Residential Sector
Alberta
Table 21: Heating System Stock by Building Type and Heating System Type
  1990   2012 2013 2014 2015
Total Heating System Stock (thousands) 956.9   1,542.4 1,612.9 1,656.4 1,689.3

Heating System Stock by Building Type (thousands)
Single Detached 589.8   961.6 994.7 1,012.6 1,021.3
Single Attached 106.4   191.3 207.3 218.0 225.2
Apartments 220.5   321.3 340.3 353.8 370.2
Mobile Homes 40.2   68.2 70.6 71.9 72.6

Shares (%)
Single Detached 61.6   62.3 61.7 61.1 60.5
Single Attached 11.1   12.4 12.9 13.2 13.3
Apartments 23.0   20.8 21.1 21.4 21.9
Mobile Homes 4.2   4.4 4.4 4.3 4.3

Heating System Stock by Heating System Type (thousands)
Heating Oil – Normal Efficiency 12.6   0.6 0.5 0.4 0.3
Heating Oil – Medium Efficiency 0.7   4.1 4.9 5.5 5.9
Heating Oil – High Efficiency 0.0   0.0 0.0 0.0 0.0
Natural Gas – Normal Efficiency 814.7   58.8 35.4 14.5 4.5
Natural Gas – Medium Efficiency 75.1   492.4 481.3 465.3 442.8
Natural Gas – High Efficiency 0.0   159.8 221.3 270.5 324.1
Electric 15.3   766.1 805.6 833.7 843.6
Heat Pump 7.8   34.0 36.3 38.0 39.2
Other1 20.6   10.0 10.5 10.9 11.0
Wood 3.5   0.8 0.8 0.9 0.9

Dual Systems
Wood/Electric 1.2   2.1 2.1 2.2 2.2
Wood/Heating Oil 4.1   7.1 7.3 7.4 7.5
Natural Gas/Electric 1.4   6.6 6.8 7.0 7.2
Heating Oil/Electric 0.0   0.1 0.1 0.1 0.1

Shares (%)
Heating Oil – Normal Efficiency 1.3   0.0 0.0 0.0 0.0
Heating Oil – Medium Efficiency 0.1   0.3 0.3 0.3 0.3
Heating Oil – High Efficiency 0.0   0.0 0.0 0.0 0.0
Natural Gas – Normal Efficiency 85.1   3.8 2.2 0.9 0.3
Natural Gas – Medium Efficiency 7.9   31.9 29.8 28.1 26.2
Natural Gas – High Efficiency 0.0   10.4 13.7 16.3 19.2
Electric 1.6   49.7 49.9 50.3 49.9
Heat Pump 0.8   2.2 2.3 2.3 2.3
Other1 2.2   0.6 0.7 0.7 0.7
Wood 0.4   0.0 0.1 0.1 0.1

Dual Systems
Wood/Electric 0.1   0.1 0.1 0.1 0.1
Wood/Heating Oil 0.4   0.5 0.5 0.4 0.4
Natural Gas/Electric 0.1   0.4 0.4 0.4 0.4
Heating Oil/Electric 0.0   0.0 0.0 0.0 0.0

Footnotes:

1) “Other” includes coal and propane.