Residential Sector
Canada
Table 33: Cooling System Stock by Type, New Unit Efficiencies, Stock Efficiencies and Unit Capacity Ratio
  1990   2011 2012 2013 2014 2015
Total Cooling System Stock (thousands) 2,438   7,306 7,694 8,129 8,570 9,123

System Stock by Type (thousands)
Room 1,067   2,606 2,825 3,053 3,297 3,554
Central 1,371   4,700 4,869 5,076 5,273 5,569

Shares (%)
Room 43.8   35.7 36.7 37.6 38.5 39.0
Central 56.2   64.3 63.3 62.4 61.5 61.0

New Unit Efficiencies
Room (EER)1 7.1   12.0 12.0 12.0 12.0 12.0
Central (SEER)2 9.1   13.0 13.0 13.0 13.0 13.0

Stock Efficiencies
Room (EER)1 6.8   10.6 10.8 11.0 11.2 11.3
Central (SEER)2 8.6   11.2 11.4 11.6 11.7 11.9

Unit Capacity Ratio (Btu/hour)
Room 10,114   9,103 9,108 9,113 9,120 9,126
Central 32,356   33,271 33,278 33,284 33,290 33,303