Residential Sector
Canada
Table 11: Space Heating GHG Emissions by System Type – Including Electricity-Related Emissions
  1990   1991 1992 1993 1994 1995 1996 1997 1998
Total Space Heating GHG Emissions Including Electricity (Mt of CO2e) 47.0   45.4 47.6 48.4 48.5 46.8 50.8 48.7 43.5

GHG Emissions by System Type (Mt of CO2e)
Heating Oil – Normal Efficiency 9.9   8.5 8.5 8.2 7.1 5.4 5.6 4.3 3.0
Heating Oil – Medium Efficiency 0.2   0.3 0.5 1.0 1.5 1.7 2.5 2.9 2.9
Heating Oil – High Efficiency 0.0   0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Natural Gas – Normal Efficiency 18.8   18.5 18.4 18.6 18.3 17.6 18.5 16.3 13.2
Natural Gas – Medium Efficiency 0.9   1.1 2.0 2.9 3.8 4.5 5.7 5.8 5.6
Natural Gas – High Efficiency 0.9   1.1 1.3 1.6 1.9 2.1 2.5 2.7 2.4
Electric 7.3   7.2 8.3 7.4 7.2 7.1 7.4 8.2 7.8
Heat Pump 0.4   0.4 0.5 0.5 0.5 0.5 0.5 0.5 0.6
Other1 1.2   1.2 1.1 0.8 0.8 0.8 0.8 0.8 0.7
Wood 0.9   0.9 0.9 1.0 1.1 1.0 1.1 0.9 0.9

Dual Systems
Wood/Electric 4.0   3.8 3.7 3.8 3.8 3.7 3.5 3.6 3.8
Wood/Heating Oil 1.9   1.7 1.7 1.8 1.8 1.6 1.7 1.8 1.6
Natural Gas/Electric 0.1   0.1 0.1 0.2 0.2 0.2 0.1 0.2 0.2
Heating Oil/Electric 0.5   0.5 0.6 0.7 0.7 0.6 0.8 0.8 0.7

Shares (%)
Heating Oil – Normal Efficiency 21.0   18.8 17.9 16.9 14.7 11.5 11.0 8.8 6.9
Heating Oil – Medium Efficiency 0.4   0.6 1.0 2.1 3.1 3.6 5.0 5.9 6.6
Heating Oil – High Efficiency 0.0   0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Natural Gas – Normal Efficiency 40.0   40.8 38.6 38.4 37.8 37.6 36.3 33.5 30.4
Natural Gas – Medium Efficiency 1.9   2.4 4.2 6.0 7.8 9.7 11.3 12.0 12.8
Natural Gas – High Efficiency 2.0   2.4 2.8 3.4 3.9 4.5 5.0 5.5 5.6
Electric 15.6   15.8 17.3 15.2 14.8 15.2 14.7 16.8 18.0
Heat Pump 0.9   0.9 1.1 1.0 1.0 1.0 1.0 1.1 1.4
Other1 2.5   2.7 2.3 1.6 1.6 1.7 1.6 1.7 1.7
Wood 1.8   2.0 1.8 2.0 2.2 2.1 2.2 1.8 2.1

Dual Systems
Wood/Electric 8.5   8.5 7.8 7.8 7.8 7.9 6.9 7.3 8.7
Wood/Heating Oil 4.1   3.7 3.6 3.7 3.6 3.4 3.3 3.7 3.8
Natural Gas/Electric 0.2   0.2 0.3 0.3 0.3 0.4 0.3 0.4 0.4
Heating Oil/Electric 1.2   1.1 1.3 1.4 1.4 1.3 1.5 1.6 1.6
GHG Intensity (tonne/TJ) 49.1   48.4 49.2 47.8 47.1 47.3 47.6 48.5 48.5
Heat Gains (PJ) 89.8   89.1 95.4 96.0 95.2 94.1 99.5 94.9 81.8
Heating Degree-Day Index 0.92   0.93 0.99 1.01 0.98 0.98 1.04 0.98 0.84

Footnotes:

1) “Other” includes coal and propane.