Residential Sector
Ontario
Table 22: Single Detached Heating System Stock by Heating System Type
  1990   2011 2012 2013 2014 2015
Total Single Detached Heating System Stock (thousands) 2,142.0   2,904.0 2,927.4 2,970.1 2,990.5 3,014.1

Heating System Stock by Heating System Type (thousands)
Heating Oil – Normal Efficiency 260.3   0.0 0.0 0.0 0.0 0.0
Heating Oil – Medium Efficiency 10.3   115.0 112.8 109.5 103.8 97.6
Heating Oil – High Efficiency 0.0   0.0 0.0 0.0 0.0 0.0
Natural Gas – Normal Efficiency 1,066.8   78.1 41.0 0.0 0.0 0.0
Natural Gas – Medium Efficiency 53.5   470.0 459.5 444.8 419.1 390.1
Natural Gas – High Efficiency 111.6   392.1 434.4 499.1 549.5 602.5
Electric 363.6   1,336.0 1,353.2 1,375.4 1,371.0 1,368.2
Heat Pump 88.3   251.4 260.7 271.3 276.7 283.4
Other1 13.1   17.0 17.2 17.4 17.3 17.3
Wood 0.0   0.0 0.0 0.0 0.0 0.0

Dual Systems
Wood/Electric 82.9   110.5 112.1 113.7 113.8 114.5
Wood/Heating Oil 73.3   99.1 100.6 102.1 102.2 102.8
Natural Gas/Electric 11.1   21.6 22.1 22.7 22.9 23.2
Heating Oil/Electric 7.3   13.4 13.7 14.1 14.2 14.4

Shares (%)
Heating Oil – Normal Efficiency 12.2   0.0 0.0 0.0 0.0 0.0
Heating Oil – Medium Efficiency 0.5   4.0 3.9 3.7 3.5 3.2
Heating Oil – High Efficiency 0.0   0.0 0.0 0.0 0.0 0.0
Natural Gas – Normal Efficiency 49.8   2.7 1.4 0.0 0.0 0.0
Natural Gas – Medium Efficiency 2.5   16.2 15.7 15.0 14.0 12.9
Natural Gas – High Efficiency 5.2   13.5 14.8 16.8 18.4 20.0
Electric 17.0   46.0 46.2 46.3 45.8 45.4
Heat Pump 4.1   8.7 8.9 9.1 9.3 9.4
Other1 0.6   0.6 0.6 0.6 0.6 0.6
Wood 0.0   0.0 0.0 0.0 0.0 0.0

Dual Systems
Wood/Electric 3.9   3.8 3.8 3.8 3.8 3.8
Wood/Heating Oil 3.4   3.4 3.4 3.4 3.4 3.4
Natural Gas/Electric 0.5   0.7 0.8 0.8 0.8 0.8
Heating Oil/Electric 0.3   0.5 0.5 0.5 0.5 0.5

Footnotes:

1) “Other” includes coal and propane.