q 0.4

Do Not Use an Electric Toaster Oven........................... 73.8 50.2 41.2 2.8 1.0 1.3 4.0

Electric Toaster Oven Function

Used Only as a Toaster............................................ 22.0 16.4 13.5 0.7 0.5 0.8 0.9

Used Only as an Oven.............................................. 5.7 4.3 3.6 Q Q Q 0.3

Used Both as a Toaster and an Oven....................... 9.6 7.2 5.8 0.5 Q Q 0.5

Refrigerators

Most-Used RefrIgerator

Age of Most-Used Refrigerator

Less than 2 Years..................................................... 19.0 13.1 11.0 0.7 0.3 0.4 0.7

2 to 4 Years.............................................................. 22.7 16.1 13.4 0.8 0.4 0.4 1.1

5 to 9 Years.............................................................. 30.9 22.7 18.8 1.2 0.6 0.4 1.8

10 to 19 Years.......................................................... 25.7 19.7 16.3 0.9 0.5 0.5 1.5

20 Years or More...................................................... 6.1 4.6 3.5 0.4 Q Q Q

Don't Know............................................................... 6.7 1.9 1.1 Q Q Q 0.4

Energy Star (Most-Used) Refrigerator1

Yes........................................................................... 23.9 18.5 15.7 1.1 0.4 0.5 0.9

No............................................................................. 12.9 7.6 6.0 0.3 Q Q 0.7

Don't Know............................................................... 4.9 3.2 2.7 QQQQ

Unit is More Than 4 Years Old.................................. 69.4 48.9 39.6 2.6 1.2 1.5 4.0

Use a Second Refrigerator............................................ 24.6 22.5 20.5 1.1 0.4 Q 0.5

Age of Second Refrigerator

Less than 2 Years..................................................... 2.3 1.8 1.6 QQQQ

2 to 4 Years.............................................................. 3.8 3.2 2.8 Q Q N Q

5 to 9 Years.............................................................. 5.3 5.0 4.4 Q Q N Q

10 to 19 Years.......................................................... 8.6 8.1 7.5 0.4 Q N Q

20 Years or More...................................................... 4.1 3.9 3.8 Q N N Q

Don't Know............................................................... 0.5 0.4 0.4 Q N N Q

Do Not Use a Second Refrigerator............................... 86.3 55.5 43.4 3.1 1.5 2.3 5.3

Number of Months Turned on Each Year

1 to 3 Months............................................................ 1.9 1.4 1.2 Q Q N Q

4 to 6 Months............................................................ 0.9 0.8 0.7 Q Q N Q

7 to 11 Months.......................................................... 0.5 0.4 0.4 NNNN

On all the Time......................................................... 21.2 19.7 18.1 1.0 Q Q 0.4

Energy Information Administration

2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables
 Million U.S. Housing Units

 OwnerOccupied 

Housing 

Units 

(millions)

Type of Owner-Occupied Housing Unit

U.S.

Housing 

Units 

(millions

Single-Family Units Apartments in 

Buildings With--

Table HC3.10 Home Appliances Usage Indicators by Owner-Occupied Housing Unit, 2005

Home Appliances Usage Indicators Detached Attached 2 to 4 

Units

5 or More 

Units

Mobile 

Homes

Dishwasher

Use a Dishwasher............................................................ 64.7 52.5 44.8 2.8 0.9 1.7 2.4

At Least Once Each Day.............................................. 11.3 9.4 8.6 0.3 Q Q 0.4

4 to 6 Times a Week.................................................... 11.7 10.2 9.0 0.5 Q Q 0.3

2 to 3 Times a Week.................................................... 21.8 18.3 15.4 1.1 0.5 0.5 0.8

Once each Week.......................................................... 9.0 7.0 5.8 0.4 Q 0.4 0.4

Less than Once Each Week......................................... 10.9 7.6 6.0 0.5 Q 0.5 0.6

Do Not Use a Dishwasher................................................ 46.4 25.6 19.3 1.4 1.0 0.6 3.4

Energy Star Dishwasher1

Yes............................................................................... 16.4 14.2 12.6 0.7 Q 0.3 0.5

No................................................................................ 6.6 5.0 4.2 0.3 Q Q Q

Don't Know................................................................... 3.1 2.6 2.1 Q N Q 0.3

Unit is More Than 4 Years Old..................................... 85.0 56.3 45.2 3.0 1.6 1.7 4.8

Clothes Washers and Dryers

Clothes Washer

Use a Clothes Washer in the Home............................. 91.8 74.5 62.3 3.9 1.6 1.5 5.1

1 Load Each Week................................................... 7.3 5.8 4.7 0.3 Q Q 0.4

2 to 5 Loads Each Week........................................... 39.0 31.0 25.3 1.9 1.0 0.7 2.1

6 to 9 Loads Each Week........................................... 33.8 28.1 23.9 1.3 0.5 0.6 1.8

10 to 15 Loads Each Week....................................... 9.3 7.7 6.7 0.4 Q N 0.5

More than 15 Loads Each Week............................... 2.4 2.0 1.7 Q N N 0.2

Do Not Use a Clothes Washer in the Home................. 19.3 3.6 1.8 Q Q 0.8 0.6

Usual Water Temperature Setting

Wash Cycle

Hot............................................................................ 6.7 4.9 4.0 0.4 Q Q Q

Warm........................................................................ 50.5 42.2 35.5 2.3 1.0 0.7 2.5

Cold.......................................................................... 34.6 27.4 22.7 1.2 0.5 0.7 2.3

Rinse Cycle

Hot............................................................................ 1.6 1.0 0.8 Q Q N Q

Warm........................................................................ 18.2 14.4 12.1 0.8 0.5 Q 0.9

Cold.......................................................................... 72.0 59.1 49.3 3.1 1.2 1.3 4.2

Energy Star Clothes Washer1

Yes............................................................................... 21.7 18.2 15.2 1.1 0.5 0.4 1.0

No................................................................................ 10.4 7.3 5.7 0.4 Q Q 0.8

Don't Know................................................................... 4.5 3.9 3.0 0.3 Q Q 0.4

Unit is More Than 4 Years Old..................................... 55.1 45.1 38.3 2.1 0.9 0.7 3.0

Loads of Clothes Dried

Use a Clothes Dryer in the Home................................. 87.5 72.0 60.8 3.7 1.4 1.4 4.7

Every Time Clothes are Washed.............................. 72.4 59.7 50.2 2.9 1.3 1.3 3.9

Some, but Not All, Loads.......................................... 12.4 10.3 8.8 0.7 Q Q 0.6

Used Infrequently...................................................... 2.7 2.0 1.8 Q N Q Q

Do Not Use a Clothes Dryer in the Home..................... 23.6 6.1 3.3 Q 0.4 0.9 1.1

Energy Information Administration

2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables
 Million U.S. Housing Units

 OwnerOccupied 

Housing 

Units 

(millions)

Type of Owner-Occupied Housing Unit

U.S.

Housing 

Units 

(millions

Single-Family Units Apartments in 

Buildings With--

Table HC3.10 Home Appliances Usage Indicators by Owner-Occupied Housing Unit, 2005

Home Appliances Usage Indicators Detached Attached 2 to 4 

Units

5 or More 

Units

Mobile 

Homes

Other Appliances

Ceiling Fans

1................................................................................... 21.7 13.5 9.9 1.2 0.4 0.5 1.5

2................................................................................... 17.4 13.2 10.8 0.6 Q 0.4 1.3

3................................................................................... 12.3 10.1 8.6 0.4 Q Q 0.8

4 or More...................................................................... 25.8 23.7 22.1 0.6 Q Q 0.6

Use of Most-Used Ceiling Fan

Used All Summer...................................................... 18.7 14.7 12.3 0.8 Q 0.3 1.0

Used Quite a Bit........................................................ 16.2 13.0 11.1 0.7 0.4 Q 0.6

Used Only a Few Days or Nights.............................. 39.3 31.0 26.6 0.9 0.4 0.6 2.5

Not Used at All.......................................................... 2.9 1.9 1.4 QQQQ

Battery-Operated Appliances/Tools

Use Battery-Operated Appliances/Tools....................... 54.9 45.5 39.1 1.9 0.7 0.8 2.9

Plugged in All the Time............................................. 10.0 8.6 7.4 0.4 Q Q 0.4

Recharged as Needed.............................................. 41.6 33.9 29.1 1.4 0.4 0.6 2.4

Both Ways Are Used................................................ 3.3 3.0 2.5 Q Q N Q

Do Not Use Battery-Operated Appliances/Tools........... 56.2 32.6 25.0 2.2 1.1 1.5 2.8

Other Appliances Used

Auto Block/Engine/Battery Heater.................................... 0.8 0.7 0.7 N Q N Q

Hot Tub or Spa................................................................. 6.7 6.5 6.2 Q N N Q

Swimming Pool with Filters.............................................. 8.3 7.8 7.8 Q N N N

Water Bed........................................................................ 2.2 2.0 1.6 Q N Q Q

 1. The question of whether the appliance was an Energy Star appliance was asked only of those housing units having a appliance that was less 

than 4 years old.

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

 N = No cases in reporting sample.

 Notes: ● Because of rounding, data may not sum to totals. ● See Glossary for definition of terms used in these tables.

 Source: Energy Information Administration, Office of Energy Markets and End Use, Forms EIA-457 A, B, C of the 2005 

Residential Energy Consumption Survey.

Energy Information Administration

2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables
 Million U.S. Housing Units

Total.................................................................................... 111.1 33.0 8.0 3.4 5.9 14.4 1.2

Cooking Appliances

Frequency of Hot Meals Cooked

3 or More Times A Day................................................. 8.2 3.4 1.0 0.4 0.6 1.2 Q

2 Times A Day.............................................................. 24.6 8.6 2.3 1.0 1.6 3.5 0.2

Once a Day.................................................................. 42.3 10.1 2.3 1.1 2.1 4.3 0.4

A Few Times Each Week............................................. 27.2 7.8 2.0 0.7 1.3 3.6 Q

About Once a Week..................................................... 3.9 1.1 Q Q Q 0.6 Q

Less Than Once a Week.............................................. 4.1 1.4 Q Q Q 1.0 N

No Hot Meals Cooked.................................................. 0.9 0.4 Q N Q 0.3 Q

Coventional Oven

Use an Oven................................................................ 109.6 32.3 7.9 3.3 5.9 14.1 1.1

More Than Once a Day............................................. 8.9 3.5 1.3 0.3 0.4 1.2 0.3

Once a Day............................................................... 19.2 5.2 1.3 0.8 1.0 1.8 Q

Between Once a Day and Once a Week................... 32.0 7.9 2.2 0.7 1.2 3.5 Q

Once a Week............................................................ 19.1 5.6 1.2 0.6 1.0 2.6 Q

Less than Once a Week........................................... 30.3 10.2 1.8 0.9 2.2 5.0 0.3

Do Not Use an Oven.................................................... 1.5 0.7 Q Q Q 0.3 Q

Microwave Oven

Use a Microwave Oven................................................. 97.7 27.0 7.1 2.8 4.7 11.3 1.0

Most or all Food Cooked........................................... 8.3 2.5 0.7 0.2 0.5 0.9 Q

About Half of All Food Cooked.................................. 17.3 4.7 1.1 0.3 0.8 2.4 Q

Some or Very Little Food Cooked............................. 21.9 5.7 1.4 0.7 1.0 2.4 0.2

For Defrosting, Reheating, or Snacks....................... 50.2 14.0 4.0 1.6 2.4 5.5 0.5

Do Not Use a Microwave Oven..................................... 13.4 6.0 0.9 0.6 1.2 3.2 Q

Electric Coffee Maker

Use an Electric Coffee Maker....................................... 67.2 15.7 4.7 1.9 2.5 6.1 0.6

3 or More Times a Day............................................. 2.5 0.7 0.3 QQQQ

2 Times a Day.......................................................... 5.4 1.2 0.2 0.2 Q 0.5 Q

Once a Day............................................................... 36.9 7.9 2.4 0.9 1.2 3.1 0.3

A Few Times Each Week......................................... 9.7 2.6 0.9 0.3 0.2 1.1 Q

About Once a Week.................................................. 5.0 1.6 0.5 0.3 Q 0.7 Q

Less Than Once a Week.......................................... 7.6 1.7 0.5 0.2 0.5 0.6 Q

Do Not Use an Electric Coffee Maker........................... 43.9 17.3 3.3 1.6 3.4 8.3 0.6

Time Coffee Maker is Left On

Turned off Right Away.............................................. 21.6 6.1 1.3 0.6 1.2 2.8 Q

Less than 15 Minutes................................................ 11.2 2.8 0.8 0.4 0.3 1.1 Q

15 Minutes to 1 Hour................................................. 21.1 4.3 1.6 0.6 0.8 1.2 Q

More Than 1 Hour..................................................... 13.2 2.6 1.0 0.2 0.2 1.0 Q

Table HC4.10 Home Appliances Usage Indicators by Renter-Occupied Housing Unit, 2005

Home Appliances Usage Indicators Detached Attached 2 to 4 

Units

5 or More 

Units

Mobile 

Homes

 RenterOccupied 

Housing 

Units 

(millions)

Type of Renter-Occupied Housing Unit

U.S.

Housing 

Units 

(millions

Single-Family Units Apartments in 

Buildings With--

Energy Information Administration

2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables
 Million U.S. Housing Units

Table HC4.10 Home Appliances Usage Indicators by Renter-Occupied Housing Unit, 2005

Home Appliances Usage Indicators Detached Attached 2 to 4 

Units

5 or More 

Units

Mobile 

Homes

 RenterOccupied 

Housing 

Units 

(millions)

Type of Renter-Occupied Housing Unit

U.S.

Housing 

Units 

(millions

Single-Family Units Apartments in 

Buildings With--

Electric Toaster Oven

Use an Electric Toaster Oven....................................... 37.3 9.4 2.1 0.9 1.7 4.4 0.2

3 or More Times a Day............................................. 0.9 0.3 Q Q N Q N

2 Times a Day.......................................................... 3.2 0.6 Q Q Q 0.3 Q

Once a Day............................................................... 9.0 2.1 0.5 Q 0.3 1.0 Q

A Few Times Each Week......................................... 11.6 2.9 0.6 0.3 0.5 1.4 Q

About Once a Week.................................................. 4.4 1.1 0.2 Q 0.3 0.6 N

Less Than Once a Week.......................................... 8.1 2.2 0.4 0.2 0.5 1.1 Q

Do Not Use an Electric Toaster Oven........................... 73.8 23.6 5.9 2.5 4.2 10.0 1.0

Electric Toaster Oven Function

Used Only as a Toaster............................................ 22.0 5.5 1.4 0.5 0.9 2.5 Q

Used Only as an Oven.............................................. 5.7 1.4 0.2 Q 0.3 0.7 Q

Used Both as a Toaster and an Oven....................... 9.6 2.4 0.4 0.2 0.5 1.3 Q

Refrigerators

Most-Used RefrIgerator

Age of Most-Used Refrigerator

Less than 2 Years..................................................... 19.0 5.8 1.4 0.6 1.4 2.2 Q

2 to 4 Years.............................................................. 22.7 6.6 1.9 0.6 1.1 2.9 Q

5 to 9 Years.............................................................. 30.9 8.2 1.8 0.7 1.3 4.0 0.3

10 to 19 Years.......................................................... 25.7 6.1 1.8 0.8 1.0 2.2 0.3

20 Years or More...................................................... 6.1 1.5 0.3 0.3 Q 0.7 Q

Don't Know............................................................... 6.7 4.8 0.8 0.4 0.9 2.5 Q

Energy Star (Most-Used) Refrigerator1

Yes........................................................................... 23.9 5.4 1.9 0.5 1.0 1.8 Q

No............................................................................. 12.9 5.3 1.2 0.4 1.1 2.4 Q

Don't Know............................................................... 4.9 1.8 Q 0.3 0.4 0.8 Q

Unit is More Than 4 Years Old.................................. 69.4 20.6 4.7 2.3 3.4 9.4 0.8

Use a Second Refrigerator............................................ 24.6 2.1 1.1 0.4 Q 0.4 Q

Age of Second Refrigerator

Less than 2 Years..................................................... 2.3 0.4 QQQQQ

2 to 4 Years.............................................................. 3.8 0.7 0.3 Q Q Q N

5 to 9 Years.............................................................. 5.3 0.4 0.2 Q Q Q N

10 to 19 Years.......................................................... 8.6 0.4 0.3 Q N Q N

20 Years or More...................................................... 4.1 Q Q N N Q N

Don't Know............................................................... 0.5 Q Q N Q Q N

Do Not Use a Second Refrigerator............................... 86.3 30.8 6.9 3.0 5.7 14.0 1.2

Number of Months Turned on Each Year

1 to 3 Months............................................................ 1.9 0.5 QQQQN

4 to 6 Months............................................................ 0.9 QQQQNQ

7 to 11 Months.......................................................... 0.5 Q N N Q Q N

On all the Time......................................................... 21.2 1.5 0.8 0.3 Q 0.2 N

Energy Information Administration

2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables
 Million U.S. Housing Units

Table HC4.10 Home Appliances Usage Indicators by Renter-Occupied Housing Unit, 2005

Home Appliances Usage Indicators Detached Attached 2 to 4 

Units

5 or More 

Units

Mobile 

Homes

 RenterOccupied 

Housing 

Units 

(millions)

Type of Renter-Occupied Housing Unit

U.S.

Housing 

Units 

(millions

Single-Family Units Apartments in 

Buildings With--

Dishwasher

Use a Dishwasher............................................................ 64.7 12.2 3.2 1.4 1.6 5.7 0.3

At Least Once Each Day.............................................. 11.3 1.8 0.8 0.2 Q 0.6 Q

4 to 6 Times a Week.................................................... 11.7 1.6 0.6 Q Q 0.5 Q

2 to 3 Times a Week.................................................... 21.8 3.5 0.9 0.4 0.5 1.7 Q

Once each Week.......................................................... 9.0 2.0 0.3 Q 0.3 1.1 Q

Less than Once Each Week......................................... 10.9 3.3 0.5 0.4 0.6 1.8 Q

Do Not Use a Dishwasher................................................ 46.4 20.8 4.8 2.0 4.3 8.7 0.9

Energy Star Dishwasher1

Yes............................................................................... 16.4 2.2 0.7 0.2 Q 0.9 Q

No................................................................................ 6.6 1.6 0.5 Q 0.2 0.7 Q

Don't Know................................................................... 3.1 0.5 QQQQN

Unit is More Than 4 Years Old..................................... 85.0 28.7 6.6 2.9 5.4 12.7 1.1

Clothes Washers and Dryers

Clothes Washer

Use a Clothes Washer in the Home............................. 91.8 17.3 7.0 2.8 2.6 4.1 0.9

1 Load Each Week................................................... 7.3 1.5 0.4 0.3 Q 0.6 Q

2 to 5 Loads Each Week........................................... 39.0 8.1 2.9 1.3 1.3 2.3 0.3

6 to 9 Loads Each Week........................................... 33.8 5.7 2.5 0.9 0.8 1.2 0.4

10 to 15 Loads Each Week....................................... 9.3 1.6 1.0 0.2 Q Q Q

More than 15 Loads Each Week............................... 2.4 0.4 0.3 Q Q N Q

Do Not Use a Clothes Washer in the Home................. 19.3 15.7 1.0 0.7 3.4 10.3 0.3

Usual Water Temperature Setting

Wash Cycle

Hot............................................................................ 6.7 1.8 0.5 0.4 Q 0.6 Q

Warm........................................................................ 50.5 8.3 3.5 1.4 1.2 2.0 0.3

Cold.......................................................................... 34.6 7.2 3.0 1.0 1.2 1.5 0.5

Rinse Cycle

Hot............................................................................ 1.6 0.6 QQQQQ

Warm........................................................................ 18.2 3.8 1.3 0.7 0.6 1.0 Q

Cold.......................................................................... 72.0 12.9 5.5 1.9 1.9 2.9 0.7

Energy Star Clothes Washer1

Yes............................................................................... 21.7 3.6 1.6 0.7 0.6 0.6 Q

No................................................................................ 10.4 3.1 1.0 0.5 0.5 0.9 Q

Don't Know................................................................... 4.5 0.7 Q Q Q 0.3 Q

Unit is More Than 4 Years Old..................................... 55.1 10.0 4.3 1.4 1.3 2.4 0.6

Loads of Clothes Dried

Use a Clothes Dryer in the Home................................. 87.5 15.5 6.5 2.4 2.4 3.3 0.8

Every Time Clothes are Washed.............................. 72.4 12.8 5.2 2.1 2.0 2.8 0.7

Some, but Not All, Loads.......................................... 12.4 2.1 1.1 0.3 0.3 0.4 Q

Used Infrequently...................................................... 2.7 0.6 QQQQQ

Do Not Use a Clothes Dryer in the Home..................... 23.6 17.5 1.5 1.0 3.5 11.1 0.4

Energy Information Administration

2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables
 Million U.S. Housing Units

Table HC4.10 Home Appliances Usage Indicators by Renter-Occupied Housing Unit, 2005

Home Appliances Usage Indicators Detached Attached 2 to 4 

Units

5 or More 

Units

Mobile 

Homes

 RenterOccupied 

Housing 

Units 

(millions)

Type of Renter-Occupied Housing Unit

U.S.

