Residential Sector
Nova Scotia
Table 27: Cooling System Stock by Type, New Unit Efficiencies, Stock Efficiencies and Unit Capacity Ratio
  1990   1991 1992 1993 1994 1995 1996
Total Cooling System Stock (thousands) 14.6   12.0 10.3 12.8 14.7 11.7 14.6

System Stock by Type (thousands)
Room 10.7   4.8 5.5 7.7 11.1 7.8 6.8
Central 3.9   7.2 4.9 5.1 3.6 3.9 7.8

Shares (%)
Room 73.3   40.1 52.9 59.9 75.6 66.7 46.7
Central 26.7   59.9 47.1 40.1 24.4 33.3 53.3

New Unit Efficiencies
Room (EER)1 7.1   7.2 8.4 8.4 9.1 9.2 9.4
Central (SEER)2 9.1   9.3 9.6 9.7 10.2 10.2 10.3

Stock Efficiencies
Room (EER)1 6.8   6.9 6.9 7.0 7.2 7.4 7.6
Central (SEER)2 8.6   8.7 8.8 8.9 9.1 9.2 9.3

Unit Capacity Ratio (Btu/hour)
Room 10,114   10,109 10,110 10,080 10,086 10,021 10,025
Central 32,356   32,342 32,283 32,234 32,407 32,636 32,857

Footnotes:

1) Energy Efficiency Ratio.
2) Seasonal Energy Efficiency Ratio.