Residential Sector
Ontario
Table 26: Heating System Stock Efficiencies
  1990   2010 2011 2012 2013 2014 2015
Heating System Stock Efficiencies by System Type (%)
Heating Oil – Normal Efficiency 60   60 60 60 60 60 60
Heating Oil – Medium Efficiency 75   78 78 78 78 78 78
Heating Oil – High Efficiency 85   85 85 85 85 85 85
Natural Gas – Normal Efficiency 62   62 62 62 62 62 62
Natural Gas – Medium Efficiency 78   80 80 80 80 80 80
Natural Gas – High Efficiency 90   90 90 90 90 90 90
Electric 100   100 100 100 100 100 100
Heat Pump 190   190 190 190 190 190 190
Other1 50   50 50 50 50 50 50
Wood 50   50 50 50 50 50 50

Dual Heating Systems Electric/Wood
Electricity 100   100 100 100 100 100 100
Wood 50   50 50 50 50 50 50

Dual Heating Systems Heating Oil/Wood
Heating Oil 75   78 78 78 78 78 78
Wood 50   57 57 57 57 57 57

Dual Heating Systems Electric/Natural Gas
Electricity 100   100 100 100 100 100 100
Natural Gas 78   80 80 80 80 80 80

Dual Heating Systems Electric/Heating Oil
Electricity 100   100 100 100 100 100 100
Heating Oil 75   78 78 78 78 78 78

Footnotes:

1) “Other” includes coal and propane.