Housing 

Units 

(millions

Single-Family Units Apartments in 

Buildings With--

Other Appliances

Ceiling Fans

1................................................................................... 21.7 8.2 1.6 0.8 1.5 3.8 0.4

2................................................................................... 17.4 4.1 1.5 0.4 0.7 1.5 Q

3................................................................................... 12.3 2.1 1.1 Q 0.4 0.5 Q

4 or More...................................................................... 25.8 2.1 1.6 Q Q Q N

Use of Most-Used Ceiling Fan

Used All Summer...................................................... 18.7 4.1 1.1 Q 0.9 1.7 Q

Used Quite a Bit........................................................ 16.2 3.2 1.0 0.4 0.5 1.1 Q

Used Only a Few Days or Nights.............................. 39.3 8.3 3.4 0.9 1.1 2.6 0.3

Not Used at All.......................................................... 2.9 1.0 Q Q 0.3 0.4 Q

Battery-Operated Appliances/Tools

Use Battery-Operated Appliances/Tools....................... 54.9 9.4 3.6 1.0 1.3 3.1 0.4

Plugged in All the Time............................................. 10.0 1.4 0.4 Q 0.2 0.6 Q

Recharged as Needed.............................................. 41.6 7.7 3.1 0.9 1.1 2.4 0.2

Both Ways Are Used................................................ 3.3 0.3 QQQQN

Do Not Use Battery-Operated Appliances/Tools........... 56.2 23.6 4.4 2.4 4.6 11.3 0.8

Other Appliances Used

Auto Block/Engine/Battery Heater.................................... 0.8 QQQQNN

Hot Tub or Spa................................................................. 6.7 Q Q Q N N Q

Swimming Pool with Filters.............................................. 8.3 0.5 0.4 Q N N N

Water Bed........................................................................ 2.2 QQQQQN

 1. The question of whether the appliance was an Energy Star appliance was asked only of those housing units having a appliance that was less 

than 4 years old.

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

 N = No cases in reporting sample.

 Notes: ● Because of rounding, data may not sum to totals. ● See Glossary for definition of terms used in these tables.

 Source: Energy Information Administration, Office of Energy Markets and End Use, Forms EIA-457 A, B, C of the 2005 

Residential Energy Consumption Survey.

Energy Information Administration

2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables
 Million U.S. Housing Units

Total............................................................................. 111.1 14.7 7.4 12.5 12.5 18.9 18.6 17.3 9.2

Cooking Appliances

Frequency of Hot Meals Cooked

3 or More Times A Day.......................................... 8.2 1.0 0.8 1.0 1.2 1.4 1.2 1.0 0.6

2 Times A Day....................................................... 24.6 3.6 1.7 2.3 2.9 4.6 3.8 3.9 1.9

Once a Day............................................................ 42.3 5.4 2.5 4.7 4.5 7.0 7.9 6.6 3.8

A Few Times Each Week...................................... 27.2 3.6 1.6 3.4 2.8 4.7 4.5 4.4 2.3

About Once a Week............................................... 3.9 0.4 0.3 0.5 0.6 0.6 0.6 0.7 Q

Less Than Once a Week....................................... 4.1 0.4 0.4 0.7 0.5 0.5 0.6 0.7 Q

No Hot Meals Cooked............................................ 0.9 0.2 QQQQQQQ

Coventional Oven

Use an Oven.......................................................... 109.6 14.4 7.2 12.4 12.4 18.6 18.3 17.2 9.1

More Than Once a Day...................................... 8.9 1.2 0.7 0.9 1.2 1.9 1.2 1.2 0.7

Once a Day........................................................ 19.2 2.4 1.4 1.5 1.8 2.8 3.6 3.4 2.2

Between Once a Day and Once a Week............ 32.0 4.3 1.6 3.4 3.5 5.5 5.7 5.2 2.9

Once a Week..................................................... 19.1 2.3 1.1 2.5 2.2 3.2 3.0 3.2 1.5

Less than Once a Week..................................... 30.3 4.3 2.5 4.1 3.6 5.2 4.8 4.2 1.7

Do Not Use an Oven.............................................. 1.5 0.3 Q Q Q 0.3 0.3 Q Q

Microwave Oven

Use a Microwave Oven.......................................... 97.7 12.4 6.5 11.0 10.7 17.1 16.0 15.7 8.1

Most or all Food Cooked.................................... 8.3 1.1 0.7 1.1 0.7 1.3 1.6 1.2 0.6

About Half of All Food Cooked........................... 17.3 1.8 1.1 1.8 2.2 2.9 3.1 3.1 1.4

Some or Very Little Food Cooked....................... 21.9 2.9 1.0 1.8 2.6 4.3 3.6 3.5 2.2

For Defrosting, Reheating, or Snacks................. 50.2 6.6 3.7 6.4 5.3 8.7 7.7 8.0 3.9

Do Not Use a Microwave Oven.............................. 13.4 2.2 0.9 1.5 1.8 1.7 2.5 1.6 1.1

Electric Coffee Maker

Use an Electric Coffee Maker................................ 67.2 8.1 3.9 7.6 7.1 11.6 11.2 11.4 6.3

3 or More Times a Day....................................... 2.5 0.3 Q 0.4 0.4 0.5 0.3 0.3 Q

2 Times a Day.................................................... 5.4 0.6 0.4 0.8 0.5 0.9 0.9 0.8 0.6

Once a Day........................................................ 36.9 4.0 2.2 4.0 3.8 6.5 6.3 6.7 3.5

A Few Times Each Week................................... 9.7 1.2 0.4 1.2 0.9 1.8 1.6 1.6 0.9

About Once a Week........................................... 5.0 0.8 0.3 0.7 0.7 0.7 1.0 0.6 0.3

Less Than Once a Week.................................... 7.6 1.2 0.4 0.7 0.8 1.3 1.1 1.4 0.8

Do Not Use an Electric Coffee Maker.................... 43.9 6.6 3.5 4.9 5.4 7.3 7.4 6.0 3.0

Time Coffee Maker is Left On

Turned off Right Away........................................ 21.6 2.9 1.5 2.6 1.9 3.7 3.6 3.3 2.1

Less than 15 Minutes......................................... 11.2 1.3 0.6 1.3 1.5 2.1 1.8 1.7 0.9

15 Minutes to 1 Hour.......................................... 21.1 2.3 1.1 2.5 2.2 3.3 3.5 3.9 2.2

More Than 1 Hour.............................................. 13.2 1.5 0.8 1.3 1.5 2.5 2.3 2.4 0.9

1940 to 

1949

1950 to 

1959

1960 to 

1969

1970 to 

1979

Table HC5.10 Home Appliances Usage Indicators by Year of Construction, 2005

Year of Construction

1980 to 

1989

1990 to 

1999

2000 to 

Home Appliances Usage Indicators 2005

Housing 

Units 

(millions)

Before 

1940

Energy Information Administration

2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables
 Million U.S. Housing Units

1940 to 

1949

1950 to 

1959

1960 to 

1969

1970 to 

1979

Table HC5.10 Home Appliances Usage Indicators by Year of Construction, 2005

Year of Construction

1980 to 

1989

1990 to 

1999

2000 to 

Home Appliances Usage Indicators 2005

Housing 

Units 

(millions)

Before 

1940

Electric Toaster Oven

Use an Electric Toaster Oven................................ 37.3 4.7 2.8 4.5 4.0 6.0 6.4 5.4 3.4

3 or More Times a Day....................................... 0.9 Q QQQQQQQ

2 Times a Day.................................................... 3.2 0.5 0.3 Q 0.6 0.4 0.6 0.4 0.4

Once a Day........................................................ 9.0 1.0 0.8 1.0 1.0 1.8 1.6 1.3 0.6

A Few Times Each Week................................... 11.6 1.5 0.5 1.2 1.3 2.2 1.7 2.0 1.2

About Once a Week........................................... 4.4 0.5 0.3 0.8 0.5 0.5 0.8 0.5 0.6

Less Than Once a Week.................................... 8.1 1.0 0.9 1.2 0.6 1.1 1.5 1.1 0.7

Do Not Use an Electric Toaster Oven.................... 73.8 10.0 4.6 8.0 8.4 12.9 12.1 11.9 5.8

Electric Toaster Oven Function

Used Only as a Toaster...................................... 22.0 2.6 1.8 2.6 2.2 3.3 4.2 2.9 2.3

Used Only as an Oven....................................... 5.7 0.7 0.4 0.7 0.8 0.9 0.9 0.8 0.4

Used Both as a Toaster and an Oven................ 9.6 1.3 0.5 1.2 1.1 1.7 1.3 1.6 0.8

Refrigerators

Most-Used RefrIgerator

Age of Most-Used Refrigerator

Less than 2 Years.............................................. 19.0 2.2 1.1 2.1 1.4 2.8 3.1 2.4 3.8

2 to 4 Years........................................................ 22.7 2.7 1.6 2.3 2.6 4.1 3.2 2.6 3.6

5 to 9 Years........................................................ 30.9 4.4 2.2 3.2 3.6 4.8 4.8 6.8 1.0

10 to 19 Years.................................................... 25.7 3.4 1.9 3.5 3.0 3.9 5.1 4.4 0.4

20 Years or More................................................ 6.1 1.1 0.4 0.7 1.1 1.6 1.2 Q N

Don't Know......................................................... 6.7 0.9 0.3 0.7 0.7 1.6 1.1 1.1 0.3

Energy Star (Most-Used) Refrigerator1

Yes..................................................................... 23.9 3.0 1.6 2.8 2.1 3.7 3.6 3.2 3.9

No...................................................................... 12.9 1.4 0.8 1.2 1.5 2.5 1.9 1.3 2.2

Don't Know......................................................... 4.9 0.5 0.3 0.5 0.5 0.7 0.8 0.5 1.2

Unit is More Than 4 Years Old........................... 69.4 9.8 4.8 8.1 8.4 11.9 12.2 12.4 1.8

Use a Second Refrigerator...................................... 24.6 2.5 1.3 2.8 3.0 4.0 3.8 4.9 2.4

Age of Second Refrigerator

Less than 2 Years.............................................. 2.3 Q Q Q Q 0.4 0.4 0.3 0.7

2 to 4 Years........................................................ 3.8 0.5 Q 0.3 0.4 0.6 0.6 0.5 0.7

5 to 9 Years........................................................ 5.3 0.6 0.3 0.6 0.6 0.7 0.6 1.6 0.3

10 to 19 Years.................................................... 8.6 0.7 0.5 1.1 1.0 1.2 1.6 1.9 0.5

20 Years or More................................................ 4.1 0.6 0.2 0.6 0.7 0.9 0.4 0.4 Q

Don't Know......................................................... 0.5 Q N QQQQQQ

Do Not Use a Second Refrigerator......................... 86.3 12.2 6.0 9.7 9.4 14.8 14.8 12.5 6.9

Number of Months Turned on Each Year

1 to 3 Months..................................................... 1.9 0.3 Q Q Q 0.4 0.3 0.4 Q

4 to 6 Months..................................................... 0.9 Q QQQQQQQ

7 to 11 Months................................................... 0.5 Q Q N QQQQQ

On all the Time................................................... 21.2 2.0 1.2 2.4 2.6 3.5 3.3 4.3 1.9

Energy Information Administration

2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables
 Million U.S. Housing Units

1940 to 

1949

1950 to 

1959

1960 to 

1969

1970 to 

1979

Table HC5.10 Home Appliances Usage Indicators by Year of Construction, 2005

Year of Construction

1980 to 

1989

1990 to 

1999

2000 to 

Home Appliances Usage Indicators 2005

Housing 

Units 

(millions)

Before 

1940

Dishwasher

Use a Dishwasher..................................................... 64.7 5.6 2.8 5.1 6.0 11.3 12.6 13.5 7.8

At Least Once Each Day........................................ 11.3 1.2 0.3 1.0 0.9 1.8 2.1 2.8 1.2

4 to 6 Times a Week.............................................. 11.7 1.0 0.6 0.7 1.1 1.9 2.1 2.8 1.5

2 to 3 Times a Week.............................................. 21.8 1.7 1.0 1.7 1.8 4.2 4.1 4.3 2.8

Once each Week................................................... 9.0 0.9 0.5 0.7 1.0 1.5 1.7 1.7 0.9

Less than Once Each Week.................................. 10.9 0.8 0.3 1.0 1.1 1.9 2.5 1.9 1.4

Do Not Use a Dishwasher......................................... 46.4 9.1 4.6 7.4 6.4 7.5 6.0 3.8 1.4

Energy Star Dishwasher1

Yes........................................................................ 16.4 1.4 0.7 1.3 1.3 2.7 2.6 2.3 4.0

No.......................................................................... 6.6 0.4 0.4 0.3 0.6 1.2 1.0 0.9 1.8

Don't Know............................................................ 3.1 0.4 Q Q Q 0.6 0.4 0.4 0.9

Unit is More Than 4 Years Old............................... 85.0 12.5 6.2 10.8 10.4 14.4 14.5 13.7 2.5

Clothes Washers and Dryers

Clothes Washer

Use a Clothes Washer in the Home....................... 91.8 11.1 6.0 10.7 9.9 14.5 15.6 15.6 8.4

1 Load Each Week............................................. 7.3 1.1 0.7 1.2 0.7 1.0 0.9 0.8 0.7

2 to 5 Loads Each Week.................................... 39.0 4.8 2.8 4.6 4.2 6.4 6.8 5.9 3.5

6 to 9 Loads Each Week.................................... 33.8 3.7 1.7 3.8 3.8 5.2 6.2 6.4 3.0

10 to 15 Loads Each Week................................ 9.3 1.1 0.6 0.9 1.0 1.6 1.2 2.0 1.0

More than 15 Loads Each Week........................ 2.4 0.3 Q 0.3 Q 0.3 0.4 0.5 0.3

Do Not Use a Clothes Washer in the Home........... 19.3 3.6 1.4 1.8 2.6 4.4 3.0 1.7 0.8

Usual Water Temperature Setting

Wash Cycle

Hot..................................................................... 6.7 0.8 0.4 0.8 1.0 1.3 1.2 0.7 0.5

Warm................................................................. 50.5 6.4 3.5 5.9 5.8 7.8 7.9 8.5 4.8

Cold................................................................... 34.6 3.9 2.1 4.0 3.1 5.5 6.5 6.4 3.1

Rinse Cycle

Hot..................................................................... 1.6 Q Q Q 0.3 0.4 Q 0.2 Q

Warm................................................................. 18.2 2.1 1.6 2.2 2.0 2.9 3.2 2.7 1.6

Cold................................................................... 72.0 8.9 4.3 8.4 7.5 11.2 12.2 12.7 6.7

Energy Star Clothes Washer1

Yes........................................................................ 21.7 2.6 1.3 2.5 2.3 3.0 3.7 3.3 2.9

No.......................................................................... 10.4 1.0 0.4 1.0 1.0 1.7 2.1 1.7 1.6

Don't Know............................................................ 4.5 0.3 0.3 0.4 0.4 0.8 0.8 0.7 1.0

Unit is More Than 4 Years Old............................... 55.1 7.2 4.0 6.9 6.2 9.0 9.0 9.8 2.9

Loads of Clothes Dried

Use a Clothes Dryer in the Home........................... 87.5 10.2 5.4 9.9 9.3 14.2 15.0 15.3 8.2

Every Time Clothes are Washed........................ 72.4 7.7 4.3 7.6 7.5 11.9 12.9 13.3 7.3

Some, but Not All, Loads.................................... 12.4 2.0 1.0 1.9 1.4 1.8 1.8 1.8 0.8

Used Infrequently............................................... 2.7 0.5 Q 0.4 0.4 0.5 0.4 Q Q

Do Not Use a Clothes Dryer in the Home............... 23.6 4.5 2.0 2.7 3.1 4.7 3.5 2.1 1.0

Energy Information Administration

2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables
 Million U.S. Housing Units

1940 to 

1949

1950 to 

1959

1960 to 

1969

1970 to 

1979

Table HC5.10 Home Appliances Usage Indicators by Year of Construction, 2005

Year of Construction

1980 to 

1989

1990 to 

1999

2000 to 

Home Appliances Usage Indicators 2005

Housing 

Units 

(millions)

Before 

1940

Other Appliances

Ceiling Fans

1............................................................................ 21.7 3.4 1.0 2.6 2.0 4.1 3.8 3.3 1.4

2............................................................................ 17.4 2.1 0.9 1.8 1.9 3.0 2.8 3.0 1.9

3............................................................................ 12.3 1.5 1.1 1.5 1.5 1.8 1.8 2.0 1.1

4 or More............................................................... 25.8 2.6 1.5 2.8 2.5 3.7 4.3 5.6 2.8

Use of Most-Used Ceiling Fan

Used All Summer............................................... 18.7 2.6 1.2 2.4 2.2 3.5 2.5 3.0 1.3

Used Quite a Bit................................................. 16.2 2.1 0.8 1.9 1.9 2.7 2.6 2.9 1.3

Used Only a Few Days or Nights........................ 39.3 4.5 2.2 4.1 3.5 6.0 7.2 7.5 4.2

Not Used at All................................................... 2.9 0.3 0.3 0.2 Q 0.5 0.5 0.5 0.4

Battery-Operated Appliances/Tools

Use Battery-Operated Appliances/Tools................ 54.9 6.0 3.4 6.1 6.2 8.8 8.7 10.2 5.4

Plugged in All the Time...................................... 10.0 0.9 0.5 1.2 1.2 1.7 1.3 2.0 1.1

Recharged as Needed........................................ 41.6 4.7 2.9 4.6 4.7 6.5 6.9 7.2 4.0

Both Ways Are Used.......................................... 3.3 0.3 Q 0.3 0.3 0.5 0.5 1.0 0.3

Do Not Use Battery-Operated Appliances/Tools.... 56.2 8.7 4.0 6.4 6.2 10.1 9.8 7.1 3.8

Other Appliances Used

Auto Block/Engine/Battery Heater............................. 0.8 Q QQQQQQQ

Hot Tub or Spa.......................................................... 6.7 0.6 Q 0.4 0.7 1.3 1.2 1.5 0.9

Swimming Pool with Filters........................................ 8.3 0.5 0.2 0.8 1.2 1.9 1.5 1.4 0.7

Water Bed................................................................. 2.2 Q Q 0.3 Q 0.4 0.4 0.4 Q

 1. The question of whether the appliance was an Energy Star appliance was asked only of those housing units having a appliance that was less 

than 4 years old.

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

 N = No cases in reporting sample.

 Notes: ● Because of rounding, data may not sum to totals. ● See Glossary for definition of terms used in these tables.

 Source: Energy Information Administration, Office of Energy Markets and End Use, Forms EIA-457 A, B, C of the 2005 

Residential Energy Consumption Survey.

