Residential Sector
Ontario
Table 21: Heating System Stock by Building Type and Heating System Type
  2000   2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011
Total Heating System Stock (thousands) 4,467.4   4,534.1 4,613.0 4,686.7 4,768.7 4,847.1 4,918.7 4,980.6 5,045.4 5,098.1 5,156.8 5,214.2

Heating System Stock by Building Type (thousands)
Single Detached 2,521.4   2,560.9 2,605.8 2,649.9 2,695.5 2,735.9 2,772.9 2,806.5 2,838.1 2,860.2 2,884.8 2,906.7
Single Attached 628.1   647.9 666.1 682.6 701.1 717.7 733.9 748.6 762.4 774.8 786.9 799.0
Apartments 1,293.0   1,300.5 1,316.2 1,329.2 1,346.9 1,368.1 1,386.4 1,399.9 1,419.2 1,437.4 1,459.2 1,482.7
Mobile Homes 24.9   24.8 24.9 25.0 25.2 25.4 25.5 25.6 25.7 25.8 25.8 25.9

Shares (%)
Single Detached 56.4   56.5 56.5 56.5 56.5 56.4 56.4 56.3 56.3 56.1 55.9 55.7
Single Attached 14.1   14.3 14.4 14.6 14.7 14.8 14.9 15.0 15.1 15.2 15.3 15.3
Apartments 28.9   28.7 28.5 28.4 28.2 28.2 28.2 28.1 28.1 28.2 28.3 28.4
Mobile Homes 0.6   0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5

Heating System Stock by Heating System Type (thousands)
Heating Oil – Normal Efficiency 153.8   123.6 89.8 65.1 47.6 38.7 27.2 14.9 8.1 3.4 0.0 0.0
Heating Oil – Medium Efficiency 210.0   227.1 230.1 235.9 245.9 250.8 250.1 249.3 248.5 247.3 245.0 241.6
Heating Oil – High Efficiency 0.0   0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Natural Gas – Normal Efficiency 1,355.8   1,275.9 1,188.7 1,092.9 987.8 877.4 764.6 652.3 544.8 438.8 341.8 249.3
Natural Gas – Medium Efficiency 869.0   930.7 997.9 1,055.3 1,108.6 1,152.8 1,190.9 1,224.0 1,240.5 1,247.4 1,236.5 1,221.2
Natural Gas – High Efficiency 694.1   778.3 884.1 988.9 1,106.4 1,225.0 1,356.2 1,476.4 1,603.5 1,724.3 1,858.4 1,988.1
Electric 673.2   673.2 678.5 683.7 690.5 700.3 713.0 726.5 744.9 764.3 785.8 806.9
Heat Pump 187.5   198.0 209.7 221.4 232.8 244.2 254.3 264.8 275.2 285.2 294.5 303.9
Other1 56.5   56.3 56.5 56.7 57.5 59.2 61.8 65.3 70.1 76.0 83.1 91.0
Wood 42.0   40.9 42.6 46.4 46.7 50.2 48.9 51.7 50.8 48.8 46.0 43.2

Dual Systems
Wood/Electric 100.3   102.1 104.1 106.1 107.7 109.2 110.3 111.6 112.9 114.3 115.4 116.5
Wood/Heating Oil 91.4   93.1 94.9 96.8 98.3 99.6 100.7 101.9 103.1 104.4 105.4 106.5
Natural Gas/Electric 20.5   21.2 22.0 22.8 23.6 24.3 24.9 25.6 26.3 27.0 27.6 28.2
Heating Oil/Electric 13.3   13.8 14.2 14.7 15.1 15.5 15.9 16.3 16.7 17.1 17.4 17.7

Shares (%)
Heating Oil – Normal Efficiency 3.4   2.7 1.9 1.4 1.0 0.8 0.6 0.3 0.2 0.1 0.0 0.0
Heating Oil – Medium Efficiency 4.7   5.0 5.0 5.0 5.2 5.2 5.1 5.0 4.9 4.9 4.8 4.6
Heating Oil – High Efficiency 0.0   0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Natural Gas – Normal Efficiency 30.3   28.1 25.8 23.3 20.7 18.1 15.5 13.1 10.8 8.6 6.6 4.8
Natural Gas – Medium Efficiency 19.5   20.5 21.6 22.5 23.2 23.8 24.2 24.6 24.6 24.5 24.0 23.4
Natural Gas – High Efficiency 15.5   17.2 19.2 21.1 23.2 25.3 27.6 29.6 31.8 33.8 36.0 38.1
Electric 15.1   14.8 14.7 14.6 14.5 14.4 14.5 14.6 14.8 15.0 15.2 15.5
Heat Pump 4.2   4.4 4.5 4.7 4.9 5.0 5.2 5.3 5.5 5.6 5.7 5.8
Other1 1.3   1.2 1.2 1.2 1.2 1.2 1.3 1.3 1.4 1.5 1.6 1.7
Wood 0.9   0.9 0.9 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.9 0.8

Dual Systems
Wood/Electric 2.2   2.3 2.3 2.3 2.3 2.3 2.2 2.2 2.2 2.2 2.2 2.2
Wood/Heating Oil 2.0   2.1 2.1 2.1 2.1 2.1 2.0 2.0 2.0 2.0 2.0 2.0
Natural Gas/Electric 0.5   0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5
Heating Oil/Electric 0.3   0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3

Footnotes:

1) “Other” includes coal and propane.