Residential Sector
Alberta
Table 24: Apartments Heating System Stock by Heating System Type
  1990   2015 2016
Total Apartments Heating System Stock (thousands) 220.4   356.3 363.1

Heating System Stock by Heating System Type (thousands)
Heating Oil – Normal Efficiency 3.4   0.2 0.1
Heating Oil – Medium Efficiency 0.1   2.4 2.5
Heating Oil – High Efficiency 0.0   0.0 0.0
Natural Gas – Normal Efficiency 192.4   2.0 0.0
Natural Gas – Medium Efficiency 13.0   167.2 162.1
Natural Gas – High Efficiency 0.0   158.8 172.2
Electric 3.6   15.5 15.7
Heat Pump 1.1   1.9 2.0
Other1 4.7   4.1 4.2
Wood 1.2   0.9 1.0

Dual Systems
Wood/Electric 0.0   0.0 0.0
Wood/Heating Oil 0.0   0.0 0.0
Natural Gas/Electric 0.8   3.2 3.3
Heating Oil/Electric 0.0   0.0 0.0

Shares (%)
Heating Oil – Normal Efficiency 1.5   0.0 0.0
Heating Oil – Medium Efficiency 0.1   0.7 0.7
Heating Oil – High Efficiency 0.0   0.0 0.0
Natural Gas – Normal Efficiency 87.3   0.6 0.0
Natural Gas – Medium Efficiency 5.9   46.9 44.6
Natural Gas – High Efficiency 0.0   44.6 47.4
Electric 1.7   4.3 4.3
Heat Pump 0.5   0.5 0.5
Other1 2.2   1.2 1.2
Wood 0.5   0.3 0.3

Dual Systems
Wood/Electric 0.0   0.0 0.0
Wood/Heating Oil 0.0   0.0 0.0
Natural Gas/Electric 0.4   0.9 0.9
Heating Oil/Electric 0.0   0.0 0.0

Footnotes:

1) “Other” includes coal and propane.