Energy Information Administration

2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables
Table HC6.10 Home Appliances Usage Indicators by Number of Household Members, 2005

Total.............................................................................. 111.1 30.0 34.8 18.4 15.9 12.0

Cooking Appliances

Frequency of Hot Meals Cooked

3 or More Times A Day........................................... 8.2 1.4 1.9 1.4 1.0 2.4

2 Times A Day........................................................ 24.6 4.3 7.6 4.3 4.8 3.7

Once a Day............................................................ 42.3 9.9 14.4 7.4 6.7 4.0

A Few Times Each Week....................................... 27.2 8.9 9.1 4.6 3.1 1.5

About Once a Week............................................... 3.9 2.2 1.0 0.5 Q Q

Less Than Once a Week........................................ 4.1 2.8 0.7 0.2 Q 0.3

No Hot Meals Cooked............................................. 0.9 0.6 Q Q N Q

Coventional Oven

Use an Oven.......................................................... 109.6 29.5 34.4 18.2 15.7 11.8

More Than Once a Day....................................... 8.9 1.0 2.2 1.8 1.8 2.0

Once a Day......................................................... 19.2 2.7 6.3 4.0 3.6 2.7

Between Once a Day and Once a Week............. 32.0 7.0 11.3 5.5 5.5 2.7

Once a Week...................................................... 19.1 5.3 6.5 3.4 2.0 1.9

Less than Once a Week...................................... 30.3 13.5 8.1 3.5 2.8 2.4

Do Not Use an Oven............................................... 1.5 0.6 0.4 Q Q Q

Microwave Oven

Use a Microwave Oven........................................... 97.7 25.4 31.4 16.6 14.1 10.2

Most or all Food Cooked..................................... 8.3 3.5 2.2 1.1 0.9 0.5

About Half of All Food Cooked............................ 17.3 5.3 5.5 2.6 2.4 1.6

Some or Very Little Food Cooked....................... 21.9 4.7 8.1 3.8 3.1 2.3

For Defrosting, Reheating, or Snacks................. 50.2 12.0 15.5 9.1 7.7 5.9

Do Not Use a Microwave Oven............................... 13.4 4.6 3.4 1.8 1.8 1.7

Electric Coffee Maker

Use an Electric Coffee Maker................................. 67.2 16.0 24.0 10.7 9.8 6.6

3 or More Times a Day........................................ 2.5 0.4 0.8 0.6 0.4 0.3

2 Times a Day..................................................... 5.4 0.8 2.2 0.9 0.8 0.7

Once a Day......................................................... 36.9 8.6 14.0 5.5 5.2 3.6

A Few Times Each Week.................................... 9.7 2.6 3.3 1.5 1.5 0.9

About Once a Week............................................ 5.0 1.3 1.5 1.1 0.7 0.3

Less Than Once a Week.................................... 7.6 2.3 2.1 1.2 1.2 0.8

Do Not Use an Electric Coffee Maker..................... 43.9 14.0 10.8 7.7 6.0 5.4

Time Coffee Maker is Left On

Turned off Right Away......................................... 21.6 6.8 7.0 3.1 2.8 2.0

Less than 15 Minutes.......................................... 11.2 2.5 3.8 1.7 1.9 1.4

15 Minutes to 1 Hour........................................... 21.1 3.9 8.1 3.7 3.1 2.3

More Than 1 Hour............................................... 13.2 2.9 5.1 2.2 2.0 0.9

3

 Members

4

 Members

5 or More 

Members

 Million U.S. Housing Units

Number of Households With --

Housing 

Units 

(millions)

1

 Member

2

Home Appliances Usage Indicators Members

Energy Information Administration

2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables
Table HC6.10 Home Appliances Usage Indicators by Number of Household Members, 2005

3

 Members

4

 Members

5 or More 

Members

 Million U.S. Housing Units

Number of Households With --

Housing 

Units 

(millions)

1

 Member

2

Home Appliances Usage Indicators Members

Electric Toaster Oven

Use an Electric Toaster Oven................................. 37.3 9.4 12.4 6.1 5.2 4.1

3 or More Times a Day........................................ 0.9 Q 0.3 Q Q Q

2 Times a Day..................................................... 3.2 0.7 0.8 0.5 0.7 0.6

Once a Day......................................................... 9.0 2.0 3.1 1.8 1.4 0.7

A Few Times Each Week.................................... 11.6 3.3 3.5 1.9 1.8 1.2

About Once a Week............................................ 4.4 0.8 1.8 0.8 0.4 0.6

Less Than Once a Week.................................... 8.1 2.4 3.0 1.1 0.8 0.8

Do Not Use an Electric Toaster Oven..................... 73.8 20.7 22.4 12.3 10.6 7.9

Electric Toaster Oven Function

Used Only as a Toaster...................................... 22.0 4.3 7.4 3.8 3.6 2.8

Used Only as an Oven........................................ 5.7 2.0 1.8 0.7 0.7 0.4

Used Both as a Toaster and an Oven................. 9.6 3.0 3.2 1.6 0.9 0.9

Refrigerators

Most-Used RefrIgerator

Age of Most-Used Refrigerator

Less than 2 Years............................................... 19.0 4.6 5.5 3.5 2.7 2.7

2 to 4 Years........................................................ 22.7 4.2 7.6 3.8 4.1 3.0

5 to 9 Years........................................................ 30.9 7.5 10.0 4.9 5.2 3.2

10 to 19 Years.................................................... 25.7 8.3 8.4 4.2 2.8 2.0

20 Years or More................................................ 6.1 3.0 1.8 0.8 0.2 0.2

Don't Know.......................................................... 6.7 2.4 1.4 1.2 0.9 0.9

Energy Star (Most-Used) Refrigerator1

Yes..................................................................... 23.9 3.8 7.8 4.6 4.4 3.3

No....................................................................... 12.9 3.3 3.9 2.1 1.7 1.9

Don't Know.......................................................... 4.9 1.7 1.4 0.6 0.7 0.5

Unit is More Than 4 Years Old............................ 69.4 21.3 21.7 11.1 9.1 6.3

Use a Second Refrigerator...................................... 24.6 3.1 9.2 5.1 4.0 3.3

Age of Second Refrigerator

Less than 2 Years............................................... 2.3 Q 0.8 0.7 0.4 0.3

2 to 4 Years........................................................ 3.8 Q 1.5 0.7 0.6 0.8

5 to 9 Years........................................................ 5.3 0.7 1.7 1.2 0.9 0.7

10 to 19 Years.................................................... 8.6 1.0 3.4 1.6 1.4 1.1

20 Years or More................................................ 4.1 0.9 1.7 0.8 0.5 0.2

Don't Know.......................................................... 0.5 QQQQ Q

Do Not Use a Second Refrigerator......................... 86.3 26.9 25.7 13.3 11.8 8.7

Number of Months Turned on Each Year

1 to 3 Months...................................................... 1.9 Q 0.5 0.5 0.4 0.4

4 to 6 Months...................................................... 0.9 Q 0.3 0.3 Q Q

7 to 11 Months.................................................... 0.5 Q 0.3 Q Q N

On all the Time................................................... 21.2 2.7 8.1 4.2 3.5 2.8

Energy Information Administration

2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables
Table HC6.10 Home Appliances Usage Indicators by Number of Household Members, 2005

3

 Members

4

 Members

5 or More 

Members

 Million U.S. Housing Units

Number of Households With --

Housing 

Units 

(millions)

1

 Member

2

Home Appliances Usage Indicators Members

Dishwasher

Use a Dishwasher...................................................... 64.7 13.1 23.3 11.0 10.6 6.7

At Least Once Each Day........................................ 11.3 0.3 2.9 2.2 2.8 3.1

4 to 6 Times a Week.............................................. 11.7 0.6 3.9 2.9 2.9 1.4

2 to 3 Times a Week.............................................. 21.8 4.6 10.2 3.3 2.7 1.0

Once each Week.................................................... 9.0 3.6 3.3 1.0 0.7 0.3

Less than Once Each Week................................... 10.9 3.9 3.0 1.6 1.4 1.0

Do Not Use a Dishwasher.......................................... 46.4 16.9 11.5 7.4 5.3 5.3

Energy Star Dishwasher1

Yes......................................................................... 16.4 2.0 6.4 2.9 3.1 2.0

No........................................................................... 6.6 1.6 2.2 1.0 1.1 0.8

Don't Know............................................................. 3.1 0.5 1.0 0.7 0.5 0.4

Unit is More Than 4 Years Old................................ 85.0 26.0 25.3 13.8 11.1 8.8

Clothes Washers and Dryers

Clothes Washer

Use a Clothes Washer in the Home........................ 91.8 21.3 30.1 15.9 14.0 10.6

1 Load Each Week............................................. 7.3 5.1 1.3 0.4 0.3 Q

2 to 5 Loads Each Week..................................... 39.0 13.0 15.6 5.1 2.9 2.5

6 to 9 Loads Each Week..................................... 33.8 3.0 11.4 7.7 7.5 4.2

10 to 15 Loads Each Week................................. 9.3 Q 1.5 2.2 2.6 2.6

More than 15 Loads Each Week......................... 2.4 N Q 0.4 0.6 1.1

Do Not Use a Clothes Washer in the Home............ 19.3 8.7 4.7 2.5 1.9 1.4

Usual Water Temperature Setting

Wash Cycle

Hot...................................................................... 6.7 2.1 2.1 0.8 1.0 0.7

Warm.................................................................. 50.5 12.2 17.2 8.6 6.7 5.8

Cold.................................................................... 34.6 6.9 10.8 6.5 6.3 4.0

Rinse Cycle

Hot...................................................................... 1.6 0.4 0.4 0.3 0.2 Q

Warm.................................................................. 18.2 4.7 5.7 2.5 2.5 2.8

Cold.................................................................... 72.0 16.3 24.0 13.0 11.2 7.5

Energy Star Clothes Washer1

Yes......................................................................... 21.7 2.7 7.5 4.5 3.9 3.2

No........................................................................... 10.4 1.8 3.0 2.1 1.9 1.7

Don't Know............................................................. 4.5 1.3 1.3 0.8 0.7 0.5

Unit is More Than 4 Years Old................................ 55.1 15.5 18.4 8.5 7.5 5.2

Loads of Clothes Dried

Use a Clothes Dryer in the Home........................... 87.5 19.9 29.2 15.1 13.4 9.9

Every Time Clothes are Washed........................ 72.4 16.0 24.0 12.9 11.2 8.2

Some, but Not All, Loads.................................... 12.4 2.9 4.4 1.8 2.0 1.4

Used Infrequently................................................ 2.7 1.0 0.7 0.4 Q 0.3

Do Not Use a Clothes Dryer in the Home............... 23.6 10.1 5.7 3.2 2.5 2.1

Energy Information Administration

2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables
Table HC6.10 Home Appliances Usage Indicators by Number of Household Members, 2005

3

 Members

4

 Members

5 or More 

Members

 Million U.S. Housing Units

Number of Households With --

Housing 

Units 

(millions)

1

 Member

2

Home Appliances Usage Indicators Members

Other Appliances

Ceiling Fans

1............................................................................. 21.7 6.7 6.2 3.4 3.2 2.1

2............................................................................. 17.4 4.7 5.4 2.9 2.3 2.0

3............................................................................. 12.3 2.8 4.5 1.9 1.7 1.3

4 or More................................................................ 25.8 4.1 9.3 4.7 4.5 3.2

Use of Most-Used Ceiling Fan

Used All Summer................................................ 18.7 4.7 6.0 2.9 2.9 2.3

Used Quite a Bit.................................................. 16.2 4.3 5.6 2.6 2.2 1.6

Used Only a Few Days or Nights........................ 39.3 8.6 13.2 6.8 6.2 4.6

Not Used at All.................................................... 2.9 0.9 0.7 0.7 0.5 Q

Battery-Operated Appliances/Tools

Use Battery-Operated Appliances/Tools................. 54.9 9.9 20.4 9.8 9.0 5.8

Plugged in All the Time....................................... 10.0 1.8 4.0 1.8 1.6 0.9

Recharged as Needed........................................ 41.6 7.8 15.0 7.4 6.8 4.7

Both Ways Are Used.......................................... 3.3 0.4 1.4 0.6 0.6 0.2

Do Not Use Battery-Operated Appliances/Tools..... 56.2 20.1 14.4 8.6 6.9 6.2

Other Appliances Used

Auto Block/Engine/Battery Heater.............................. 0.8 Q 0.4 Q Q Q

Hot Tub or Spa........................................................... 6.7 0.7 2.8 1.1 1.1 0.9

Swimming Pool with Filters........................................ 8.3 0.6 2.6 1.7 1.7 1.6

Water Bed.................................................................. 2.2 0.4 0.6 0.5 0.3 0.4

 1. The question of whether the appliance was an Energy Star appliance was asked only of those housing units having a appliance that was 

less than 4 years old.

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

 N = No cases in reporting sample.

 Notes: ● Because of rounding, data may not sum to totals. ● See Glossary for definition of terms used in these tables.

 Source: Energy Information Administration, Office of Energy Markets and End Use, Forms EIA-457 A, B, C of the 2005 

Residential Energy Consumption Survey.

Energy Information Administration

2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables
Total................................................................. 111.1 26.7 28.8 20.6 13.1 22.0 16.6 38.6

Cooking Appliances

Frequency of Hot Meals Cooked

3 or More Times A Day.............................. 8.2 2.9 2.5 1.3 0.5 1.0 2.4 4.6

2 Times A Day........................................... 24.6 6.5 7.0 4.3 3.2 3.6 4.8 10.3

Once a Day................................................ 42.3 8.8 9.8 8.7 5.1 10.0 5.0 12.9

A Few Times Each Week........................... 27.2 5.6 7.2 4.7 3.3 6.3 3.2 7.5

About Once a Week................................... 3.9 1.1 1.1 0.6 0.5 0.6 0.4 1.4

Less Than Once a Week............................ 4.1 1.3 1.0 0.9 0.5 0.4 0.7 1.4

No Hot Meals Cooked................................ 0.9 0.5 Q Q Q Q 0.2 0.5

Coventional Oven

Use an Oven.............................................. 109.6 26.1 28.5 20.2 12.9 21.8 16.3 37.8

More Than Once a Day.......................... 8.9 2.3 2.1 1.8 1.0 1.7 1.9 3.7

Once a Day............................................ 19.2 3.5 5.2 3.7 2.4 4.4 2.3 6.2

Between Once a Day and Once a Week 32.0 5.5 8.0 6.3 4.2 8.0 3.3 8.9

Once a Week......................................... 19.1 4.7 5.4 3.4 2.4 3.3 2.8 6.5

Less than Once a Week......................... 30.3 10.0 7.8 5.1 3.0 4.4 5.9 12.5

Do Not Use an Oven.................................. 1.5 0.7 0.3 0.3 Q Q 0.4 0.8

Microwave Oven

Use a Microwave Oven.............................. 97.7 21.9 25.0 18.2 11.9 20.6 13.6 31.9

Most or all Food Cooked......................... 8.3 2.6 2.0 1.3 1.1 1.3 1.5 3.0

About Half of All Food Cooked............... 17.3 3.6 5.0 3.1 2.2 3.5 2.0 5.2

Some or Very Little Food Cooked........... 21.9 3.9 5.1 4.6 2.8 5.4 2.3 5.9

For Defrosting, Reheating, or Snacks..... 50.2 11.9 12.9 9.1 5.9 10.4 7.7 17.8

Do Not Use a Microwave Oven.................. 13.4 4.8 3.8 2.3 1.2 1.3 3.1 6.7

Electric Coffee Maker

Use an Electric Coffee Maker..................... 67.2 13.6 16.7 12.7 8.4 15.7 8.1 19.8

3 or More Times a Day........................... 2.5 0.8 0.8 0.5 Q 0.3 0.5 1.3

2 Times a Day........................................ 5.4 1.2 1.5 1.0 0.5 1.1 0.8 1.9

Once a Day............................................ 36.9 7.0 9.2 7.4 4.6 8.8 4.2 10.3

A Few Times Each Week....................... 9.7 1.7 2.3 1.7 1.3 2.7 1.0 2.5

About Once a Week............................... 5.0 0.9 1.2 0.7 0.8 1.4 0.4 1.3

Less Than Once a Week........................ 7.6 1.9 1.9 1.3 1.0 1.5 1.1 2.7

Do Not Use an Electric Coffee Maker......... 43.9 13.2 12.0 7.8 4.6 6.2 8.5 18.7

Time Coffee Maker is Left On

Turned off Right Away............................ 21.6 4.8 5.5 4.1 2.7 4.5 3.0 6.9

Less than 15 Minutes............................. 11.2 2.5 2.8 2.2 1.6 2.0 1.7 3.7

15 Minutes to 1 Hour.............................. 21.1 3.5 4.9 4.2 2.8 5.7 2.0 5.5

More Than 1 Hour.................................. 13.2 2.7 3.5 2.2 1.3 3.5 1.3 3.8

Less than 

$20,000

$20,000 to 

Home Appliances Usage Indicators $39,999

Table HC7.10 Home Appliances Usage Indicators by Household Income, 2005

Below 

Poverty 

Line

Eligible for 

Federal 

Assistance $40,000 to 1

$59,999

$60,000 to 

$79,999

$80,000 or 

More

 Million U.S. Housing Units

2005 Household Income

Housing 

Units 

(millions)

Energy Information Administration

2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables
Less than 

$20,000

$20,000 to 

Home Appliances Usage Indicators $39,999

Table HC7.10 Home Appliances Usage Indicators by Household Income, 2005

Below 

Poverty 

Line

Eligible for 

Federal 

Assistance $40,000 to 1

$59,999

$60,000 to 

$79,999

$80,000 or 

More

 Million U.S. Housing Units

2005 Household Income

Housing 

Units 

(millions)

Electric Toaster Oven

Use an Electric Toaster Oven.................... 37.3 7.3 9.0 7.7 4.6 8.7 4.5 10.9

3 or More Times a Day........................... 0.9 Q Q Q Q 0.3 Q 0.3

2 Times a Day........................................ 3.2 0.5 0.7 0.6 0.5 0.9 0.3 0.8

Once a Day............................................ 9.0 1.8 2.2 1.8 1.0 2.3 1.1 2.6

A Few Times Each Week....................... 11.6 2.3 2.8 2.1 1.4 3.0 1.3 3.3

About Once a Week............................... 4.4 0.8 1.2 1.0 0.7 0.8 0.6 1.4

Less Than Once a Week........................ 8.1 1.8 1.9 2.0 1.0 1.4 1.0 2.4

Do Not Use an Electric Toaster Oven......... 73.8 19.4 19.8 12.9 8.5 13.3 12.2 27.6

Electric Toaster Oven Function

Used Only as a Toaster.......................... 22.0 4.1 5.2 4.6 2.6 5.5 3.1 6.7

Used Only as an Oven............................ 5.7 1.3 1.5 1.2 0.8 0.9 0.4 1.7

Used Both as a Toaster and an Oven..... 9.6 1.9 2.4 1.9 1.2 2.3 0.9 2.6

Refrigerators

Most-Used RefrIgerator

Age of Most-Used Refrigerator

Less than 2 Years.................................. 19.0 4.4 4.5 3.3 2.4 4.3 3.2 6.4

2 to 4 Years............................................ 22.7 4.5 5.9 4.6 2.7 5.0 3.3 7.4

5 to 9 Years............................................ 30.9 6.3 8.2 6.2 3.9 6.4 3.9 9.5

10 to 19 Years........................................ 25.7 6.6 6.5 4.7 2.9 4.9 3.4 8.8

20 Years or More.................................... 6.1 1.8 1.9 1.0 0.6 0.8 1.0 2.3

Don't Know............................................. 6.7 3.1 1.9 0.8 0.5 0.5 2.0 4.1

Energy Star (Most-Used) Refrigerator1

Yes......................................................... 23.9 3.7 5.4 4.6 3.6 6.5 2.7 6.3

No.......................................................... 12.9 3.6 3.6 2.5 1.1 2.0 2.9 5.3

Don't Know............................................. 4.9 1.6 1.4 0.8 0.4 0.8 0.9 2.2

Unit is More Than 4 Years Old................ 69.4 17.8 18.4 12.6 7.9 12.7 10.2 24.8

Use a Second Refrigerator.......................... 24.6 2.4 4.9 4.5 3.8 9.0 1.5 4.5

Age of Second Refrigerator

Less than 2 Years.................................. 2.3 Q 0.5 0.4 0.4 0.8 Q 0.4

2 to 4 Years............................................ 3.8 0.4 0.7 0.7 0.7 1.4 0.3 0.9

5 to 9 Years............................................ 5.3 0.5 1.1 0.9 0.6 2.2 0.4 1.1

10 to 19 Years........................................ 8.6 0.8 1.4 1.6 1.3 3.4 0.4 1.4

20 Years or More.................................... 4.1 0.4 1.2 0.8 0.7 1.0 Q 0.6

Don't Know............................................. 0.5 Q Q Q Q QQ Q

Do Not Use a Second Refrigerator............. 86.3 24.3 23.8 16.1 9.2 13.0 15.1 33.9

