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Annual Energy Review

September 2012  PDF | previous editions
Release Date: September 27, 2012

Table 2.7 Type of Heating in Occupied Housing Units, 1950-2009
Table 2.7  Type of Heating in Occupied Housing Units, 1950-2009


Year

Coal 1
Distillate
Fuel Oil

Kerosene		 Liquefied
Petroleum
Gases
Natural
Gas

Electricity

Wood

Solar

Other 2

None 3

Total
  Million Occupied Housing Units
1950 14.48 9.46 [4] 0.98 11.12 0.28 4.17 NA 0.77 1.57 42.83
1960 6.46 17.16 [4] 2.69 22.85 .93 2.24 NA .22 .48 53.02
1970 1.82 16.47 [4] 3.81 35.01 4.88 .79 NA .27 .40 63.45
1973 .80 17.24 [4] 4.42 38.46 7.21 .60 NA .15 .45 69.34
1974 .74 16.84 [4] 4.14 39.47 8.41 .66 NA .09 .48 70.83
1975 .57 16.30 [4] 4.15 40.93 9.17 .85 NA .08 .47 72.52
1976 .48 16.45 [4] 4.24 41.22 10.15 .91 NA .09 .46 74.01
1977 .45 15.62 .44 4.18 41.54 11.15 1.24 NA .15 .51 75.28
1978 .40 15.65 .42 4.13 42.52 12.26 1.07 NA .12 .60 77.17
1979 .36 15.30 .41 4.13 43.32 13.24 1.14 NA .10 .57 78.57
1980 .33 14.50 .37 4.17 44.40 14.21 1.38 NA .11 .61 80.07
1981 .36 14.13 .37 4.17 46.08 15.49 1.89 NA .10 .59 83.18
1983 5 .43 12.59 .45 3.87 46.70 15.68 4.09 NA .16 .68 84.64
1985 .45 12.44 1.06 3.58 45.33 18.36 6.25 .05 .37 .53 88.43
1987 .41 12.74 1.08 3.66 45.96 20.61 5.45 .05 .28 .66 90.89
1989 .34 12.47 1.07 3.66 47.40 23.06 4.59 .04 .40 .66 93.68
1991 .32 11.47 .99 3.88 47.02 23.71 4.44 .03 .41 .86 93.15
1993 .30 11.17 1.02 3.92 47.67 25.11 4.10 .03 .50 .91 94.73
1995 .21 10.98 1.06 4.25 49.20 26.77 3.53 .02 .64 1.04 97.69
1997 .18 10.10 .75 5.40 51.05 29.20 1.79 .03 .36 .62 99.49
1999 .17 10.03 .72 5.91 52.37 31.14 1.70 .02 .21 .54 102.80
2001 6 .13 9.81 .65 6.04 54.13 32.41 1.67 .02 .19 .39 105.44
2003 .13 9.50 .64 6.13 54.93 32.34 1.56 .02 .16 .44 105.84
2005 .10 9.38 .55 6.23 56.32 34.26 1.41 .02 .21 .40 108.87
2007 .09 8.74 .57 6.10 56.68 36.08 1.47 .02 .46 .48 110.69
2009 .10 8.21 .60 5.82 56.81 37.85 1.78 .01 .24 .38 111.81
  Percent
1950 33.8 22.1 [4] 2.3 26.0 0.6 9.7 NA 1.8 3.7 100.0
1960 12.2 32.4 [4] 5.1 43.1 1.8 4.2 NA .4 .9 100.0
1970 2.9 26.0 [4] 6.0 55.2 7.7 1.3 NA .4 .6 100.0
1973 1.2 24.9 [4] 6.4 55.5 10.4 .9 NA .2 .7 100.0
1974 1.0 23.8 [4] 5.8 55.7 11.9 .9 NA .1 .7 100.0
1975 .8 22.5 [4] 5.7 56.4 12.6 1.2 NA .1 .6 100.0
1976 .7 22.2 [4] 5.7 55.7 13.7 1.2 NA .1 .6 100.0
1977 .6 20.7 .6 5.6 55.2 14.8 1.6 NA .2 .7 100.0
1978 .5 20.3 .5 5.4 55.1 15.9 1.4 NA .2 .8 100.0
1979 .5 19.5 .5 5.3 55.1 16.9 1.4 NA .1 .7 100.0
1980 .4 18.1 .5 5.2 55.4 17.7 1.7 NA .1 .8 100.0
1981 .4 17.0 .4 5.0 55.4 18.6 2.3 NA .1 .7 100.0
1983 5 .5 14.9 .5 4.6 55.2 18.5 4.8 NA .2 .8 100.0
1985 .5 14.1 1.2 4.1 51.3 20.8 7.1 .1 .4 .6 100.0
1987 .4 14.0 1.2 4.0 50.6 22.7 6.0 .1 .3 .7 100.0
1989 .4 13.3 1.1 3.9 50.6 24.6 4.9 (s) .4 .7 100.0
1991 .3 12.3 1.1 4.2 50.5 25.5 4.8 (s) .4 .9 100.0
1993 .3 11.8 1.1 4.1 50.3 26.5 4.3 (s) .5 1.0 100.0
1995 .2 11.2 1.1 4.4 50.4 27.4 3.6 (s) .7 1.1 100.0
1997 .2 10.2 .8 5.4 51.3 29.4 1.8 (s) .4 .6 100.0
1999 .2 9.8 .7 5.7 50.9 30.3 1.7 (s) .2 .5 100.0
2001 6 .1 9.3 .6 5.7 51.3 30.7 1.6 (s) .2 .4 100.0
2003 .1 9.0 .6 5.8 51.9 30.6 1.5 (s) .1 .4 100.0
2005 .1 8.6 .5 5.7 51.7 31.5 1.3 (s) .2 .4 100.0
2007 .1 7.9 .5 5.5 51.2 32.6 1.3 (s) .4 .4 100.0
2009 .1 7.3 .5 5.2 50.8 33.9 1.6 (s) .2 .3 100.0
1Includes coal coke. 6Beginning in 2001, data are consistent with the 2000 Census.  For 2001 data consistent with the 1990
Census, see American Housing Survey for the United States: 2001.
2Includes briquettes (made of pitch and sawdust), coal dust, waste material (such as corncobs),
purchased steam, and other fuels not separately displayed.		 NA=Not available.  (s)=Less than 0.05 percent.  
3In 1950 and 1960, also includes nonreporting units, which totaled 997 and 2,000 units, respectively. Notes:  ·  Includes mobile homes and individual housing units in apartment buildings.  Housing units with
more than one type of heating system are classified according to the principal type of heating system.
·  Totals may not equal sum of components due to independent rounding.
4Included in "Distillate Fuel Oil." Web Page:  For related information, see http://www.census.gov/hhes/www/housing/ahs/ahs.html.
5Beginning in 1983, the American Housing Survey for the United States has been a biennial survey. Sources:  ·  1950, 1960, and 1970—Bureau of the Census, Census of Population and Housing.
·  1973-1981—Bureau of the Census, American Housing Survey for the United States, annual surveys,
Table 2-5.  ·  1983 forward—Bureau of the Census, American Housing Survey for the United States,
biennial surveys, Table 2-5.
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