10.4 - DISHWASHER
  Number of households by size of household
Two members Three members Four or more members Not stated
Households with a dishwasher
Yes 3,070,503 A 1,516,909 A 2,656,627 A 665,819 A
No 1,291,565 A 529,167 A 378,730 A 131,898 M
Not stated 58,576 M U U U
Size of the dishwasher
Compact (mini - exterior width less than 56 cm/22 in.) 164,104 M U U U
Standard (full size - exterior width greater than or equal to 56 cm/22 in.) 2,810,130 A 1,424,808 A 2,368,919 A 432,332 M
Don't know U U U U
Not stated 136,587 M 76,475 M 106,755 M U
Age of the dishwasher
5 years or less 1,317,698 A 663,318 A 1,218,248 A 265,457 M
6 to 10 years 875,708 A 451,274 A 852,186 A U
11 to 15 years 443,076 A 238,259 M 336,541 M U
16 to 20 years 175,772 A 81,836 M 97,204 M U
21 to 25 years 92,216 M U U U
26 years or more U U U U
Don't know 108,518 M U U U
Not stated 90,306 M U U U
Households with an ENERGY STAR® dishwasher
Yes 1,551,602 A 806,097 A 1,491,480 A 334,499 M
No 619,132 A 259,629 A 498,925 A U
Don't know 580,644 A 279,771 A 412,787 A U
Not stated 377,700 A 197,504 M 282,367 A U
Usual dishwasher dish drying method used
Heat on (with the door closed) 1,661,555 A 827,755 A 1,695,476 A 321,921 M
Heat off (with the door closed) 870,908 A 443,519 A 553,794 A U
Door open (dishes dry naturally) 433,076 A 197,931 M 291,900 M U
Don't know U U U U
Not stated 143,736 M 64,766 M 112,569 M U
Load of dishes washed by dishwasher during an average week
One or less 614,053 A 108,587 M 237,944 M U
Two to three 1,318,386 A 623,091 A 674,621 A 272,861 M
Four to seven 955,500 A 660,741 A 1,363,846 A U
More than seven U U 274,032 A U
Don't know U U U U
Not stated 161,032 M 79,435 M 112,363 M U

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