Number of Months Turned on Each Year

1 to 3 Months.......................................... 1.9 0.4 0.4 Q 0.3 0.7 0.3 0.7

4 to 6 Months.......................................... 0.9 Q Q Q Q 0.3 Q Q

7 to 11 Months........................................ 0.5 Q Q Q Q QQ Q

On all the Time....................................... 21.2 1.8 4.4 3.9 3.3 7.9 1.0 3.6

Energy Information Administration

2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables
Less than 

$20,000

$20,000 to 

Home Appliances Usage Indicators $39,999

Table HC7.10 Home Appliances Usage Indicators by Household Income, 2005

Below 

Poverty 

Line

Eligible for 

Federal 

Assistance $40,000 to 1

$59,999

$60,000 to 

$79,999

$80,000 or 

More

 Million U.S. Housing Units

2005 Household Income

Housing 

Units 

(millions)

Dishwasher

Use a Dishwasher.......................................... 64.7 7.3 14.8 13.7 10.0 18.9 4.2 12.8

At Least Once Each Day............................ 11.3 0.7 2.5 2.1 1.6 4.4 0.6 2.4

4 to 6 Times a Week.................................. 11.7 0.7 1.7 2.6 2.3 4.4 0.5 1.6

2 to 3 Times a Week.................................. 21.8 2.0 5.5 4.4 3.0 6.8 1.1 3.4

Once each Week....................................... 9.0 1.3 2.1 2.2 1.6 1.8 0.6 1.8

Less than Once Each Week....................... 10.9 2.5 3.0 2.5 1.5 1.5 1.4 3.6

Do Not Use a Dishwasher.............................. 46.4 19.5 13.9 6.8 3.1 3.1 12.5 25.8

Energy Star Dishwasher1

Yes............................................................ 16.4 0.9 3.6 3.3 2.6 5.9 0.7 2.6

No.............................................................. 6.6 0.8 1.5 1.7 0.9 1.6 0.5 1.4

Don't Know................................................. 3.1 0.4 0.7 0.4 0.5 1.0 0.3 0.7

Unit is More Than 4 Years Old................... 85.0 24.6 22.9 15.1 9.0 13.4 15.2 33.9

Clothes Washers and Dryers

Clothes Washer

Use a Clothes Washer in the Home........... 91.8 17.2 23.1 18.4 12.1 21.0 10.3 26.7

1 Load Each Week................................. 7.3 2.8 2.4 0.9 0.6 0.6 1.2 3.1

2 to 5 Loads Each Week........................ 39.0 9.1 10.4 8.3 4.5 6.7 5.1 12.5

6 to 9 Loads Each Week........................ 33.8 4.0 7.6 6.9 5.4 10.0 2.6 7.7

10 to 15 Loads Each Week.................... 9.3 0.9 2.1 1.8 1.3 3.1 1.0 2.4

More than 15 Loads Each Week............ 2.4 0.4 0.5 0.6 0.3 0.5 0.5 1.0

Do Not Use a Clothes Washer in the Home 19.3 9.5 5.7 2.1 1.0 1.0 6.3 11.9

Usual Water Temperature Setting

Wash Cycle

Hot......................................................... 6.7 1.8 1.7 1.4 1.0 0.9 0.9 2.5

Warm..................................................... 50.5 9.0 12.5 10.0 6.7 12.3 5.1 13.7

Cold........................................................ 34.6 6.4 8.9 7.1 4.4 7.8 4.3 10.5

Rinse Cycle

Hot......................................................... 1.6 0.5 0.3 0.5 Q Q 0.3 0.6

Warm..................................................... 18.2 3.5 5.2 3.6 2.4 3.5 2.0 5.7

Cold........................................................ 72.0 13.3 17.5 14.4 9.5 17.3 8.0 20.4

Energy Star Clothes Washer1

Yes............................................................ 21.7 2.5 5.0 4.5 3.2 6.5 1.8 4.9

No.............................................................. 10.4 2.1 3.0 2.4 1.4 1.7 1.4 3.6

Don't Know................................................. 4.5 0.8 1.1 0.9 0.7 1.1 0.6 1.2

Unit is More Than 4 Years Old................... 55.1 11.9 13.9 10.7 6.8 11.7 6.6 17.0

Loads of Clothes Dried

Use a Clothes Dryer in the Home............... 87.5 15.1 21.8 17.8 11.9 20.9 8.9 23.8

Every Time Clothes are Washed............ 72.4 12.1 17.8 14.7 10.0 18.0 6.8 19.2

Some, but Not All, Loads........................ 12.4 2.3 3.2 2.7 1.6 2.6 1.5 3.6

Used Infrequently................................... 2.7 0.7 0.8 0.4 0.3 0.4 0.5 1.0

Do Not Use a Clothes Dryer in the Home... 23.6 11.7 7.0 2.7 1.1 1.0 7.8 14.8

Energy Information Administration

2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables
Less than 

$20,000

$20,000 to 

Home Appliances Usage Indicators $39,999

Table HC7.10 Home Appliances Usage Indicators by Household Income, 2005

Below 

Poverty 

Line

Eligible for 

Federal 

Assistance $40,000 to 1

$59,999

$60,000 to 

$79,999

$80,000 or 

More

 Million U.S. Housing Units

2005 Household Income

Housing 

Units 

(millions)

Other Appliances

Ceiling Fans

1................................................................. 21.7 6.7 5.8 3.9 2.1 3.1 4.1 8.8

2................................................................. 17.4 3.5 4.8 3.7 1.8 3.6 2.0 5.5

3................................................................. 12.3 2.1 3.3 2.7 2.0 2.2 1.4 3.5

4 or More.................................................... 25.8 2.8 5.8 5.5 3.8 7.9 1.4 5.1

Use of Most-Used Ceiling Fan

Used All Summer................................... 18.7 4.2 4.9 4.1 2.1 3.4 2.4 6.3

Used Quite a Bit..................................... 16.2 3.4 3.8 3.3 2.3 3.4 2.0 4.9

Used Only a Few Days or Nights............ 39.3 6.6 10.3 8.0 4.9 9.5 4.0 10.6

Not Used at All....................................... 2.9 0.9 0.7 0.5 0.3 0.6 0.5 1.1

Battery-Operated Appliances/Tools

Use Battery-Operated Appliances/Tools.... 54.9 6.5 12.7 11.9 8.0 15.8 3.8 11.8

Plugged in All the Time........................... 10.0 1.0 2.1 2.1 1.6 3.3 0.5 1.8

Recharged as Needed............................ 41.6 5.1 9.8 9.3 6.0 11.3 3.2 9.4

Both Ways Are Used.............................. 3.3 0.4 0.8 0.5 0.4 1.2 Q 0.5

Do Not Use Battery-Operated Appliances/T 56.2 20.3 16.0 8.6 5.1 6.2 12.8 26.8

Other Appliances Used

Auto Block/Engine/Battery Heater.................. 0.8 Q 0.2 Q Q 0.3 Q Q

Hot Tub or Spa.............................................. 6.7 Q 0.8 1.3 1.1 3.4 Q 0.5

Swimming Pool with Filters............................ 8.3 0.3 1.2 1.3 1.5 4.1 Q 1.0

Water Bed..................................................... 2.2 0.5 0.3 0.4 0.4 0.5 0.2 0.6

 1. The question of whether the appliance was an Energy Star appliance was asked only of those housing units having a appliance that was less 

than 4 years old.

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

 N = No cases in reporting sample.

 Notes: ● Because of rounding, data may not sum to totals. ● See Glossary for definition of terms used in these tables.

 Source: Energy Information Administration, Office of Energy Markets and End Use, Forms EIA-457 A, B, C of the 2005 

Residential Energy Consumption Survey.

Energy Information Administration

2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables
Total.................................................................................... 111.1 47.1 19.0 22.7 22.3

Cooking Appliances

Frequency of Hot Meals Cooked

3 or More Times A Day................................................. 8.2 3.7 1.6 1.4 1.5

2 Times A Day.............................................................. 24.6 10.8 4.1 4.3 5.5

Once a Day................................................................... 42.3 17.0 7.2 8.7 9.3

A Few Times Each Week............................................. 27.2 11.4 4.7 6.4 4.8

About Once a Week..................................................... 3.9 1.7 0.6 0.9 0.8

Less Than Once a Week.............................................. 4.1 2.2 0.6 0.8 0.5

No Hot Meals Cooked................................................... 0.9 0.4 Q Q Q

Coventional Oven

Use an Oven................................................................. 109.6 46.2 18.8 22.5 22.1

More Than Once a Day............................................. 8.9 3.7 1.3 1.9 1.9

Once a Day............................................................... 19.2 7.3 3.4 3.9 4.6

Between Once a Day and Once a Week................... 32.0 12.8 5.3 7.3 6.6

Once a Week............................................................ 19.1 7.7 3.5 3.8 4.2

Less than Once a Week............................................ 30.3 14.7 5.2 5.6 4.9

Do Not Use an Oven..................................................... 1.5 1.0 Q 0.2 Q

Microwave Oven

Use a Microwave Oven................................................. 97.7 40.3 17.2 20.5 19.7

Most or all Food Cooked........................................... 8.3 3.9 1.2 1.9 1.3

About Half of All Food Cooked.................................. 17.3 6.9 3.4 3.7 3.2

Some or Very Little Food Cooked............................. 21.9 8.8 3.1 5.4 4.6

For Defrosting, Reheating, or Snacks........................ 50.2 20.6 9.5 9.5 10.6

Do Not Use a Microwave Oven..................................... 13.4 6.9 1.8 2.1 2.6

Electric Coffee Maker

Use an Electric Coffee Maker....................................... 67.2 24.8 12.0 14.5 15.9

3 or More Times a Day.............................................. 2.5 0.7 0.6 0.4 0.8

2 Times a Day........................................................... 5.4 1.8 1.0 1.2 1.3

Once a Day............................................................... 36.9 12.8 6.9 8.3 9.0

A Few Times Each Week.......................................... 9.7 4.2 1.5 2.1 1.9

About Once a Week.................................................. 5.0 2.1 0.6 1.1 1.2

Less Than Once a Week........................................... 7.6 3.1 1.3 1.5 1.7

Do Not Use an Electric Coffee Maker........................... 43.9 22.3 7.0 8.1 6.5

Time Coffee Maker is Left On

Turned off Right Away............................................... 21.6 9.4 3.8 4.2 4.3

Less than 15 Minutes................................................ 11.2 4.1 2.1 2.5 2.4

15 Minutes to 1 Hour................................................. 21.1 6.9 3.5 4.9 5.8

More Than 1 Hour..................................................... 13.2 4.4 2.5 3.0 3.4

Table HC8.10 Home Appliances Usage Indicators by Urban/Rural Location, 2005

 Million U.S. Housing Units

Urban/Rural Location

Housing (as Self-Reported)

Units 

Home Appliances Usage Indicators City Town Surburbs Rural (millions)

Energy Information Administration

2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables
Table HC8.10 Home Appliances Usage Indicators by Urban/Rural Location, 2005

 Million U.S. Housing Units

Urban/Rural Location

Housing (as Self-Reported)

Units 

Home Appliances Usage Indicators City Town Surburbs Rural (millions)

Electric Toaster Oven

Use an Electric Toaster Oven....................................... 37.3 15.5 6.6 8.6 6.6

3 or More Times a Day.............................................. 0.9 Q 0.4 Q Q

2 Times a Day........................................................... 3.2 1.5 0.5 0.7 0.5

Once a Day............................................................... 9.0 3.6 1.6 1.8 1.9

A Few Times Each Week.......................................... 11.6 5.2 1.8 2.8 1.8

About Once a Week.................................................. 4.4 1.9 0.7 1.2 0.6

Less Than Once a Week........................................... 8.1 3.0 1.5 1.9 1.6

Do Not Use an Electric Toaster Oven........................... 73.8 31.7 12.3 14.0 15.8

Electric Toaster Oven Function

Used Only as a Toaster............................................. 22.0 9.4 4.0 4.8 3.8

Used Only as an Oven.............................................. 5.7 2.2 1.1 1.3 1.0

Used Both as a Toaster and an Oven....................... 9.6 3.8 1.5 2.5 1.8

Refrigerators

Most-Used RefrIgerator

Age of Most-Used Refrigerator

Less than 2 Years..................................................... 19.0 8.5 2.8 4.4 3.4

2 to 4 Years............................................................... 22.7 9.9 4.0 4.4 4.3

5 to 9 Years............................................................... 30.9 11.9 5.2 6.7 7.1

10 to 19 Years........................................................... 25.7 10.8 4.6 4.9 5.3

20 Years or More...................................................... 6.1 2.5 1.0 1.2 1.5

Don't Know................................................................ 6.7 3.5 1.4 1.0 0.8

Energy Star (Most-Used) Refrigerator1

Yes........................................................................... 23.9 9.8 3.9 5.3 4.8

No............................................................................. 12.9 6.2 2.1 2.6 2.0

Don't Know................................................................ 4.9 2.4 0.8 0.9 0.9

Unit is More Than 4 Years Old.................................. 69.4 28.7 12.2 13.9 14.7

Use a Second Refrigerator............................................. 24.6 7.8 4.3 6.5 6.0

Age of Second Refrigerator

Less than 2 Years..................................................... 2.3 0.8 0.4 0.6 0.4

2 to 4 Years............................................................... 3.8 1.3 0.6 1.1 0.8

5 to 9 Years............................................................... 5.3 1.8 0.9 1.3 1.3

10 to 19 Years........................................................... 8.6 2.6 1.4 2.6 2.0

20 Years or More...................................................... 4.1 1.0 0.8 0.9 1.4

Don't Know................................................................ 0.5 0.2 Q Q Q

Do Not Use a Second Refrigerator................................ 86.3 39.3 14.6 16.2 16.2

Number of Months Turned on Each Year

1 to 3 Months............................................................ 1.9 0.6 0.5 0.4 0.3

4 to 6 Months............................................................ 0.9 0.3 Q Q Q

7 to 11 Months.......................................................... 0.5 QQQQ

On all the Time.......................................................... 21.2 6.7 3.5 5.8 5.2

Energy Information Administration

2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables
Table HC8.10 Home Appliances Usage Indicators by Urban/Rural Location, 2005

 Million U.S. Housing Units

Urban/Rural Location

Housing (as Self-Reported)

Units 

Home Appliances Usage Indicators City Town Surburbs Rural (millions)

Dishwasher

Use a Dishwasher............................................................ 64.7 23.7 10.7 17.2 13.2

At Least Once Each Day............................................... 11.3 3.4 2.0 3.0 2.9

4 to 6 Times a Week..................................................... 11.7 3.5 1.9 3.8 2.6

2 to 3 Times a Week..................................................... 21.8 7.3 3.7 6.1 4.6

Once each Week.......................................................... 9.0 4.0 1.6 1.8 1.6

Less than Once Each Week......................................... 10.9 5.4 1.6 2.5 1.4

Do Not Use a Dishwasher................................................ 46.4 23.4 8.3 5.5 9.2

Energy Star Dishwasher1

Yes............................................................................... 16.4 5.4 2.5 4.9 3.6

No................................................................................. 6.6 2.4 1.1 1.8 1.2

Don't Know................................................................... 3.1 1.1 0.4 0.9 0.7

Unit is More Than 4 Years Old...................................... 85.0 38.1 15.0 15.0 16.8

Clothes Washers and Dryers

Clothes Washer

Use a Clothes Washer in the Home.............................. 91.8 35.2 15.7 20.1 20.8

1 Load Each Week.................................................... 7.3 3.7 1.3 1.1 1.2

2 to 5 Loads Each Week........................................... 39.0 16.4 6.8 8.2 7.7

6 to 9 Loads Each Week........................................... 33.8 11.2 5.4 8.4 8.7

10 to 15 Loads Each Week....................................... 9.3 3.0 1.8 1.9 2.6

More than 15 Loads Each Week............................... 2.4 1.0 0.4 0.4 0.6

Do Not Use a Clothes Washer in the Home.................. 19.3 11.9 3.3 2.6 1.6

Usual Water Temperature Setting

Wash Cycle

Hot............................................................................ 6.7 2.6 1.3 1.3 1.5

Warm........................................................................ 50.5 19.3 8.3 11.6 11.3

Cold.......................................................................... 34.6 13.3 6.1 7.2 8.0

Rinse Cycle

Hot............................................................................ 1.6 0.7 0.3 0.3 0.3

Warm........................................................................ 18.2 7.9 3.3 3.6 3.4

Cold.......................................................................... 72.0 26.7 12.1 16.2 17.1

Energy Star Clothes Washer1

Yes............................................................................... 21.7 7.9 3.7 5.3 4.8

No................................................................................. 10.4 4.8 1.3 2.1 2.2

Don't Know................................................................... 4.5 1.9 0.9 0.8 1.0

Unit is More Than 4 Years Old...................................... 55.1 20.6 9.8 11.9 12.7

Loads of Clothes Dried

Use a Clothes Dryer in the Home................................. 87.5 33.0 15.0 19.7 19.8

Every Time Clothes are Washed............................... 72.4 27.5 12.4 16.8 15.8

Some, but Not All, Loads.......................................... 12.4 4.5 2.1 2.4 3.4

Used Infrequently...................................................... 2.7 1.1 0.5 0.5 0.6

Do Not Use a Clothes Dryer in the Home...................... 23.6 14.1 4.0 3.0 2.5

Energy Information Administration

2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables
Table HC8.10 Home Appliances Usage Indicators by Urban/Rural Location, 2005

 Million U.S. Housing Units

Urban/Rural Location

Housing (as Self-Reported)

Units 

Home Appliances Usage Indicators City Town Surburbs Rural (millions)

Other Appliances

Ceiling Fans

1................................................................................... 21.7 9.5 3.3 4.3 4.6

2................................................................................... 17.4 6.6 2.5 3.7 4.5

3................................................................................... 12.3 5.0 2.1 2.6 2.6

4 or More...................................................................... 25.8 8.6 4.7 6.7 5.8

Use of Most-Used Ceiling Fan

Used All Summer...................................................... 18.7 7.1 3.2 4.3 4.1

Used Quite a Bit........................................................ 16.2 6.3 2.8 3.4 3.7

Used Only a Few Days or Nights............................... 39.3 14.9 6.3 9.1 9.0

Not Used at All.......................................................... 2.9 1.4 0.4 0.4 0.7

Battery-Operated Appliances/Tools

Use Battery-Operated Appliances/Tools....................... 54.9 19.9 8.4 13.4 13.2

Plugged in All the Time............................................. 10.0 3.9 1.6 2.7 1.8

Recharged as Needed.............................................. 41.6 15.2 6.3 9.8 10.3

Both Ways Are Used................................................. 3.3 0.8 0.4 0.9 1.1

Do Not Use Battery-Operated Appliances/Tools........... 56.2 27.2 10.6 9.3 9.2

Other Appliances Used

Auto Block/Engine/Battery Heater.................................... 0.8 Q Q Q 0.4

Hot Tub or Spa................................................................. 6.7 1.7 1.2 2.2 1.6

Swimming Pool with Filters............................................... 8.3 2.5 1.1 2.7 2.0

Water Bed........................................................................ 2.2 0.6 0.4 0.5 0.7

 1. The question of whether the appliance was an Energy Star appliance was asked only of those housing units having a appliance that 

was less than 4 years old.

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

sampled.

 N = No cases in reporting sample.

 Notes: ● Because of rounding, data may not sum to totals. ● See Glossary for definition of terms used in these tables.

 Source: Energy Information Administration, Office of Energy Markets and End Use, Forms EIA-457 A, B, C of the 2005 

Residential Energy Consumption Survey.

