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Release date: February 2017
Revised date: May 2018
Number of housing units (million) | ||||||
Housing unit type | ||||||
Total U.S.2 | Single-family detached | Single-family attached | Apartment (2- to 4-unit building) |
Apartment (5 or more unit building) |
Mobile home | |
All homes | 118.2 | 73.9 | 7.0 | 9.4 | 21.1 | 6.8 |
Air-conditioning equipment | ||||||
Use air-conditioning equipment | 102.8 | 65.5 | 6.0 | 7.5 | 17.9 | 5.8 |
Do not use air-conditioning equipment | 15.4 | 8.3 | 1.0 | 1.9 | 3.2 | 1.0 |
Type of air-conditioning equipment used (more than one may apply) | ||||||
Use central air-conditioning equipment | 76.1 | 53.2 | 4.5 | 4.0 | 10.9 | 3.4 |
Without a heat pump | 55.4 | 38.5 | 3.3 | 3.0 | 8.2 | 2.5 |
With a heat pump | 20.7 | 14.8 | 1.2 | 1.0 | 2.7 | 1.0 |
Use individual air-conditioning units | 32.1 | 16.4 | 1.7 | 3.8 | 7.4 | 2.9 |
With 1 unit | 15.9 | 7.6 | 0.6 | 1.6 | 4.9 | 1.2 |
With 2 units | 9.6 | 4.7 | 0.5 | 1.5 | 1.8 | 1.1 |
With 3 or more units | 6.6 | 4.1 | 0.6 | 0.6 | 0.6 | 0.7 |
Do not use air-conditioning equipment | 15.4 | 8.3 | 1.0 | 1.9 | 3.2 | 1.0 |
Central air-conditioning equipment age | ||||||
Less than 2 years old | 8.3 | 5.3 | 0.5 | 0.6 | 1.6 | 0.4 |
2 to 4 years old | 11.7 | 7.4 | 0.7 | 0.8 | 2.4 | 0.4 |
5 to 9 years old | 22.4 | 15.8 | 1.3 | 1.2 | 3.1 | 1.0 |
10 to 14 years old | 17.2 | 12.9 | 1.0 | 0.8 | 1.6 | 0.9 |
15 to 19 years old | 9.2 | 6.9 | 0.5 | 0.4 | 0.9 | 0.4 |
20 or more years old | 7.3 | 4.9 | 0.4 | 0.3 | 1.3 | 0.4 |
Do not use central air-conditioning equipment | 42.1 | 20.6 | 2.5 | 5.4 | 10.3 | 3.4 |
Have thermostat for central air-conditioning equipment | ||||||
Yes | 74.7 | 52.7 | 4.4 | 3.8 | 10.5 | 3.3 |
Programmable thermostat | 47.9 | 35.9 | 3.2 | 2.3 | 4.6 | 1.9 |
Non-programmable thermostat | 26.8 | 16.8 | 1.2 | 1.5 | 5.9 | 1.4 |
No | 1.4 | 0.6 | Q | Q | 0.4 | Q |
Do not use central air-conditioning equipment | 42.1 | 20.6 | 2.5 | 5.4 | 10.3 | 3.4 |
Central air-conditioning equipment control | ||||||
Set one temperature and leave it there most of the time | 34.0 | 22.9 | 1.7 | 2.1 | 5.5 | 1.8 |
Manually adjust the temperature at night or when no one is at home | 19.6 | 13.7 | 1.3 | 0.9 | 2.9 | 0.7 |
Program the thermostat to automatically adjust the temperature during the day and night at certain times | 13.7 | 11.5 | 0.9 | 0.3 | 0.6 | 0.4 |
Turn equipment on or off as needed | 8.8 | 5.1 | 0.6 | 0.7 | 1.9 | 0.6 |
Household does not have control over the equipment | Q | Q | Q | N | N | N |
Do not use central air-conditioning equipment | 42.1 | 20.6 | 2.5 | 5.4 | 10.3 | 3.4 |
