7.3 - WINDOW/ROOM AIR CONDITIONERS
  Number of households by type of dwelling1
Double/row houses Low-rise apartments High-rise apartments Mobile homes
Number of window/room air conditioners
One 279,319 M 505,944 A 277,202 M U
Two or more 94,084 M 106,099 M U U
Don't know U U U
Not stated U 254,527 M U U
Type of window/room air conditioner most frequently used
Window-mounted (louvred) unit 266,123 M 323,491 M 168,966 M U
Through the wall mounted (non-louvred) unit U 77,825 M U U
Free standing portable unit U 188,801 M U U
Mini-split air conditioner U U U
Wall mounted heat pump/air conditioner U U U
Don't know U U U
Not stated U 263,403 M U U
Capacity of the window/room air conditioner most frequently used
Less than 8,000 Btu 68,456 M U U U
8,000 to 10,000 Btu U U U U
More than 10,000 Btu 125,711 M 123,549 M U U
Don't know 179,022 M 259,314 A 163,341 M U
Not stated U 266,812 M U U
Age of the window/room air conditioner most frequently used
5 years or less 245,985 M 399,865 A 175,391 M U
6 to 10 years 101,996 M 124,453 M U U
11 to 15 years U U U
16 to 20 years U U U U
21 years or more U U U
Don't know U U U U
Not stated U 252,806 M U U
Households with an ENERGY STAR® window/room air conditioner (most frequently used)
Yes 220,555 M 250,423 M U U
No U 89,431 M U U
Don't know 112,837 M 289,090 M 166,607 M U
Not stated U 253,003 M U U

Footnotes:

1 Does not include the "Don't know/not stated" category.

Note:

Due to rounding, the numbers may not add up and may differ slightly among tables.

Legend:

The letter beside each estimate classifies its quality as follows: A–Acceptable, M–Use with caution, U–Too unreliable to be published.

Source:

2011 Survey of Household Energy Use