Energy Information Administration

2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables
 Million U.S. Housing Units

Total............................................................................ 111.1 10.9 26.1 27.3 24.0 22.8

Cooking Appliances

Frequency of Hot Meals Cooked

3 or More Times A Day......................................... 8.2 0.4 1.7 2.1 2.2 1.7

2 Times A Day...................................................... 24.6 2.3 6.0 5.9 5.5 5.0

Once a Day........................................................... 42.3 5.6 10.3 9.7 8.1 8.7

A Few Times Each Week..................................... 27.2 2.1 6.1 7.2 6.0 5.7

About Once a Week.............................................. 3.9 0.3 0.7 1.0 1.1 0.8

Less Than Once a Week...................................... 4.1 Q 0.9 1.1 1.0 0.8

No Hot Meals Cooked........................................... 0.9 Q 0.4 Q Q Q

Coventional Oven

Use an Oven......................................................... 109.6 10.9 25.7 27.1 23.4 22.4

More Than Once a Day..................................... 8.9 0.6 1.9 2.1 2.6 1.7

Once a Day....................................................... 19.2 2.0 4.9 4.4 4.3 3.7

Between Once a Day and Once a Week........... 32.0 3.9 8.4 7.6 5.7 6.4

Once a Week.................................................... 19.1 2.2 4.2 5.0 3.8 3.9

Less than Once a Week.................................... 30.3 2.2 6.4 8.0 7.0 6.8

Do Not Use an Oven............................................. 1.5 Q 0.3 Q 0.6 0.4

Microwave Oven

Use a Microwave Oven......................................... 97.7 10.3 22.9 24.1 20.8 19.6

Most or all Food Cooked................................... 8.3 0.6 2.4 1.9 1.6 1.8

About Half of All Food Cooked.......................... 17.3 1.9 4.5 3.9 3.4 3.6

Some or Very Little Food Cooked..................... 21.9 2.5 4.7 4.9 5.2 4.7

For Defrosting, Reheating, or Snacks................ 50.2 5.3 11.3 13.4 10.7 9.6

Do Not Use a Microwave Oven............................. 13.4 0.7 3.2 3.2 3.1 3.2

Electric Coffee Maker

Use an Electric Coffee Maker............................... 67.2 7.2 16.0 16.5 13.3 14.1

3 or More Times a Day...................................... 2.5 0.4 0.6 0.5 0.5 0.5

2 Times a Day................................................... 5.4 0.6 1.5 1.3 1.0 0.9

Once a Day....................................................... 36.9 4.0 8.5 8.8 7.6 8.1

A Few Times Each Week.................................. 9.7 1.2 2.2 2.5 1.7 2.1

About Once a Week.......................................... 5.0 0.4 1.3 1.6 0.9 0.8

Less Than Once a Week................................... 7.6 0.5 1.9 1.8 1.6 1.7

Do Not Use an Electric Coffee Maker................... 43.9 3.7 10.1 10.8 10.6 8.7

Time Coffee Maker is Left On

Turned off Right Away....................................... 21.6 2.1 5.0 5.4 4.2 5.0

Less than 15 Minutes........................................ 11.2 1.1 2.8 3.1 1.8 2.4

15 Minutes to 1 Hour......................................... 21.1 2.8 4.7 5.1 4.4 4.2

More Than 1 Hour............................................. 13.2 1.3 3.5 3.0 3.0 2.5

Table HC9.10 Home Appliances Usage Indicators by Climate Zone, 2005

Housing 

Units 

(millions)

Greater 

than 7,000 

HDD

5,500 to 

7,000 HDD

4,000 to 

5,499 HDD

Less than 

4,000 HDD

Climate Zone1

Home Appliances Characteristics

Less than 2,000 CDD and -- 2,000 CDD 

or More

and Less 

than 4,000 

HDD

Energy Information Administration

2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables
 Million U.S. Housing Units

Table HC9.10 Home Appliances Usage Indicators by Climate Zone, 2005

Housing 

Units 

(millions)

Greater 

than 7,000 

HDD

5,500 to 

7,000 HDD

4,000 to 

5,499 HDD

Less than 

4,000 HDD

Climate Zone1

Home Appliances Characteristics

Less than 2,000 CDD and -- 2,000 CDD 

or More

and Less 

than 4,000 

HDD

Electric Toaster Oven

Use an Electric Toaster Oven............................... 37.3 2.3 8.7 9.6 8.8 7.9

3 or More Times a Day...................................... 0.9 Q 0.3 0.3 Q Q

2 Times a Day................................................... 3.2 0.4 0.7 0.7 0.7 0.7

Once a Day....................................................... 9.0 0.5 2.2 2.3 2.1 1.9

A Few Times Each Week.................................. 11.6 0.6 2.6 3.2 2.8 2.5

About Once a Week.......................................... 4.4 0.2 1.0 1.2 1.0 1.0

Less Than Once a Week................................... 8.1 0.6 1.9 2.0 2.1 1.6

Do Not Use an Electric Toaster Oven................... 73.8 8.6 17.4 17.7 15.2 14.9

Electric Toaster Oven Function

Used Only as a Toaster..................................... 22.0 1.3 4.7 5.6 5.7 4.7

Used Only as an Oven...................................... 5.7 0.4 1.4 1.5 1.1 1.4

Used Both as a Toaster and an Oven............... 9.6 0.6 2.6 2.5 2.0 1.8

Refrigerators

Most-Used RefrIgerator

Age of Most-Used Refrigerator

Less than 2 Years............................................. 19.0 1.4 4.3 4.5 5.0 3.8

2 to 4 Years....................................................... 22.7 2.2 4.8 5.4 4.8 5.6

5 to 9 Years....................................................... 30.9 3.3 6.8 7.3 7.2 6.2

10 to 19 Years................................................... 25.7 2.7 6.5 6.8 5.1 4.6

20 Years or More.............................................. 6.1 0.8 1.7 1.6 0.9 1.2

Don't Know........................................................ 6.7 0.5 2.0 1.8 1.0 1.4

Energy Star (Most-Used) Refrigerator2

Yes.................................................................... 23.9 2.3 5.6 5.7 6.2 4.2

No..................................................................... 12.9 0.8 2.6 3.0 2.9 3.6

Don't Know........................................................ 4.9 0.6 0.9 1.2 0.6 1.6

Unit is More Than 4 Years Old.......................... 69.4 7.3 17.0 17.5 14.2 13.4

Use a Second Refrigerator..................................... 24.6 3.3 5.9 6.5 4.8 4.2

Age of Second Refrigerator

Less than 2 Years............................................. 2.3 0.3 0.4 0.6 0.5 0.4

2 to 4 Years....................................................... 3.8 0.4 0.8 1.1 0.8 0.8

5 to 9 Years....................................................... 5.3 0.7 1.1 1.4 1.2 0.9

10 to 19 Years................................................... 8.6 1.1 2.2 2.3 1.7 1.3

20 Years or More.............................................. 4.1 0.8 1.3 0.8 0.6 0.6

Don't Know........................................................ 0.5 QQQQQ

Do Not Use a Second Refrigerator........................ 86.3 7.7 20.1 20.8 19.2 18.6

Number of Months Turned on Each Year

1 to 3 Months.................................................... 1.9 0.3 0.3 0.6 0.4 0.4

4 to 6 Months.................................................... 0.9 Q 0.4 Q Q Q

7 to 11 Months.................................................. 0.5 QQQQQ

On all the Time.................................................. 21.2 2.7 5.1 5.5 4.2 3.7

Energy Information Administration

2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables
 Million U.S. Housing Units

Table HC9.10 Home Appliances Usage Indicators by Climate Zone, 2005

Housing 

Units 

(millions)

Greater 

than 7,000 

HDD

5,500 to 

7,000 HDD

4,000 to 

5,499 HDD

Less than 

4,000 HDD

Climate Zone1

Home Appliances Characteristics

Less than 2,000 CDD and -- 2,000 CDD 

or More

and Less 

than 4,000 

HDD

Dishwasher

Use a Dishwasher.................................................... 64.7 6.7 14.8 15.2 14.1 13.8

At Least Once Each Day....................................... 11.3 1.5 2.3 2.8 2.4 2.3

4 to 6 Times a Week............................................. 11.7 1.6 2.7 3.0 2.3 2.1

2 to 3 Times a Week............................................. 21.8 2.4 5.5 5.0 4.5 4.4

Once each Week.................................................. 9.0 0.7 2.0 2.0 2.4 1.9

Less than Once Each Week................................. 10.9 0.6 2.4 2.4 2.6 3.0

Do Not Use a Dishwasher........................................ 46.4 4.2 11.2 12.1 9.9 9.0

Energy Star Dishwasher2

Yes....................................................................... 16.4 1.8 4.0 3.3 3.4 3.8

No......................................................................... 6.6 0.5 1.3 1.2 1.6 1.9

Don't Know........................................................... 3.1 0.5 0.7 0.9 0.3 0.7

Unit is More Than 4 Years Old.............................. 85.0 8.1 20.0 21.9 18.6 16.3

Clothes Washers and Dryers

Clothes Washer

Use a Clothes Washer in the Home...................... 91.8 9.8 20.9 21.6 20.0 19.5

1 Load Each Week............................................ 7.3 0.6 1.5 1.8 1.7 1.7

2 to 5 Loads Each Week................................... 39.0 4.3 8.9 8.8 8.3 8.8

6 to 9 Loads Each Week................................... 33.8 3.6 7.7 8.6 7.4 6.6

10 to 15 Loads Each Week............................... 9.3 1.0 2.2 1.9 2.2 1.9

More than 15 Loads Each Week....................... 2.4 0.4 0.5 0.5 0.5 0.5

Do Not Use a Clothes Washer in the Home.......... 19.3 1.1 5.2 5.7 3.9 3.3

Usual Water Temperature Setting

Wash Cycle

Hot.................................................................... 6.7 0.4 1.3 2.0 1.6 1.3

Warm................................................................ 50.5 6.1 12.8 12.4 10.1 9.1

Cold.................................................................. 34.6 3.3 6.7 7.2 8.3 9.0

Rinse Cycle

Hot.................................................................... 1.6 Q 0.3 0.4 0.3 0.5

Warm................................................................ 18.2 1.9 4.1 4.7 3.8 3.7

Cold.................................................................. 72.0 7.8 16.5 16.5 15.9 15.3

Energy Star Clothes Washer2

Yes....................................................................... 21.7 2.2 5.1 5.0 5.2 4.2

No......................................................................... 10.4 0.9 1.7 2.4 2.6 2.8

Don't Know........................................................... 4.5 0.5 0.9 0.9 0.9 1.3

Unit is More Than 4 Years Old.............................. 55.1 6.2 13.2 13.3 11.3 11.1

Loads of Clothes Dried

Use a Clothes Dryer in the Home.......................... 87.5 9.6 20.3 20.0 19.3 18.2

Every Time Clothes are Washed....................... 72.4 6.7 16.8 17.0 15.9 16.1

Some, but Not All, Loads.................................. 12.4 2.5 3.0 2.6 2.8 1.6

Used Infrequently.............................................. 2.7 0.4 0.6 0.4 0.7 0.5

Do Not Use a Clothes Dryer in the Home.............. 23.6 1.3 5.7 7.3 4.6 4.6

Energy Information Administration

2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables
 Million U.S. Housing Units

Table HC9.10 Home Appliances Usage Indicators by Climate Zone, 2005

Housing 

Units 

(millions)

Greater 

than 7,000 

HDD

5,500 to 

7,000 HDD

4,000 to 

5,499 HDD

Less than 

4,000 HDD

Climate Zone1

Home Appliances Characteristics

Less than 2,000 CDD and -- 2,000 CDD 

or More

and Less 

than 4,000 

HDD

Other Appliances

Ceiling Fans

1........................................................................... 21.7 2.8 5.5 5.3 4.9 3.2

2........................................................................... 17.4 1.9 3.9 4.5 3.8 3.3

3........................................................................... 12.3 1.3 2.7 2.9 2.2 3.2

4 or More.............................................................. 25.8 1.4 5.0 4.8 5.7 8.9

Use of Most-Used Ceiling Fan

Used All Summer.............................................. 18.7 2.3 4.6 4.9 4.3 2.6

Used Quite a Bit................................................ 16.2 2.0 4.1 3.3 3.4 3.4

Used Only a Few Days or Nights....................... 39.3 2.7 7.6 8.7 8.4 11.9

Not Used at All.................................................. 2.9 0.4 0.8 0.6 0.6 0.6

Battery-Operated Appliances/Tools

Use Battery-Operated Appliances/Tools............... 54.9 6.3 12.3 13.4 11.9 11.0

Plugged in All the Time..................................... 10.0 0.7 2.1 2.7 2.2 2.4

Recharged as Needed...................................... 41.6 5.2 9.4 9.9 9.2 8.0

Both Ways Are Used......................................... 3.3 0.5 0.8 0.8 0.6 0.7

Do Not Use Battery-Operated Appliances/Tools... 56.2 4.6 13.8 13.9 12.1 11.8

Other Appliances Used

Auto Block/Engine/Battery Heater............................ 0.8 0.5 0.2 N N N

Hot Tub or Spa......................................................... 6.7 0.9 1.2 1.4 1.6 1.6

Swimming Pool with Filters....................................... 8.3 0.5 1.5 1.5 2.2 2.7

Water Bed................................................................ 2.2 0.3 0.7 0.5 Q 0.5

 1. One of five climatically distinct areas, determined according to the 30-year average (1971-2000) of the annual heating and 

cooling degree-days. A household is assigned to a climate zone according to the 30-year average annual degree-days for an 

appropriate nearby weather station.

 2. The question of whether the appliance was an Energy Star appliance was asked only of those housing units having a appliance 

that was less than 4 years old.

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

sampled.

 N = No cases in reporting sample.

 Notes: ● Because of rounding, data may not sum to totals. ● See Glossary for definition of terms used in these tables.

 Source: Energy Information Administration, Office of Energy Markets and End Use, Forms EIA-457 A, B, C of the 2005 

Residential Energy Consumption Survey.

Energy Information Administration

2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables
Total.................................................................................... 111.1 20.6 25.6 40.7 24.2

Cooking Appliances

Frequency of Hot Meals Cooked

3 or More Times A Day................................................. 8.2 1.2 1.4 3.0 2.6

2 Times A Day.............................................................. 24.6 4.0 5.8 8.3 6.6

Once a Day................................................................... 42.3 7.9 10.7 15.0 8.8

A Few Times Each Week............................................. 27.2 6.0 5.6 10.9 4.7

About Once a Week..................................................... 3.9 0.6 0.9 1.6 0.7

Less Than Once a Week.............................................. 4.1 0.6 1.1 1.7 0.7

No Hot Meals Cooked................................................... 0.9 0.3 Q Q 0.2

Coventional Oven

Use an Oven................................................................. 109.6 20.3 25.3 40.2 23.7

More Than Once a Day............................................. 8.9 1.4 1.3 4.4 1.7

Once a Day............................................................... 19.2 3.7 4.6 7.7 3.2

Between Once a Day and Once a Week................... 32.0 5.6 8.9 11.4 6.1

Once a Week............................................................ 19.1 4.0 4.3 6.7 4.2

Less than Once a Week............................................ 30.3 5.7 6.2 10.1 8.3

Do Not Use an Oven..................................................... 1.5 0.2 0.3 0.5 0.5

Microwave Oven

Use a Microwave Oven................................................. 97.7 17.6 23.2 35.2 21.7

Most or all Food Cooked........................................... 8.3 1.4 2.0 2.8 2.0

About Half of All Food Cooked.................................. 17.3 2.0 5.2 5.5 4.6

Some or Very Little Food Cooked............................. 21.9 3.1 5.1 8.4 5.3

For Defrosting, Reheating, or Snacks........................ 50.2 11.2 10.8 18.4 9.9

Do Not Use a Microwave Oven..................................... 13.4 3.0 2.4 5.5 2.5

Electric Coffee Maker

Use an Electric Coffee Maker....................................... 67.2 12.0 16.2 25.2 13.7

3 or More Times a Day.............................................. 2.5 0.4 0.6 1.0 0.5

2 Times a Day........................................................... 5.4 1.3 1.3 1.8 1.0

Once a Day............................................................... 36.9 6.6 8.2 14.4 7.8

A Few Times Each Week.......................................... 9.7 1.4 2.9 3.5 1.8

About Once a Week.................................................. 5.0 1.1 1.3 1.4 1.1

Less Than Once a Week........................................... 7.6 1.3 1.8 3.1 1.5

Do Not Use an Electric Coffee Maker........................... 43.9 8.6 9.4 15.5 10.5

Time Coffee Maker is Left On

Turned off Right Away............................................... 21.6 4.6 4.5 8.4 4.1

Less than 15 Minutes................................................ 11.2 2.4 2.6 3.9 2.3

15 Minutes to 1 Hour................................................. 21.1 3.3 5.7 8.0 4.2

More Than 1 Hour..................................................... 13.2 1.8 3.4 4.9 3.1

Housing

Units 

(millions)

Table HC10.10 Home Appliances Usage Indicators by U.S. Census Regions, 2005

 Million U.S. Housing Units

U.S. Census Region

Home Appliances Usage Indicators Northeast Midwest South West

Energy Information Administration

2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables
Housing

Units 

(millions)

Table HC10.10 Home Appliances Usage Indicators by U.S. Census Regions, 2005

 Million U.S. Housing Units

U.S. Census Region

Home Appliances Usage Indicators Northeast Midwest South West

Electric Toaster Oven

Use an Electric Toaster Oven....................................... 37.3 9.0 6.5 13.7 8.1

3 or More Times a Day.............................................. 0.9 0.6 Q Q Q

2 Times a Day........................................................... 3.2 0.9 0.4 0.9 1.0

Once a Day............................................................... 9.0 2.3 1.5 3.3 1.9

A Few Times Each Week.......................................... 11.6 2.4 2.1 4.7 2.5

About Once a Week.................................................. 4.4 0.9 0.9 1.5 1.1

Less Than Once a Week........................................... 8.1 1.9 1.6 3.1 1.5

Do Not Use an Electric Toaster Oven........................... 73.8 11.6 19.1 27.0 16.1

Electric Toaster Oven Function

Used Only as a Toaster............................................. 22.0 4.9 3.4 8.4 5.2

Used Only as an Oven.............................................. 5.7 1.3 1.3 2.0 1.1

Used Both as a Toaster and an Oven....................... 9.6 2.7 1.7 3.3 1.8

Refrigerators

Most-Used RefrIgerator

Age of Most-Used Refrigerator

Less than 2 Years..................................................... 19.0 3.1 3.9 6.7 5.2

2 to 4 Years............................................................... 22.7 4.3 4.6 8.9 5.0

5 to 9 Years............................................................... 30.9 5.3 7.4 11.3 6.9

10 to 19 Years........................................................... 25.7 5.3 6.7 9.0 4.7

20 Years or More...................................................... 6.1 1.3 1.5 2.2 1.1

Don't Know................................................................ 6.7 1.3 1.5 2.6 1.3

Energy Star (Most-Used) Refrigerator1

Yes........................................................................... 23.9 4.9 5.0 7.6 6.4

No............................................................................. 12.9 1.9 2.3 6.1 2.5

Don't Know................................................................ 4.9 0.6 1.2 1.9 1.2

Unit is More Than 4 Years Old.................................. 69.4 13.2 17.1 25.1 14.0

Use a Second Refrigerator............................................. 24.6 4.3 7.1 8.0 5.3

Age of Second Refrigerator

Less than 2 Years..................................................... 2.3 0.3 0.7 0.8 0.5

2 to 4 Years............................................................... 3.8 0.6 0.9 1.4 0.9

5 to 9 Years............................................................... 5.3 1.1 1.5 1.6 1.2

10 to 19 Years........................................................... 8.6 1.4 2.5 2.9 1.8

20 Years or More...................................................... 4.1 0.8 1.3 1.1 0.9

Don't Know................................................................ 0.5 QQQQ

Do Not Use a Second Refrigerator................................ 86.3 16.3 18.5 32.7 18.9

Number of Months Turned on Each Year

1 to 3 Months............................................................ 1.9 0.3 0.6 0.6 0.5

4 to 6 Months............................................................ 0.9 0.3 0.3 Q Q

7 to 11 Months.......................................................... 0.5 QQQQ

On all the Time.......................................................... 21.2 3.6 5.9 7.2 4.5

Energy Information Administration

2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables
Housing

Units 

(millions)

Table HC10.10 Home Appliances Usage Indicators by U.S. Census Regions, 2005

 Million U.S. Housing Units

U.S. Census Region

Home Appliances Usage Indicators Northeast Midwest South West

Dishwasher

Use a Dishwasher............................................................ 64.7 10.3 14.7 25.0 14.7

At Least Once Each Day............................................... 11.3 1.8 2.7 4.4 2.4

4 to 6 Times a Week..................................................... 11.7 1.7 2.9 4.5 2.7

2 to 3 Times a Week..................................................... 21.8 4.0 5.2 7.4 5.2

Once each Week.......................................................... 9.0 1.2 1.8 3.7 2.3

