2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | ||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Total Single Detached Water Heater Stock (thousands) | 2,521.4 | 2,560.9 | 2,605.8 | 2,649.9 | 2,695.5 | 2,735.9 | 2,772.9 | 2,806.5 | 2,838.1 | 2,860.2 | 2,884.8 | 2,906.7 | |
Water Heater Stock by Energy Source (thousands) | |||||||||||||
Electricity | 746.5 | 731.5 | 727.7 | 727.4 | 718.8 | 707.5 | 702.7 | 698.9 | 712.5 | 719.3 | 722.1 | 729.9 | |
Natural Gas | 1,675.6 | 1,723.6 | 1,777.3 | 1,818.7 | 1,869.9 | 1,923.6 | 1,958.0 | 1,990.1 | 2,010.4 | 2,020.8 | 2,046.9 | 2,064.7 | |
Heating Oil | 74.8 | 77.6 | 72.7 | 72.1 | 74.1 | 71.5 | 75.2 | 77.3 | 76.6 | 79.5 | 76.3 | 71.0 | |
Steam | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | |
Other1 | 9.9 | 11.5 | 11.4 | 12.9 | 13.3 | 13.5 | 15.1 | 16.7 | 16.8 | 18.8 | 20.1 | 22.9 | |
Wood | 14.5 | 16.8 | 16.7 | 18.8 | 19.4 | 19.8 | 22.0 | 23.5 | 21.8 | 21.7 | 19.4 | 18.2 | |
Shares (%) | |||||||||||||
Electricity | 29.6 | 28.6 | 27.9 | 27.4 | 26.7 | 25.9 | 25.3 | 24.9 | 25.1 | 25.1 | 25.0 | 25.1 | |
Natural Gas | 66.5 | 67.3 | 68.2 | 68.6 | 69.4 | 70.3 | 70.6 | 70.9 | 70.8 | 70.7 | 71.0 | 71.0 | |
Heating Oil | 3.0 | 3.0 | 2.8 | 2.7 | 2.7 | 2.6 | 2.7 | 2.8 | 2.7 | 2.8 | 2.6 | 2.4 | |
Steam | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | |
Other1 | 0.4 | 0.4 | 0.4 | 0.5 | 0.5 | 0.5 | 0.5 | 0.6 | 0.6 | 0.7 | 0.7 | 0.8 | |
Wood | 0.6 | 0.7 | 0.6 | 0.7 | 0.7 | 0.7 | 0.8 | 0.8 | 0.8 | 0.8 | 0.7 | 0.6 | |
Total Single Attached Water Heater Stock (thousands) | 628.1 | 647.9 | 666.1 | 682.6 | 701.1 | 717.7 | 733.9 | 748.6 | 762.4 | 774.8 | 786.9 | 799.0 | |
Water Heater Stock by Energy Source (thousands) | |||||||||||||
Electricity | 186.0 | 185.1 | 186.0 | 187.4 | 187.0 | 185.6 | 186.0 | 186.4 | 191.4 | 194.9 | 197.0 | 200.6 | |
Natural Gas | 417.4 | 436.1 | 454.4 | 468.5 | 486.4 | 504.6 | 518.2 | 530.8 | 540.1 | 547.5 | 558.4 | 567.5 | |
Heating Oil | 18.6 | 19.6 | 18.6 | 18.6 | 19.3 | 18.8 | 19.9 | 20.6 | 20.6 | 21.5 | 20.8 | 19.5 | |
Steam | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | |
Other1 | 2.5 | 2.9 | 2.9 | 3.3 | 3.5 | 3.6 | 4.0 | 4.5 | 4.5 | 5.1 | 5.5 | 6.3 | |
Wood | 3.6 | 4.2 | 4.3 | 4.8 | 5.0 | 5.2 | 5.8 | 6.3 | 5.8 | 5.9 | 5.3 | 5.0 | |
Shares (%) | |||||||||||||
Electricity | 29.6 | 28.6 | 27.9 | 27.4 | 26.7 | 25.9 | 25.3 | 24.9 | 25.1 | 25.1 | 25.0 | 25.1 | |
Natural Gas | 66.5 | 67.3 | 68.2 | 68.6 | 69.4 | 70.3 | 70.6 | 70.9 | 70.8 | 70.7 | 71.0 | 71.0 | |
Heating Oil | 3.0 | 3.0 | 2.8 | 2.7 | 2.7 | 2.6 | 2.7 | 2.8 | 2.7 | 2.8 | 2.6 | 2.4 | |
Steam | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | |
Other1 | 0.4 | 0.4 | 0.4 | 0.5 | 0.5 | 0.5 | 0.5 | 0.6 | 0.6 | 0.7 | 0.7 | 0.8 | |
Wood | 0.6 | 0.7 | 0.6 | 0.7 | 0.7 | 0.7 | 0.8 | 0.8 | 0.8 | 0.8 | 0.7 | 0.6 |