Most-used individual air-conditioning unit age | ||||||
Less than 2 years old | 6.4 | 3.2 | 0.3 | 0.9 | 1.4 | 0.6 |
2 to 4 years old | 10.0 | 4.8 | 0.6 | 1.1 | 2.3 | 1.1 |
5 to 9 years old | 9.8 | 5.6 | 0.5 | 1.1 | 1.7 | 0.9 |
10 to 14 years old | 3.7 | 1.7 | Q | 0.4 | 1.1 | 0.2 |
15 to 19 years old | 1.3 | 0.6 | Q | Q | 0.4 | Q |
20 or more years old | 1.1 | 0.5 | Q | Q | 0.4 | Q |
Do not use individual air-conditioning units | 86.1 | 57.5 | 5.3 | 5.6 | 13.8 | 3.8 |
Most-used individual air-conditioning unit control | ||||||
Set one temperature and leave it there most of the time | 9.8 | 5.0 | 0.6 | 1.3 | 1.8 | 1.1 |
Manually adjust the temperature at night or when no one is at home | 5.8 | 3.2 | 0.3 | 0.6 | 1.2 | 0.6 |
Program the thermostat to automatically adjust the temperature during the day and night at certain times | 1.5 | 0.7 | Q | Q | Q | Q |
Turn equipment on or off as needed | 14.8 | 7.3 | 0.6 | 1.7 | 4.1 | 1.0 |
Some other way | Q | Q | N | N | Q | N |
Do not use individual air-conditioning units | 86.1 | 57.5 | 5.3 | 5.6 | 13.8 | 3.8 |
Summer indoor daytime temperature when someone is home | ||||||
69 degrees or less | 19.9 | 10.5 | 1.2 | 2.3 | 4.5 | 1.3 |
70 degrees | 17.4 | 10.6 | 0.9 | 1.2 | 3.3 | 1.3 |
71 to 73 degrees | 20.5 | 13.7 | 1.5 | 1.3 | 3.2 | 0.9 |
74 to 76 degrees | 26.3 | 18.0 | 1.5 | 1.5 | 4.2 | 1.1 |
77 to 79 degrees | 13.0 | 9.3 | 0.6 | 0.7 | 1.6 | 0.8 |
80 degrees or more | 5.7 | 3.3 | 0.3 | 0.6 | 1.1 | 0.4 |
Do not use air-conditioning equipment | 15.4 | 8.3 | 1.0 | 1.9 | 3.2 | 1.0 |
Summer indoor daytime temperature when no one is home | ||||||
69 degrees or less | 14.0 | 7.7 | 1.0 | 1.5 | 2.8 | 1.0 |
70 degrees | 13.0 | 7.9 | 0.7 | 0.9 | 2.5 | 1.0 |
71 to 73 degrees | 14.5 | 9.9 | 0.9 | 1.0 | 2.1 | 0.6 |
74 to 76 degrees | 25.5 | 17.0 | 1.5 | 1.8 | 4.3 | 1.0 |
77 to 79 degrees | 15.9 | 10.8 | 0.9 | 0.9 | 2.4 | 1.1 |
80 degrees or more | 19.9 | 12.4 | 1.1 | 1.4 | 3.8 | 1.2 |
Do not use air-conditioning equipment | 15.4 | 8.3 | 1.0 | 1.9 | 3.2 | 1.0 |
Summer indoor temperature at night | ||||||
69 degrees or less | 25.8 | 14.6 | 1.6 | 2.4 | 5.2 | 1.9 |
70 degrees | 20.0 | 12.3 | 1.1 | 1.5 | 4.1 | 1.0 |
71 to 73 degrees | 19.1 | 12.8 | 1.3 | 1.3 | 2.8 | 0.9 |
74 to 76 degrees | 23.3 | 15.7 | 1.3 | 1.3 | 3.8 | 1.2 |
77 to 79 degrees | 10.4 | 7.5 | 0.6 | 0.5 | 1.2 | 0.6 |
80 degrees or more | 4.2 | 2.7 | 0.2 | 0.3 | 0.8 | 0.2 |
Do not use air-conditioning equipment | 15.4 | 8.3 | 1.0 | 1.9 | 3.2 | 1.0 |
Air-conditioned basement | ||||||
Yes | 14.2 | 13.2 | 1.0 | N | N | N |
No | 17.5 | 16.0 | 1.5 | N | N | N |
Not asked (air-conditioned homes with no basement) | 39.9 | 36.4 | 3.5 | N | N | N |