Less than Once Each Week......................................... 10.9 1.8 2.1 4.9 2.1

Do Not Use a Dishwasher................................................ 46.4 10.3 10.9 15.7 9.5

Energy Star Dishwasher1

Yes............................................................................... 16.4 2.7 3.6 5.9 4.2

No................................................................................. 6.6 0.7 1.3 3.3 1.3

Don't Know................................................................... 3.1 0.4 0.9 1.2 0.6

Unit is More Than 4 Years Old...................................... 85.0 16.8 19.8 30.3 18.1

Clothes Washers and Dryers

Clothes Washer

Use a Clothes Washer in the Home.............................. 91.8 15.4 22.0 34.8 19.6

1 Load Each Week.................................................... 7.3 1.3 1.6 3.0 1.3

2 to 5 Loads Each Week........................................... 39.0 7.3 8.9 14.5 8.3

6 to 9 Loads Each Week........................................... 33.8 5.3 8.2 12.8 7.5

10 to 15 Loads Each Week....................................... 9.3 1.3 2.4 3.6 1.9

More than 15 Loads Each Week............................... 2.4 0.2 0.9 0.8 0.5

Do Not Use a Clothes Washer in the Home.................. 19.3 5.2 3.6 5.9 4.6

Usual Water Temperature Setting

Wash Cycle

Hot............................................................................ 6.7 1.8 1.3 2.2 1.4

Warm........................................................................ 50.5 8.8 13.7 17.1 10.9

Cold.......................................................................... 34.6 4.8 7.1 15.5 7.3

Rinse Cycle

Hot............................................................................ 1.6 0.4 Q 0.7 0.3

Warm........................................................................ 18.2 3.4 4.3 6.5 4.0

Cold.......................................................................... 72.0 11.6 17.5 27.6 15.3

Energy Star Clothes Washer1

Yes............................................................................... 21.7 4.3 4.4 7.4 5.6

No................................................................................. 10.4 1.4 1.7 5.2 2.1

Don't Know................................................................... 4.5 0.5 1.1 1.8 1.2

Unit is More Than 4 Years Old...................................... 55.1 9.2 14.8 20.4 10.6

Loads of Clothes Dried

Use a Clothes Dryer in the Home................................. 87.5 13.7 21.7 33.2 18.8

Every Time Clothes are Washed............................... 72.4 11.1 17.2 29.0 15.2

Some, but Not All, Loads.......................................... 12.4 2.1 3.9 3.5 2.9

Used Infrequently...................................................... 2.7 0.5 0.6 0.8 0.7

Do Not Use a Clothes Dryer in the Home...................... 23.6 6.8 3.9 7.5 5.4

Energy Information Administration

2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables
Housing

Units 

(millions)

Table HC10.10 Home Appliances Usage Indicators by U.S. Census Regions, 2005

 Million U.S. Housing Units

U.S. Census Region

Home Appliances Usage Indicators Northeast Midwest South West

Other Appliances

Ceiling Fans

1................................................................................... 21.7 3.8 5.3 7.1 5.5

2................................................................................... 17.4 2.8 4.4 6.8 3.3

3................................................................................... 12.3 1.8 3.4 5.3 1.8

4 or More...................................................................... 25.8 2.8 6.1 13.2 3.8

Use of Most-Used Ceiling Fan

Used All Summer...................................................... 18.7 3.5 4.9 6.0 4.4

Used Quite a Bit........................................................ 16.2 3.1 4.1 5.8 3.2

Used Only a Few Days or Nights............................... 39.3 4.2 9.5 19.4 6.1

Not Used at All.......................................................... 2.9 0.4 0.7 1.1 0.8

Battery-Operated Appliances/Tools

Use Battery-Operated Appliances/Tools....................... 54.9 8.4 13.6 20.2 12.6

Plugged in All the Time............................................. 10.0 1.7 2.3 3.9 2.2

Recharged as Needed.............................................. 41.6 6.1 10.4 15.0 10.0

Both Ways Are Used................................................. 3.3 Q 0.8 1.3 0.5

Do Not Use Battery-Operated Appliances/Tools........... 56.2 12.2 12.0 20.5 11.6

Other Appliances Used

Auto Block/Engine/Battery Heater.................................... 0.8 Q 0.4 N 0.2

Hot Tub or Spa................................................................. 6.7 1.0 1.3 2.1 2.2

Swimming Pool with Filters............................................... 8.3 1.6 1.5 3.1 2.2

Water Bed........................................................................ 2.2 0.4 0.7 0.7 0.4

 1. The question of whether the appliance was an Energy Star appliance was asked only of those housing units having a appliance that 

was less than 4 years old.

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

sampled.

 N = No cases in reporting sample.

 Notes: ● Because of rounding, data may not sum to totals. ● See Glossary for definition of terms used in these tables.

 Source: Energy Information Administration, Office of Energy Markets and End Use, Forms EIA-457 A, B, C of the 2005 

Residential Energy Consumption Survey.

Energy Information Administration

2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables
Total............................................................................. 111.1 20.6 15.1 5.5

Cooking Appliances

Frequency of Hot Meals Cooked

3 or More Times A Day......................................... 8.2 1.2 1.0 0.2

2 Times A Day...................................................... 24.6 4.0 2.7 1.2

Once a Day........................................................... 42.3 7.9 5.4 2.5

A Few Times Each Week...................................... 27.2 6.0 4.8 1.2

About Once a Week.............................................. 3.9 0.6 0.5 Q

Less Than Once a Week....................................... 4.1 0.6 0.4 Q

No Hot Meals Cooked........................................... 0.9 0.3 Q Q

Coventional Oven

Use an Oven......................................................... 109.6 20.3 14.9 5.4

More Than Once a Day..................................... 8.9 1.4 1.2 0.3

Once a Day....................................................... 19.2 3.7 2.6 1.1

Between Once a Day and Once a Week........... 32.0 5.6 3.8 1.8

Once a Week.................................................... 19.1 4.0 2.9 1.0

Less than Once a Week.................................... 30.3 5.7 4.5 1.2

Do Not Use an Oven............................................. 1.5 0.2 Q Q

Microwave Oven

Use a Microwave Oven......................................... 97.7 17.6 13.4 4.3

Most or all Food Cooked.................................... 8.3 1.4 1.1 0.3

About Half of All Food Cooked........................... 17.3 2.0 1.4 0.6

Some or Very Little Food Cooked...................... 21.9 3.1 2.2 0.9

For Defrosting, Reheating, or Snacks................ 50.2 11.2 8.7 2.4

Do Not Use a Microwave Oven............................. 13.4 3.0 1.8 1.2

Electric Coffee Maker

Use an Electric Coffee Maker................................ 67.2 12.0 8.6 3.5

3 or More Times a Day...................................... 2.5 0.4 Q 0.1

2 Times a Day................................................... 5.4 1.3 1.0 0.3

Once a Day....................................................... 36.9 6.6 4.7 1.9

A Few Times Each Week.................................. 9.7 1.4 0.9 0.5

About Once a Week.......................................... 5.0 1.1 0.9 0.2

Less Than Once a Week................................... 7.6 1.3 0.9 0.3

Do Not Use an Electric Coffee Maker.................... 43.9 8.6 6.6 2.0

Time Coffee Maker is Left On

Turned off Right Away....................................... 21.6 4.6 3.3 1.3

Less than 15 Minutes........................................ 11.2 2.4 1.8 0.6

15 Minutes to 1 Hour......................................... 21.1 3.3 2.2 1.1

More Than 1 Hour.............................................. 13.2 1.8 1.2 0.5

Table HC11.10 Home Appliances Usage Indicators by Northeast Census Region, 2005

 Million U.S. Housing Units

Home Appliances Usage Indicators Middle Atlantic New England

Northeast Census Region

U.S.

Housing

Units

(millions)

Census Division

Total

Northeast

Energy Information Administration

2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables
Table HC11.10 Home Appliances Usage Indicators by Northeast Census Region, 2005

 Million U.S. Housing Units

Home Appliances Usage Indicators Middle Atlantic New England

Northeast Census Region

U.S.

Housing

Units

(millions)

Census Division

Total

Northeast

Electric Toaster Oven

Use an Electric Toaster Oven................................ 37.3 9.0 6.5 2.4

3 or More Times a Day...................................... 0.9 0.6 0.5 Q

2 Times a Day................................................... 3.2 0.9 0.6 0.3

Once a Day....................................................... 9.0 2.3 1.6 0.7

A Few Times Each Week.................................. 11.6 2.4 1.7 0.7

About Once a Week.......................................... 4.4 0.9 0.7 0.2

Less Than Once a Week................................... 8.1 1.9 1.4 0.5

Do Not Use an Electric Toaster Oven.................... 73.8 11.6 8.6 3.0

Electric Toaster Oven Function

Used Only as a Toaster..................................... 22.0 4.9 3.7 1.3

Used Only as an Oven....................................... 5.7 1.3 0.9 0.4

Used Both as a Toaster and an Oven................ 9.6 2.7 1.9 0.8

Refrigerators

Most-Used RefrIgerator

Age of Most-Used Refrigerator

Less than 2 Years.............................................. 19.0 3.1 2.1 1.0

2 to 4 Years....................................................... 22.7 4.3 3.4 0.9

5 to 9 Years....................................................... 30.9 5.3 4.0 1.3

10 to 19 Years................................................... 25.7 5.3 4.0 1.3

20 Years or More............................................... 6.1 1.3 1.0 0.3

Don't Know........................................................ 6.7 1.3 0.6 0.6

Energy Star (Most-Used) Refrigerator1

Yes.................................................................... 23.9 4.9 3.7 1.2

No...................................................................... 12.9 1.9 1.3 0.6

Don't Know........................................................ 4.9 0.6 0.4 0.1

Unit is More Than 4 Years Old........................... 69.4 13.2 9.6 3.6

Use a Second Refrigerator..................................... 24.6 4.3 3.2 1.1

Age of Second Refrigerator

Less than 2 Years.............................................. 2.3 0.3 Q Q

2 to 4 Years....................................................... 3.8 0.6 0.6 Q

5 to 9 Years....................................................... 5.3 1.1 0.8 0.3

10 to 19 Years................................................... 8.6 1.4 1.1 0.4

20 Years or More............................................... 4.1 0.8 0.5 0.2

Don't Know........................................................ 0.5 Q Q Q

Do Not Use a Second Refrigerator........................ 86.3 16.3 11.9 4.4

Number of Months Turned on Each Year

1 to 3 Months..................................................... 1.9 0.3 Q Q

4 to 6 Months..................................................... 0.9 0.3 Q Q

7 to 11 Months................................................... 0.5 Q Q Q

On all the Time.................................................. 21.2 3.6 2.7 0.9

Energy Information Administration

2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables
Table HC11.10 Home Appliances Usage Indicators by Northeast Census Region, 2005

 Million U.S. Housing Units

Home Appliances Usage Indicators Middle Atlantic New England

Northeast Census Region

U.S.

Housing

Units

(millions)

Census Division

Total

Northeast

Dishwasher

Use a Dishwasher..................................................... 64.7 10.3 7.2 3.1

At Least Once Each Day....................................... 11.3 1.8 1.3 0.5

4 to 6 Times a Week............................................. 11.7 1.7 1.0 0.6

2 to 3 Times a Week............................................. 21.8 4.0 2.7 1.2

Once each Week.................................................. 9.0 1.2 0.7 0.4

Less than Once Each Week.................................. 10.9 1.8 1.5 0.3

Do Not Use a Dishwasher......................................... 46.4 10.3 7.9 2.4

Energy Star Dishwasher1

Yes........................................................................ 16.4 2.7 1.9 0.8

No......................................................................... 6.6 0.7 0.4 0.3

Don't Know............................................................ 3.1 0.4 0.3 Q

Unit is More Than 4 Years Old.............................. 85.0 16.8 12.6 4.2

Clothes Washers and Dryers

Clothes Washer

Use a Clothes Washer in the Home...................... 91.8 15.4 11.2 4.2

1 Load Each Week............................................ 7.3 1.3 0.9 0.3

2 to 5 Loads Each Week................................... 39.0 7.3 5.3 1.9

6 to 9 Loads Each Week................................... 33.8 5.3 3.8 1.5

10 to 15 Loads Each Week............................... 9.3 1.3 0.9 0.4

More than 15 Loads Each Week........................ 2.4 0.2 Q Q

Do Not Use a Clothes Washer in the Home.......... 19.3 5.2 3.9 1.3

Usual Water Temperature Setting

Wash Cycle

Hot..................................................................... 6.7 1.8 1.5 0.3

Warm................................................................ 50.5 8.8 6.6 2.2

Cold................................................................... 34.6 4.8 3.1 1.7

Rinse Cycle

Hot..................................................................... 1.6 0.4 0.3 Q

Warm................................................................ 18.2 3.4 2.6 0.8

Cold................................................................... 72.0 11.6 8.3 3.3

Energy Star Clothes Washer1

Yes........................................................................ 21.7 4.3 3.2 1.1

No......................................................................... 10.4 1.4 1.0 0.4

Don't Know............................................................ 4.5 0.5 0.4 Q

Unit is More Than 4 Years Old.............................. 55.1 9.2 6.6 2.6

Loads of Clothes Dried

Use a Clothes Dryer in the Home.......................... 87.5 13.7 9.8 3.9

Every Time Clothes are Washed....................... 72.4 11.1 8.0 3.1

Some, but Not All, Loads................................... 12.4 2.1 1.4 0.7

Used Infrequently.............................................. 2.7 0.5 0.4 Q

Do Not Use a Clothes Dryer in the Home.............. 23.6 6.8 5.3 1.6

Energy Information Administration

2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables
Table HC11.10 Home Appliances Usage Indicators by Northeast Census Region, 2005

 Million U.S. Housing Units

Home Appliances Usage Indicators Middle Atlantic New England

Northeast Census Region

U.S.

Housing

Units

(millions)

Census Division

Total

Northeast

Other Appliances

Ceiling Fans

1............................................................................ 21.7 3.8 2.6 1.3

2............................................................................ 17.4 2.8 2.1 0.7

3............................................................................ 12.3 1.8 1.3 0.5

4 or More............................................................... 25.8 2.8 2.3 0.5

Use of Most-Used Ceiling Fan

Used All Summer.............................................. 18.7 3.5 2.6 0.9

Used Quite a Bit................................................ 16.2 3.1 2.4 0.7

Used Only a Few Days or Nights....................... 39.3 4.2 3.1 1.1

Not Used at All.................................................. 2.9 0.4 Q 0.2

Battery-Operated Appliances/Tools

Use Battery-Operated Appliances/Tools................ 54.9 8.4 5.8 2.6

Plugged in All the Time...................................... 10.0 1.7 1.4 0.3

Recharged as Needed....................................... 41.6 6.1 4.0 2.1

Both Ways Are Used......................................... 3.3 Q Q 0.2

Do Not Use Battery-Operated Appliances/Tools.... 56.2 12.2 9.4 2.8

Other Appliances Used

Auto Block/Engine/Battery Heater............................. 0.8 Q Q Q

Hot Tub or Spa......................................................... 6.7 1.0 0.8 0.2

Swimming Pool with Filters....................................... 8.3 1.6 1.2 0.4

Water Bed................................................................ 2.2 0.4 Q Q

 1. The question of whether the appliance was an Energy Star appliance was asked only of those housing units having a appliance that 

was less than 4 years old.

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

sampled.

 N = No cases in reporting sample.

 Notes: ● Because of rounding, data may not sum to totals. ● See Glossary for definition of terms used in these tables.

 Source: Energy Information Administration, Office of Energy Markets and End Use, Forms EIA-457 A, B, C of the 2005 

Residential Energy Consumption Survey.

Energy Information Administration

2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables
Total............................................................................. 111.1 25.6 17.7 7.9

Cooking Appliances

Frequency of Hot Meals Cooked

3 or More Times A Day......................................... 8.2 1.4 1.0 0.4

2 Times A Day...................................................... 24.6 5.8 3.5 2.3

Once a Day........................................................... 42.3 10.7 7.8 2.9

A Few Times Each Week...................................... 27.2 5.6 4.0 1.6

About Once a Week.............................................. 3.9 0.9 0.6 0.3

Less Than Once a Week....................................... 4.1 1.1 0.7 0.4

No Hot Meals Cooked........................................... 0.9 Q Q N

Coventional Oven

Use an Oven......................................................... 109.6 25.3 17.6 7.7

More Than Once a Day..................................... 8.9 1.3 0.8 0.5

Once a Day....................................................... 19.2 4.6 3.0 1.6

Between Once a Day and Once a Week........... 32.0 8.9 6.3 2.6

Once a Week.................................................... 19.1 4.3 3.0 1.3

Less than Once a Week.................................... 30.3 6.2 4.5 1.7

Do Not Use an Oven............................................. 1.5 0.3 Q Q

Microwave Oven

Use a Microwave Oven......................................... 97.7 23.2 16.1 7.1

Most or all Food Cooked.................................... 8.3 2.0 1.5 0.5

About Half of All Food Cooked........................... 17.3 5.2 3.4 1.8

Some or Very Little Food Cooked...................... 21.9 5.1 3.3 1.8

For Defrosting, Reheating, or Snacks................ 50.2 10.8 7.9 2.9

Do Not Use a Microwave Oven............................. 13.4 2.4 1.6 0.8

Electric Coffee Maker

Use an Electric Coffee Maker................................ 67.2 16.2 10.8 5.3

3 or More Times a Day...................................... 2.5 0.6 0.5 Q

2 Times a Day................................................... 5.4 1.3 0.7 0.5

Once a Day....................................................... 36.9 8.2 5.5 2.7

A Few Times Each Week.................................. 9.7 2.9 2.1 0.9

About Once a Week.......................................... 5.0 1.3 0.8 0.5

Less Than Once a Week................................... 7.6 1.8 1.2 0.6

Do Not Use an Electric Coffee Maker.................... 43.9 9.4 6.9 2.5

Time Coffee Maker is Left On

Turned off Right Away....................................... 21.6 4.5 3.2 1.3

Less than 15 Minutes........................................ 11.2 2.6 1.9 0.7

15 Minutes to 1 Hour......................................... 21.1 5.7 3.7 1.9

More Than 1 Hour.............................................. 13.2 3.4 2.0 1.4

Table HC12.10 Home Appliances Usage Indicators by Midwest Census Region, 2005

 Million U.S. Housing Units

Home Appliances Usage Indicators East North Central West North Central

Midwest Census Region

U.S.

Housing

Units

(millions)

Census Division

Total

Midwest

Energy Information Administration

2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables
Table HC12.10 Home Appliances Usage Indicators by Midwest Census Region, 2005

 Million U.S. Housing Units

Home Appliances Usage Indicators East North Central West North Central

Midwest Census Region

U.S.

Housing

Units

(millions)

Census Division

Total

Midwest

Electric Toaster Oven

Use an Electric Toaster Oven................................ 37.3 6.5 4.6 1.9

3 or More Times a Day...................................... 0.9 Q Q Q

2 Times a Day................................................... 3.2 0.4 Q Q

Once a Day....................................................... 9.0 1.5 1.0 0.5

A Few Times Each Week.................................. 11.6 2.1 1.6 0.5

About Once a Week.......................................... 4.4 0.9 0.7 Q

Less Than Once a Week................................... 8.1 1.6 1.0 0.6

Do Not Use an Electric Toaster Oven.................... 73.8 19.1 13.2 6.0

Electric Toaster Oven Function

Used Only as a Toaster..................................... 22.0 3.4 2.6 0.8

Used Only as an Oven....................................... 5.7 1.3 0.9 0.4

Used Both as a Toaster and an Oven................ 9.6 1.7 1.1 0.6

Refrigerators

Most-Used RefrIgerator

Age of Most-Used Refrigerator

Less than 2 Years.............................................. 19.0 3.9 2.6 1.3

2 to 4 Years....................................................... 22.7 4.6 3.2 1.4

5 to 9 Years....................................................... 30.9 7.4 5.3 2.1

10 to 19 Years................................................... 25.7 6.7 4.7 2.0

20 Years or More............................................... 6.1 1.5 1.1 0.4

Don't Know........................................................ 6.7 1.5 0.8 0.7

Energy Star (Most-Used) Refrigerator1

Yes.................................................................... 23.9 5.0 3.5 1.5

No...................................................................... 12.9 2.3 1.5 0.8

Don't Know........................................................ 4.9 1.2 0.8 0.4

Unit is More Than 4 Years Old........................... 69.4 17.1 11.9 5.2

Use a Second Refrigerator..................................... 24.6 7.1 4.8 2.3

Age of Second Refrigerator

Less than 2 Years.............................................. 2.3 0.7 0.4 0.3

2 to 4 Years....................................................... 3.8 0.9 0.6 0.4

5 to 9 Years....................................................... 5.3 1.5 1.0 0.5

10 to 19 Years................................................... 8.6 2.5 1.9 0.6

20 Years or More............................................... 4.1 1.3 0.9 0.4

Don't Know........................................................ 0.5 Q Q Q

Do Not Use a Second Refrigerator........................ 86.3 18.5 12.9 5.5

Number of Months Turned on Each Year

1 to 3 Months..................................................... 1.9 0.6 0.3 0.2

4 to 6 Months..................................................... 0.9 0.3 Q Q

7 to 11 Months................................................... 0.5 Q Q Q

On all the Time.................................................. 21.2 5.9 4.2 1.8

Energy Information Administration

2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables
Table HC12.10 Home Appliances Usage Indicators by Midwest Census Region, 2005

 Million U.S. Housing Units

Home Appliances Usage Indicators East North Central West North Central

Midwest Census Region

U.S.

