Residential Sector
Atlantic
Table 28: Water Heater Stock by Building Type and Energy Source
  1990   2011 2012 2013 2014 2015
Total Water Heater Stock (thousands) 818.7   1,055.2 1,066.0 1,085.8 1,090.7 1,098.6

Water Heater Stock by Building Type (thousands)
Single Detached 579.2   741.5 746.9 757.0 759.7 762.7
Single Attached 51.9   76.1 77.9 80.5 81.1 82.2
Apartments 154.6   197.5 200.7 207.5 208.9 212.5
Mobile Homes 33.0   40.2 40.4 40.9 41.0 41.1

Shares (%)
Single Detached 70.8   70.3 70.1 69.7 69.6 69.4
Single Attached 6.3   7.2 7.3 7.4 7.4 7.5
Apartments 18.9   18.7 18.8 19.1 19.2 19.3
Mobile Homes 4.0   3.8 3.8 3.8 3.8 3.7

Water Heater Stock by Energy Source (thousands)
Electricity 572.5   793.8 814.0 835.5 845.6 857.9
Natural Gas 0.6   11.6 13.7 14.8 15.9 17.3
Heating Oil 219.1   226.9 215.2 211.8 205.3 199.3
Steam 0.0   0.0 0.0 0.0 0.0 0.0
Other1 16.5   14.6 15.2 15.7 16.0 16.4
Wood 10.0   8.3 8.0 8.0 7.9 7.8

Shares (%)
Electricity 69.9   75.2 76.4 76.9 77.5 78.1
Natural Gas 0.1   1.1 1.3 1.4 1.5 1.6
Heating Oil 26.8   21.5 20.2 19.5 18.8 18.1
Steam 0.0   0.0 0.0 0.0 0.0 0.0
Other1 2.0   1.4 1.4 1.4 1.5 1.5
Wood 1.2   0.8 0.7 0.7 0.7 0.7

Footnotes:

1) “Other” includes coal and propane.