Not asked (un-air-conditioned homes, apartments, and mobile homes) | 46.7 | 8.3 | 1.0 | 9.4 | 21.1 | 6.8 |
Air-conditioned attic | ||||||
Yes | 1.6 | 1.5 | Q | N | N | N |
No | 39.9 | 37.7 | 2.3 | N | N | N |
Not asked (air-conditioned homes with no attic) | 30.0 | 26.3 | 3.6 | N | N | N |
Not asked (un-air-conditioned homes, apartments, and mobile homes) | 46.7 | 8.3 | 1.0 | 9.4 | 21.1 | 6.8 |
Air-conditioned, attached garage | ||||||
Yes | 1.0 | 0.9 | Q | N | N | N |
No | 41.1 | 38.5 | 2.6 | N | N | N |
Not asked (air-conditioned homes with no attached garage) | 29.4 | 26.1 | 3.3 | N | N | N |
Not asked (un-air-conditioned homes, apartments, and mobile homes) | 46.7 | 8.3 | 1.0 | 9.4 | 21.1 | 6.8 |
Dehumidifiers and usage | ||||||
Have a dehumidifier | 16.7 | 14.5 | 0.9 | 0.5 | 0.5 | 0.3 |
Do not use | 0.4 | 0.4 | Q | N | Q | Q |
Used less than 4 months | 5.5 | 4.6 | 0.3 | Q | Q | Q |
Used 4 to 6 months | 6.5 | 5.7 | 0.4 | Q | Q | Q |
Used 7 to 9 months | 2.0 | 1.8 | Q | Q | Q | N |
Used 10 to 11 months | Q | Q | Q | N | N | N |
Turned on all 12 months | 2.1 | 1.9 | Q | Q | Q | Q |
Do not have a dehumidifier | 101.5 | 59.4 | 6.2 | 8.9 | 20.6 | 6.5 |
Use an evaporative or swamp cooler (asked only in arid areas) | ||||||
Yes | 2.8 | 1.9 | Q | Q | 0.3 | 0.4 |
No | 54.8 | 35.0 | 2.7 | 3.2 | 9.7 | 4.3 |
Not asked | 60.6 | 37.0 | 4.2 | 6.1 | 11.1 | 2.2 |
Fan types used (more than one may apply) | ||||||
Ceiling fans | 85.1 | 61.4 | 4.9 | 4.7 | 9.6 | 4.4 |
Floor, window, or table fans | 54.4 | 32.7 | 3.2 | 4.7 | 9.8 | 4.0 |
Whole house fans | 6.1 | 5.5 | 0.5 | N | N | N |
Attic fans | 8.7 | 8.4 | 0.3 | N | N | N |
Number of ceiling fans used | ||||||
0 | 33.1 | 12.5 | 2.1 | 4.6 | 11.5 | 2.4 |
1 | 21.3 | 11.3 | 1.5 | 1.9 | 5.3 | 1.2 |
2 | 18.8 | 12.3 | 1.3 | 1.4 | 2.4 | 1.4 |
3 | 15.2 | 11.3 | 1.0 | 0.9 | 1.4 | 0.7 |
4 or more | 29.8 | 26.6 | 1.1 | 0.6 | 0.5 | 1.1 |
1Housing characteristics data were collected between August 2015 and April 2016. 2Total U.S. includes all primary occupied housing units in the 50 states and the District of Columbia. Vacant housing units, seasonal units, second homes, military houses, and group quarters are excluded. Q = Data withheld because either the Relative Standard Error (RSE) was greater than 50% or fewer than 10 households responded. Notes: Because of rounding, data may not sum to totals. See RECS Terminology for definition of terms used in these tables. Source: U.S. Energy Information Administration, Office of Energy Consumption and Efficiency Statistics, Forms EIA-457A and EIA-457C of the 2015 Residential Energy Consumption Survey. |