Housing

Units

(millions)

Census Division

Total

Midwest

Dishwasher

Use a Dishwasher..................................................... 64.7 14.7 9.8 5.0

At Least Once Each Day....................................... 11.3 2.7 1.7 0.9

4 to 6 Times a Week............................................. 11.7 2.9 1.9 1.0

2 to 3 Times a Week............................................. 21.8 5.2 3.5 1.7

Once each Week.................................................. 9.0 1.8 1.2 0.7

Less than Once Each Week.................................. 10.9 2.1 1.4 0.6

Do Not Use a Dishwasher......................................... 46.4 10.9 8.0 2.9

Energy Star Dishwasher1

Yes........................................................................ 16.4 3.6 2.4 1.2

No......................................................................... 6.6 1.3 0.8 0.5

Don't Know............................................................ 3.1 0.9 0.6 0.3

Unit is More Than 4 Years Old.............................. 85.0 19.8 13.9 5.8

Clothes Washers and Dryers

Clothes Washer

Use a Clothes Washer in the Home...................... 91.8 22.0 15.3 6.7

1 Load Each Week............................................ 7.3 1.6 1.3 0.4

2 to 5 Loads Each Week................................... 39.0 8.9 6.0 2.9

6 to 9 Loads Each Week................................... 33.8 8.2 5.9 2.3

10 to 15 Loads Each Week............................... 9.3 2.4 1.6 0.8

More than 15 Loads Each Week........................ 2.4 0.9 0.5 0.4

Do Not Use a Clothes Washer in the Home.......... 19.3 3.6 2.4 1.2

Usual Water Temperature Setting

Wash Cycle

Hot..................................................................... 6.7 1.3 0.8 0.5

Warm................................................................ 50.5 13.7 9.6 4.1

Cold................................................................... 34.6 7.1 4.9 2.2

Rinse Cycle

Hot..................................................................... 1.6 Q Q N

Warm................................................................ 18.2 4.3 3.1 1.3

Cold................................................................... 72.0 17.5 12.1 5.4

Energy Star Clothes Washer1

Yes........................................................................ 21.7 4.4 3.0 1.4

No......................................................................... 10.4 1.7 1.1 0.6

Don't Know............................................................ 4.5 1.1 0.6 0.5

Unit is More Than 4 Years Old.............................. 55.1 14.8 10.6 4.2

Loads of Clothes Dried

Use a Clothes Dryer in the Home.......................... 87.5 21.7 15.1 6.6

Every Time Clothes are Washed....................... 72.4 17.2 12.0 5.2

Some, but Not All, Loads................................... 12.4 3.9 2.5 1.4

Used Infrequently.............................................. 2.7 0.6 0.5 Q

Do Not Use a Clothes Dryer in the Home.............. 23.6 3.9 2.7 1.2

Energy Information Administration

2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables
Table HC12.10 Home Appliances Usage Indicators by Midwest Census Region, 2005

 Million U.S. Housing Units

Home Appliances Usage Indicators East North Central West North Central

Midwest Census Region

U.S.

Housing

Units

(millions)

Census Division

Total

Midwest

Other Appliances

Ceiling Fans

1............................................................................ 21.7 5.3 4.0 1.3

2............................................................................ 17.4 4.4 3.0 1.4

3............................................................................ 12.3 3.4 2.3 1.1

4 or More............................................................... 25.8 6.1 3.7 2.3

Use of Most-Used Ceiling Fan

Used All Summer.............................................. 18.7 4.9 3.4 1.5

Used Quite a Bit................................................ 16.2 4.1 3.0 1.1

Used Only a Few Days or Nights....................... 39.3 9.5 6.2 3.3

Not Used at All.................................................. 2.9 0.7 0.5 Q

Battery-Operated Appliances/Tools

Use Battery-Operated Appliances/Tools................ 54.9 13.6 8.8 4.8

Plugged in All the Time...................................... 10.0 2.3 1.6 0.8

Recharged as Needed....................................... 41.6 10.4 6.9 3.5

Both Ways Are Used......................................... 3.3 0.8 0.3 0.5

Do Not Use Battery-Operated Appliances/Tools.... 56.2 12.0 9.0 3.1

Other Appliances Used

Auto Block/Engine/Battery Heater............................. 0.8 0.4 Q Q

Hot Tub or Spa......................................................... 6.7 1.3 0.9 0.4

Swimming Pool with Filters....................................... 8.3 1.5 1.2 Q

Water Bed................................................................ 2.2 0.7 0.6 Q

 1. The question of whether the appliance was an Energy Star appliance was asked only of those housing units having a appliance that 

was less than 4 years old.

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

sampled.

 N = No cases in reporting sample.

 Notes: ● Because of rounding, data may not sum to totals. ● See Glossary for definition of terms used in these tables.

 Source: Energy Information Administration, Office of Energy Markets and End Use, Forms EIA-457 A, B, C of the 2005 

Residential Energy Consumption Survey.

Energy Information Administration

2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables
Total.................................................................................... 111.1 40.7 21.7 6.9 12.1

Cooking Appliances

Frequency of Hot Meals Cooked

3 or More Times A Day................................................. 8.2 3.0 1.6 0.3 1.1

2 Times A Day.............................................................. 24.6 8.3 4.2 1.3 2.7

Once a Day................................................................... 42.3 15.0 8.1 2.7 4.2

A Few Times Each Week............................................. 27.2 10.9 6.0 1.8 3.1

About Once a Week..................................................... 3.9 1.6 0.7 0.4 0.5

Less Than Once a Week.............................................. 4.1 1.7 1.0 0.4 0.4

No Hot Meals Cooked................................................... 0.9 Q Q N Q

Coventional Oven

Use an Oven................................................................. 109.6 40.2 21.5 6.8 11.9

More Than Once a Day............................................. 8.9 4.4 2.5 0.6 1.3

Once a Day............................................................... 19.2 7.7 3.7 1.8 2.2

Between Once a Day and Once a Week................... 32.0 11.4 6.2 2.2 3.1

Once a Week............................................................ 19.1 6.7 3.4 1.0 2.3

Less than Once a Week............................................ 30.3 10.1 5.7 1.3 3.1

Do Not Use an Oven..................................................... 1.5 0.5 Q Q Q

Microwave Oven

Use a Microwave Oven................................................. 97.7 35.2 18.7 5.8 10.7

Most or all Food Cooked........................................... 8.3 2.8 1.7 0.4 0.7

About Half of All Food Cooked.................................. 17.3 5.5 3.0 1.0 1.5

Some or Very Little Food Cooked............................. 21.9 8.4 4.5 1.4 2.5

For Defrosting, Reheating, or Snacks........................ 50.2 18.4 9.5 3.0 5.9

Do Not Use a Microwave Oven..................................... 13.4 5.5 3.0 Q 1.5

Electric Coffee Maker

Use an Electric Coffee Maker....................................... 67.2 25.2 13.2 4.5 7.5

3 or More Times a Day.............................................. 2.5 1.0 0.5 0.3 0.3

2 Times a Day........................................................... 5.4 1.8 0.9 0.4 0.5

Once a Day............................................................... 36.9 14.4 7.7 2.4 4.3

A Few Times Each Week.......................................... 9.7 3.5 1.8 0.8 1.0

About Once a Week.................................................. 5.0 1.4 0.7 0.2 0.5

Less Than Once a Week........................................... 7.6 3.1 1.6 0.5 0.9

Do Not Use an Electric Coffee Maker........................... 43.9 15.5 8.5 2.4 4.6

Time Coffee Maker is Left On

Turned off Right Away............................................... 21.6 8.4 5.2 1.1 2.1

Less than 15 Minutes................................................ 11.2 3.9 2.0 0.6 1.3

15 Minutes to 1 Hour................................................. 21.1 8.0 3.7 1.6 2.6

More Than 1 Hour..................................................... 13.2 4.9 2.3 1.1 1.5

Census Division

Total 

South

Table HC13.10 Home Appliances Usage Indicators by South Census Region, 2005

 Million U.S. Housing Units

Home Appliances Usage Indicators South Atlantic East South 

Central

West South 

Central

South Census Region

U.S.

Housing

Units

(millions)

Energy Information Administration

2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables
Census Division

Total 

South

Table HC13.10 Home Appliances Usage Indicators by South Census Region, 2005

 Million U.S. Housing Units

Home Appliances Usage Indicators South Atlantic East South 

Central

West South 

Central

South Census Region

U.S.

Housing

Units

(millions)

Electric Toaster Oven

Use an Electric Toaster Oven....................................... 37.3 13.7 8.2 2.0 3.5

3 or More Times a Day.............................................. 0.9 QQQQ

2 Times a Day........................................................... 3.2 0.9 0.6 Q Q

Once a Day............................................................... 9.0 3.3 2.2 0.4 0.7

A Few Times Each Week.......................................... 11.6 4.7 3.1 0.5 1.1

About Once a Week.................................................. 4.4 1.5 0.8 0.3 0.5

Less Than Once a Week........................................... 8.1 3.1 1.5 0.7 0.9

Do Not Use an Electric Toaster Oven........................... 73.8 27.0 13.5 4.8 8.7

Electric Toaster Oven Function

Used Only as a Toaster............................................. 22.0 8.4 5.3 1.3 1.8

Used Only as an Oven.............................................. 5.7 2.0 1.1 0.3 0.6

Used Both as a Toaster and an Oven....................... 9.6 3.3 1.8 0.5 1.0

Refrigerators

Most-Used RefrIgerator

Age of Most-Used Refrigerator

Less than 2 Years..................................................... 19.0 6.7 3.8 1.0 2.0

2 to 4 Years............................................................... 22.7 8.9 4.4 1.5 3.0

5 to 9 Years............................................................... 30.9 11.3 5.8 1.9 3.6

10 to 19 Years........................................................... 25.7 9.0 5.0 1.9 2.0

20 Years or More...................................................... 6.1 2.2 1.3 0.3 0.6

Don't Know................................................................ 6.7 2.6 1.3 0.3 1.0

Energy Star (Most-Used) Refrigerator1

Yes........................................................................... 23.9 7.6 3.6 1.3 2.7

No............................................................................. 12.9 6.1 3.6 0.9 1.6

Don't Know................................................................ 4.9 1.9 1.0 0.2 0.7

Unit is More Than 4 Years Old.................................. 69.4 25.1 13.5 4.5 7.1

Use a Second Refrigerator............................................. 24.6 8.0 4.7 1.2 2.0

Age of Second Refrigerator

Less than 2 Years..................................................... 2.3 0.8 0.6 Q Q

2 to 4 Years............................................................... 3.8 1.4 0.8 Q 0.5

5 to 9 Years............................................................... 5.3 1.6 1.0 Q 0.4

10 to 19 Years........................................................... 8.6 2.9 1.7 0.6 0.6

20 Years or More...................................................... 4.1 1.1 0.6 0.2 0.3

Don't Know................................................................ 0.5 QQQQ

Do Not Use a Second Refrigerator................................ 86.3 32.7 16.9 5.7 10.1

Number of Months Turned on Each Year

1 to 3 Months............................................................ 1.9 0.6 0.4 Q Q

4 to 6 Months............................................................ 0.9 Q Q Q N

7 to 11 Months.......................................................... 0.5 Q Q N N

On all the Time.......................................................... 21.2 7.2 4.2 1.1 1.9

Energy Information Administration

2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables
Census Division

Total 

South

Table HC13.10 Home Appliances Usage Indicators by South Census Region, 2005

 Million U.S. Housing Units

Home Appliances Usage Indicators South Atlantic East South 

Central

West South 

Central

South Census Region

U.S.

Housing

Units

(millions)

Dishwasher

Use a Dishwasher............................................................ 64.7 25.0 13.8 4.1 7.1

At Least Once Each Day............................................... 11.3 4.4 2.1 0.8 1.6

4 to 6 Times a Week..................................................... 11.7 4.5 2.6 0.7 1.2

2 to 3 Times a Week..................................................... 21.8 7.4 3.9 1.4 2.1

Once each Week.......................................................... 9.0 3.7 2.3 0.6 0.8

Less than Once Each Week......................................... 10.9 4.9 2.8 0.6 1.5

Do Not Use a Dishwasher................................................ 46.4 15.7 7.9 2.8 5.0

Energy Star Dishwasher1

Yes............................................................................... 16.4 5.9 3.0 0.7 2.2

No................................................................................. 6.6 3.3 2.1 0.5 0.7

Don't Know................................................................... 3.1 1.2 0.7 Q 0.3

Unit is More Than 4 Years Old...................................... 85.0 30.3 15.9 5.6 8.9

Clothes Washers and Dryers

Clothes Washer

Use a Clothes Washer in the Home.............................. 91.8 34.8 18.4 6.2 10.2

1 Load Each Week.................................................... 7.3 3.0 1.9 0.6 0.6

2 to 5 Loads Each Week........................................... 39.0 14.5 7.6 2.4 4.6

6 to 9 Loads Each Week........................................... 33.8 12.8 7.1 2.6 3.2

10 to 15 Loads Each Week....................................... 9.3 3.6 1.6 0.5 1.5

More than 15 Loads Each Week............................... 2.4 0.8 0.3 Q 0.4

Do Not Use a Clothes Washer in the Home.................. 19.3 5.9 3.3 0.7 1.9

Usual Water Temperature Setting

Wash Cycle

Hot............................................................................ 6.7 2.2 1.0 0.4 0.9

Warm........................................................................ 50.5 17.1 8.2 3.3 5.5

Cold.......................................................................... 34.6 15.5 9.1 2.5 3.9

Rinse Cycle

Hot............................................................................ 1.6 0.7 Q Q Q

Warm........................................................................ 18.2 6.5 2.6 1.4 2.4

Cold.......................................................................... 72.0 27.6 15.5 4.6 7.5

Energy Star Clothes Washer1

Yes............................................................................... 21.7 7.4 3.7 1.3 2.4

No................................................................................. 10.4 5.2 3.1 0.7 1.4

Don't Know................................................................... 4.5 1.8 0.7 0.4 0.7

Unit is More Than 4 Years Old...................................... 55.1 20.4 10.8 3.8 5.8

Loads of Clothes Dried

Use a Clothes Dryer in the Home................................. 87.5 33.2 17.6 5.9 9.7

Every Time Clothes are Washed............................... 72.4 29.0 14.9 5.2 8.9

Some, but Not All, Loads.......................................... 12.4 3.5 2.2 0.6 0.7

Used Infrequently...................................................... 2.7 0.8 0.5 Q Q

Do Not Use a Clothes Dryer in the Home...................... 23.6 7.5 4.1 1.0 2.4

Energy Information Administration

2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables
Census Division

Total 

South

Table HC13.10 Home Appliances Usage Indicators by South Census Region, 2005

 Million U.S. Housing Units

Home Appliances Usage Indicators South Atlantic East South 

Central

West South 

Central

South Census Region

U.S.

Housing

Units

(millions)

Other Appliances

Ceiling Fans

1................................................................................... 21.7 7.1 4.0 1.1 1.9

2................................................................................... 17.4 6.8 3.8 1.1 2.0

3................................................................................... 12.3 5.3 2.7 1.0 1.6

4 or More...................................................................... 25.8 13.2 6.2 2.3 4.7

Use of Most-Used Ceiling Fan

Used All Summer...................................................... 18.7 6.0 3.6 1.0 1.3

Used Quite a Bit........................................................ 16.2 5.8 3.2 0.9 1.6

Used Only a Few Days or Nights............................... 39.3 19.4 9.4 3.4 6.7

Not Used at All.......................................................... 2.9 1.1 0.5 Q 0.4

Battery-Operated Appliances/Tools

Use Battery-Operated Appliances/Tools....................... 54.9 20.2 10.9 3.3 6.1

Plugged in All the Time............................................. 10.0 3.9 2.1 0.7 1.1

Recharged as Needed.............................................. 41.6 15.0 8.3 2.4 4.4

Both Ways Are Used................................................. 3.3 1.3 0.5 0.2 0.6

Do Not Use Battery-Operated Appliances/Tools........... 56.2 20.5 10.8 3.6 6.1

Other Appliances Used

Auto Block/Engine/Battery Heater.................................... 0.8 NNNN

Hot Tub or Spa................................................................. 6.7 2.1 1.2 0.2 0.7

Swimming Pool with Filters............................................... 8.3 3.1 1.9 0.3 0.8

Water Bed........................................................................ 2.2 0.7 Q Q 0.4

 1. The question of whether the appliance was an Energy Star appliance was asked only of those housing units having a appliance that 

was less than 4 years old.

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

sampled.

 N = No cases in reporting sample.

 Notes: ● Because of rounding, data may not sum to totals. ● See Glossary for definition of terms used in these tables.

 Source: Energy Information Administration, Office of Energy Markets and End Use, Forms EIA-457 A, B, C of the 2005 

Residential Energy Consumption Survey.

Energy Information Administration

2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables
Total............................................................................. 111.1 24.2 7.6 16.6

Cooking Appliances

Frequency of Hot Meals Cooked

3 or More Times A Day......................................... 8.2 2.6 0.7 1.9

2 Times A Day...................................................... 24.6 6.6 2.0 4.6

Once a Day........................................................... 42.3 8.8 2.9 5.8

A Few Times Each Week...................................... 27.2 4.7 1.5 3.1

About Once a Week.............................................. 3.9 0.7 Q 0.6

Less Than Once a Week....................................... 4.1 0.7 0.3 0.4

No Hot Meals Cooked........................................... 0.9 0.2 Q Q

Coventional Oven

Use an Oven......................................................... 109.6 23.7 7.5 16.2

More Than Once a Day..................................... 8.9 1.7 0.4 1.3

Once a Day....................................................... 19.2 3.2 1.1 2.2

Between Once a Day and Once a Week........... 32.0 6.1 2.1 4.0

Once a Week.................................................... 19.1 4.2 1.4 2.8

Less than Once a Week.................................... 30.3 8.3 2.4 5.9

Do Not Use an Oven............................................. 1.5 0.5 Q 0.4

Microwave Oven

Use a Microwave Oven......................................... 97.7 21.7 7.2 14.4

Most or all Food Cooked.................................... 8.3 2.0 0.7 1.2

About Half of All Food Cooked........................... 17.3 4.6 1.9 2.7

Some or Very Little Food Cooked...................... 21.9 5.3 1.6 3.7

For Defrosting, Reheating, or Snacks................ 50.2 9.9 3.0 6.8

Do Not Use a Microwave Oven............................. 13.4 2.5 0.3 2.2

Electric Coffee Maker

Use an Electric Coffee Maker................................ 67.2 13.7 4.6 9.1

3 or More Times a Day...................................... 2.5 0.5 0.2 0.3

2 Times a Day................................................... 5.4 1.0 0.4 0.6

Once a Day....................................................... 36.9 7.8 2.7 5.1

A Few Times Each Week.................................. 9.7 1.8 0.6 1.3

About Once a Week.......................................... 5.0 1.1 0.3 0.8

Less Than Once a Week................................... 7.6 1.5 0.4 1.1

Do Not Use an Electric Coffee Maker.................... 43.9 10.5 3.0 7.5

Time Coffee Maker is Left On

Turned off Right Away....................................... 21.6 4.1 1.4 2.7

Less than 15 Minutes........................................ 11.2 2.3 0.8 1.5

15 Minutes to 1 Hour......................................... 21.1 4.2 1.4 2.8

More Than 1 Hour.............................................. 13.2 3.1 1.0 2.2

Table HC14.10 Home Appliances Usage Indicators by West Census Region, 2005

 Million U.S. Housing Units

Home Appliances Usage Indicators Mountain Pacific

West Census Region

U.S.

Housing

Units

(millions)

Census Division

Total

West

Energy Information Administration

2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables
Table HC14.10 Home Appliances Usage Indicators by West Census Region, 2005

 Million U.S. Housing Units

Home Appliances Usage Indicators Mountain Pacific

West Census Region

U.S.

Housing

Units

(millions)

Census Division

Total

West

Electric Toaster Oven

Use an Electric Toaster Oven................................ 37.3 8.1 2.4 5.7

3 or More Times a Day...................................... 0.9 Q Q Q

2 Times a Day................................................... 3.2 1.0 Q 0.7

Once a Day....................................................... 9.0 1.9 0.3 1.5

A Few Times Each Week.................................. 11.6 2.5 0.6 1.9

About Once a Week.......................................... 4.4 1.1 0.4 0.7

Less Than Once a Week................................... 8.1 1.5 0.7 0.8

Do Not Use an Electric Toaster Oven.................... 73.8 16.1 5.1 11.0

Electric Toaster Oven Function

Used Only as a Toaster..................................... 22.0 5.2 1.7 3.6

Used Only as an Oven....................................... 5.7 1.1 0.4 0.7

Used Both as a Toaster and an Oven................ 9.6 1.8 0.4 1.4

Refrigerators

Most-Used RefrIgerator

Age of Most-Used Refrigerator

Less than 2 Years.............................................. 19.0 5.2 1.4 3.8

2 to 4 Years....................................................... 22.7 5.0 1.7 3.2

5 to 9 Years....................................................... 30.9 6.9 2.1 4.9

10 to 19 Years................................................... 25.7 4.7 1.4 3.3

20 Years or More............................................... 6.1 1.1 0.5 0.6

Don't Know........................................................ 6.7 1.3 0.4 0.8

Energy Star (Most-Used) Refrigerator1

Yes.................................................................... 23.9 6.4 1.7 4.7

No...................................................................... 12.9 2.5 1.0 1.5

Don't Know........................................................ 4.9 1.2 0.4 0.8

Unit is More Than 4 Years Old........................... 69.4 14.0 4.4 9.6

Use a Second Refrigerator..................................... 24.6 5.3 1.5 3.8

Age of Second Refrigerator

Less than 2 Years.............................................. 2.3 0.5 Q 0.4

2 to 4 Years....................................................... 3.8 0.9 Q 0.7

5 to 9 Years....................................................... 5.3 1.2 0.3 0.9

10 to 19 Years................................................... 8.6 1.8 0.6 1.1

20 Years or More............................................... 4.1 0.9 0.2 0.6

Don't Know........................................................ 0.5 Q Q Q

Do Not Use a Second Refrigerator........................ 86.3 18.9 6.0 12.9

Number of Months Turned on Each Year

1 to 3 Months..................................................... 1.9 0.5 Q 0.4

4 to 6 Months..................................................... 0.9 Q Q Q

7 to 11 Months................................................... 0.5 Q N Q

On all the Time.................................................. 21.2 4.5 1.4 3.1

Energy Information Administration

2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables
Table HC14.10 Home Appliances Usage Indicators by West Census Region, 2005

 Million U.S. Housing Units

Home Appliances Usage Indicators Mountain Pacific

West Census Region

U.S.

Housing

Units

(millions)

Census Division

Total

West

Dishwasher

Use a Dishwasher..................................................... 64.7 14.7 5.0 9.7

At Least Once Each Day....................................... 11.3 2.4 0.7 1.8

4 to 6 Times a Week............................................. 11.7 2.7 1.2 1.5

2 to 3 Times a Week............................................. 21.8 5.2 2.0 3.2

Once each Week.................................................. 9.0 2.3 0.5 1.8

Less than Once Each Week.................................. 10.9 2.1 0.7 1.5

Do Not Use a Dishwasher......................................... 46.4 9.5 2.6 6.9

Energy Star Dishwasher1

Yes........................................................................ 16.4 4.2 1.4 2.8

No......................................................................... 6.6 1.3 0.5 0.8

Don't Know............................................................ 3.1 0.6 0.3 0.4

Unit is More Than 4 Years Old.............................. 85.0 18.1 5.4 12.7

Clothes Washers and Dryers

Clothes Washer

Use a Clothes Washer in the Home...................... 91.8 19.6 6.6 12.9

1 Load Each Week............................................ 7.3 1.3 0.3 1.0

2 to 5 Loads Each Week................................... 39.0 8.3 2.8 5.5

6 to 9 Loads Each Week................................... 33.8 7.5 2.7 4.8

10 to 15 Loads Each Week............................... 9.3 1.9 0.7 1.2

More than 15 Loads Each Week........................ 2.4 0.5 Q 0.3

Do Not Use a Clothes Washer in the Home.......... 19.3 4.6 0.9 3.7

Usual Water Temperature Setting

Wash Cycle

Hot..................................................................... 6.7 1.4 0.3 1.1

Warm................................................................ 50.5 10.9 3.7 7.3

Cold................................................................... 34.6 7.3 2.6 4.6

Rinse Cycle

Hot..................................................................... 1.6 0.3 Q Q

Warm................................................................ 18.2 4.0 1.1 2.8

Cold................................................................... 72.0 15.3 5.4 9.9

Energy Star Clothes Washer1

Yes........................................................................ 21.7 5.6 1.6 4.0

No......................................................................... 10.4 2.1 0.9 1.3

Don't Know............................................................ 4.5 1.2 0.5 0.7

Unit is More Than 4 Years Old.............................. 55.1 10.6 3.6 6.9

Loads of Clothes Dried

Use a Clothes Dryer in the Home.......................... 87.5 18.8 6.2 12.6

Every Time Clothes are Washed....................... 72.4 15.2 4.9 10.3

Some, but Not All, Loads................................... 12.4 2.9 1.0 1.9

Used Infrequently.............................................. 2.7 0.7 0.3 0.4

Do Not Use a Clothes Dryer in the Home.............. 23.6 5.4 1.3 4.1

Energy Information Administration

2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables
Table HC14.10 Home Appliances Usage Indicators by West Census Region, 2005

 Million U.S. Housing Units

Home Appliances Usage Indicators Mountain Pacific

West Census Region

U.S.

Housing

Units

(millions)

Census Division

Total

West

Other Appliances

Ceiling Fans

1............................................................................ 21.7 5.5 1.7 3.8

2............................................................................ 17.4 3.3 1.3 2.0

3............................................................................ 12.3 1.8 0.7 1.1

4 or More............................................................... 25.8 3.8 1.6 2.2

Use of Most-Used Ceiling Fan

Used All Summer.............................................. 18.7 4.4 1.4 2.9

Used Quite a Bit................................................ 16.2 3.2 1.0 2.2

Used Only a Few Days or Nights....................... 39.3 6.1 2.5 3.6

Not Used at All.................................................. 2.9 0.8 0.3 0.4

Battery-Operated Appliances/Tools

Use Battery-Operated Appliances/Tools................ 54.9 12.6 4.2 8.4

Plugged in All the Time...................................... 10.0 2.2 0.7 1.5

Recharged as Needed....................................... 41.6 10.0 3.4 6.5

Both Ways Are Used......................................... 3.3 0.5 Q 0.4

Do Not Use Battery-Operated Appliances/Tools.... 56.2 11.6 3.3 8.2

Other Appliances Used

Auto Block/Engine/Battery Heater............................. 0.8 0.2 Q 0.1

Hot Tub or Spa......................................................... 6.7 2.2 0.6 1.7

Swimming Pool with Filters....................................... 8.3 2.2 0.7 1.5

Water Bed................................................................ 2.2 0.4 0.2 Q

 1. The question of whether the appliance was an Energy Star appliance was asked only of those housing units having a appliance that 

was less than 4 years old.

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

sampled.

 N = No cases in reporting sample.

 Notes: ● Because of rounding, data may not sum to totals. ● See Glossary for definition of terms used in these tables.

 Source: Energy Information Administration, Office of Energy Markets and End Use, Forms EIA-457 A, B, C of the 2005 

Residential Energy Consumption Survey.

Energy Information Administration

2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables
Table HC15.10 Home Appliances Usage Indicators by Four Most Populated States, 2005

Total.................................................................................... 0.0 0.0 0.0 0.0 0.0

Cooking Appliances

Frequency of Hot Meals Cooked

3 or More Times A Day................................................. 6.6 21.3 25.3 29.9 13.3

2 Times A Day.............................................................. 3.1 14.0 23.0 7.4 10.3

Once a Day................................................................... 2.2 5.2 11.8 10.5 5.6

A Few Times Each Week.............................................. 3.1 6.5 15.8 14.9 9.8

About Once a Week...................................................... 9.0 30.6 67.7 25.9 25.8

Less Than Once a Week............................................... 7.7 52.2 47.1 33.0 12.0

No Hot Meals Cooked................................................... 22.6 105.7 103.4 91.6 65.8

Coventional Oven

Use an Oven................................................................. 0.2 0.1 1.3 1.1 1.2

More Than Once a Day............................................. 6.3 22.8 16.6 18.7 17.2

Once a Day............................................................... 3.4 16.5 30.3 10.4 13.9

Between Once a Day and Once a Week................... 2.4 10.5 14.5 10.7 8.9

Once a Week............................................................ 3.5 11.3 18.5 13.1 11.8

Less than Once a Week............................................ 2.5 11.0 11.3 6.1 6.4

Do Not Use an Oven..................................................... 14.7 96.2 68.0 47.1 34.9

Microwave Oven

Use a Microwave Oven................................................. 1.0 4.3 4.5 2.0 2.7

Most or all Food Cooked............................................ 7.4 68.5 22.9 22.9 29.9

About Half of All Food Cooked.................................. 4.3 21.5 18.7 22.7 10.4

Some or Very Little Food Cooked.............................. 3.8 15.0 21.4 14.7 9.8

For Defrosting, Reheating, or Snacks........................ 2.7 4.3 11.3 8.7 6.4

Do Not Use a Microwave Oven..................................... 7.3 19.7 24.6 12.4 15.2

Electric Coffee Maker

Use an Electric Coffee Maker........................................ 1.8 10.6 4.7 4.7 6.3

3 or More Times a Day.............................................. 11.0 76.6 78.0 52.9 44.6

2 Times a Day........................................................... 6.8 18.8 39.7 35.9 17.8

Once a Day............................................................... 3.0 12.8 14.0 9.7 6.6

A Few Times Each Week.......................................... 5.1 32.6 18.3 26.9 17.5

About Once a Week.................................................. 7.9 52.0 57.8 33.6 19.5

Less Than Once a Week........................................... 6.3 51.2 27.6 25.8 22.6

Do Not Use an Electric Coffee Maker............................ 2.8 9.9 7.8 7.6 6.8

Time Coffee Maker is Left On

Turned off Right Away............................................... 3.5 17.7 14.6 14.5 11.6

Less than 15 Minutes................................................ 4.7 22.0 16.3 18.4 15.2

15 Minutes to 1 Hour................................................. 4.0 16.6 25.1 10.5 11.2

More Than 1 Hour..................................................... 4.8 13.5 24.7 18.3 12.0

Housing

Units 

(millions)

 Million U.S. Housing Units

U.S. Census Region

Home Appliances Usage Indicators Northeast Midwest South West

Energy Information Administration

2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables
Table HC15.10 Home Appliances Usage Indicators by Four Most Populated States, 2005

Housing

Units 

(millions)

 Million U.S. Housing Units

U.S. Census Region

Home Appliances Usage Indicators Northeast Midwest South West

Electric Toaster Oven

Use an Electric Toaster Oven....................................... 2.6 13.7 6.5 9.2 5.3

3 or More Times a Day.............................................. 22.3 53.5 71.1 0.0 57.8

2 Times a Day........................................................... 12.1 44.6 45.0 56.4 30.0

Once a Day............................................................... 4.9 13.7 19.0 20.3 16.7

A Few Times Each Week.......................................... 5.3 31.3 16.5 24.4 14.9

About Once a Week.................................................. 7.3 32.1 48.7 26.5 14.6

Less Than Once a Week........................................... 6.9 17.2 21.6 23.4 31.8

Do Not Use an Electric Toaster Oven............................ 1.3 8.4 5.2 3.6 3.0

Electric Toaster Oven Function

Used Only as a Toaster............................................. 3.9 14.1 12.8 15.6 7.5

Used Only as an Oven............................................... 7.5 36.5 33.0 30.8 20.5

Used Both as a Toaster and an Oven........................ 5.8 21.4 23.0 18.0 16.1

Refrigerators

Most-Used RefrIgerator

Age of Most-Used Refrigerator

Less than 2 Years..................................................... 3.9 13.0 13.6 18.2 8.2

2 to 4 Years............................................................... 3.0 11.5 7.1 10.2 11.5

5 to 9 Years............................................................... 2.9 6.7 9.2 6.5 13.4

10 to 19 Years........................................................... 3.2 9.6 14.6 13.3 17.2

20 Years or More....................................................... 6.7 22.8 12.2 27.9 40.9

Don't Know................................................................ 8.4 35.0 43.6 27.4 25.9

Energy Star (Most-Used) Refrigerator1

Yes............................................................................ 3.2 11.7 9.9 14.9 6.8

No............................................................................. 5.5 20.0 15.6 10.0 23.0

Don't Know................................................................ 9.1 47.8 42.1 28.5 16.0

Unit is More Than 4 Years Old................................... 1.3 5.3 3.0 6.8 3.5

Use a Second Refrigerator............................................. 3.9 14.5 25.5 14.7 10.6

Age of Second Refrigerator

Less than 2 Years..................................................... 11.3 73.1 32.1 57.8 28.3

2 to 4 Years............................................................... 8.7 29.1 35.9 25.4 22.3

5 to 9 Years............................................................... 7.3 35.6 28.4 28.9 26.6

10 to 19 Years........................................................... 5.7 42.1 36.0 34.6 15.6

20 Years or More....................................................... 9.5 19.7 90.1 46.8 35.1

Don't Know................................................................ 22.3 0.0 0.0 72.2 103.2

Do Not Use a Second Refrigerator................................ 1.1 3.1 5.2 3.5 2.7

Number of Months Turned on Each Year

1 to 3 Months............................................................. 11.2 69.0 17.7 33.6 37.5

4 to 6 Months............................................................. 16.5 36.3 0.0 0.0 36.8

7 to 11 Months........................................................... 20.2 119.5 95.2 0.0 99.8

On all the Time.......................................................... 4.2 15.3 30.7 18.1 10.4

Energy Information Administration

2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables
Table HC15.10 Home Appliances Usage Indicators by Four Most Populated States, 2005

Housing

Units 

(millions)

 Million U.S. Housing Units

U.S. Census Region

Home Appliances Usage Indicators Northeast Midwest South West

Dishwasher

Use a Dishwasher............................................................. 1.8 8.4 10.3 5.3 4.9

At Least Once Each Day............................................... 5.6 35.4 41.4 23.0 16.2

4 to 6 Times a Week..................................................... 4.6 39.3 20.7 19.9 11.0

2 to 3 Times a Week..................................................... 3.6 20.5 13.5 16.1 7.1

Once each Week.......................................................... 4.9 49.1 21.0 29.8 12.4

Less than Once Each Week.......................................... 4.9 29.5 14.1 12.9 16.7

Do Not Use a Dishwasher................................................. 2.5 4.9 20.1 8.8 6.0

Energy Star Dishwasher1

Yes............................................................................... 4.7 9.9 26.5 19.8 11.7

No................................................................................. 7.7 103.4 35.0 23.0 17.9

Don't Know.................................................................... 10.0 15.3 55.9 34.3 31.6

Unit is More Than 4 Years Old...................................... 1.3 1.5 11.0 7.4 3.1

Clothes Washers and Dryers

Clothes Washer

Use a Clothes Washer in the Home.............................. 1.2 8.0 5.4 2.8 5.2

1 Load Each Week.................................................... 6.6 29.3 27.0 35.4 17.8

2 to 5 Loads Each Week........................................... 2.4 11.4 9.9 7.9 8.9

6 to 9 Loads Each Week........................................... 2.9 13.7 10.3 10.3 6.8

10 to 15 Loads Each Week....................................... 6.1 20.8 30.0 27.0 12.1

More than 15 Loads Each Week............................... 11.7 0.0 94.3 49.3 19.2

Do Not Use a Clothes Washer in the Home.................. 5.8 13.0 25.4 12.9 16.1

Usual Water Temperature Setting

Wash Cycle

Hot............................................................................ 6.6 30.6 21.0 30.2 13.2

Warm........................................................................ 2.2 7.4 19.1 6.8 6.1

Cold........................................................................... 2.8 19.9 6.9 6.3 8.3

Rinse Cycle

Hot............................................................................ 15.4 59.8 70.0 36.1 26.2

Warm........................................................................ 4.4 16.5 18.7 5.9 9.7

Cold........................................................................... 1.6 6.6 4.8 4.7 6.2

Energy Star Clothes Washer1

Yes............................................................................... 3.2 16.6 14.3 14.4 6.0

No................................................................................. 6.4 43.3 30.3 14.7 26.4

Don't Know.................................................................... 9.4 54.6 38.2 39.8 21.3

Unit is More Than 4 Years Old...................................... 2.0 11.7 8.4 8.0 7.9

Loads of Clothes Dried

Use a Clothes Dryer in the Home.................................. 1.3 8.8 5.4 4.6 4.9

Every Time Clothes are Washed............................... 1.7 11.2 6.2 5.9 6.3

Some, but Not All, Loads........................................... 4.7 15.5 22.6 30.3 12.2

Used Infrequently...................................................... 11.1 44.1 58.6 34.3 25.2

Do Not Use a Clothes Dryer in the Home...................... 4.9 8.9 20.3 14.8 13.7

Energy Information Administration

2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables
Table HC15.10 Home Appliances Usage Indicators by Four Most Populated States, 2005

Housing

Units 

(millions)

 Million U.S. Housing Units

U.S. Census Region

Home Appliances Usage Indicators Northeast Midwest South West

Other Appliances

Ceiling Fans

1.................................................................................... 3.2 12.1 12.9 21.6 7.4

2.................................................................................... 4.3 19.0 38.9 19.3 11.6

3.................................................................................... 4.8 20.8 26.8 14.7 14.0

4 or More....................................................................... 3.6 29.5 13.2 9.4 8.5

Use of Most-Used Ceiling Fan

Used All Summer...................................................... 3.9 27.9 12.8 15.1 10.7

Used Quite a Bit........................................................ 4.0 13.1 14.1 17.6 9.4

Used Only a Few Days or Nights............................... 2.4 26.7 7.1 6.1 7.4

Not Used at All.......................................................... 9.6 28.9 105.6 40.3 25.3

Battery-Operated Appliances/Tools

Use Battery-Operated Appliances/Tools....................... 2.5 18.5 12.3 7.2 7.3

Plugged in All the Time.............................................. 5.1 27.3 21.0 14.9 15.6

Recharged as Needed............................................... 2.8 24.9 16.1 8.1 7.5

Both Ways Are Used................................................. 13.9 105.9 60.0 34.3 22.4

Do Not Use Battery-Operated Appliances/Tools............ 2.5 8.0 13.2 6.1 6.9

Other Appliances Used

Auto Block/Engine/Battery Heater..................................... 20.4 96.7 0.0 0.0 0.0

Hot Tub or Spa................................................................. 7.4 23.2 32.3 26.8 20.9

Swimming Pool with Filters............................................... 8.2 54.9 25.7 26.5 19.5

Water Bed........................................................................ 12.3 81.8 73.7 30.3 46.2

 1. The question of whether the appliance was an Energy Star appliance was asked only of those housing units having a appliance that 

was less than 4 years old.

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

sampled.

 N = No cases in reporting sample.

 Notes: ● Because of rounding, data may not sum to totals. ● See Glossary for definition of terms used in these tables.

 Source: Energy Information Administration, Office of Energy Markets and End Use, Forms EIA-457 A, B, C of the 2005 

Residential Energy Consumption Survey.

Energy Information Administration

2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables