2000 | 2018 | 2019 | 2020 | 2021 | ||
---|---|---|---|---|---|---|
Total Single Attached Heating System Stock (thousands) | 28.8 | 39.2 | 40.4 | 41.5 | 42.7 | |
Heating System Stock by Heating System Type (thousands) | ||||||
Heating Oil – Normal Efficiency | 0.3 | 0.0 | 0.0 | 0.0 | 0.0 | |
Heating Oil – Medium Efficiency | 0.4 | 0.4 | 0.3 | 0.3 | 0.2 | |
Heating Oil – High Efficiency | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | |
Natural Gas – Normal Efficiency | 8.0 | 0.0 | 0.0 | 0.0 | 0.0 | |
Natural Gas – Medium Efficiency | 4.7 | 4.3 | 3.9 | 3.5 | 3.1 | |
Natural Gas – High Efficiency | 3.9 | 16.9 | 17.9 | 18.9 | 19.9 | |
Electric | 9.6 | 15.7 | 16.2 | 16.7 | 17.2 | |
Heat Pump | 0.6 | 1.6 | 1.7 | 1.7 | 1.8 | |
Other1 | 0.3 | 0.2 | 0.2 | 0.2 | 0.2 | |
Wood | 1.0 | 0.3 | 0.3 | 0.2 | 0.2 | |
Dual Systems | ||||||
Wood/Electric | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | |
Wood/Heating Oil | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | |
Natural Gas/Electric | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | |
Heating Oil/Electric | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | |
Shares (%) | ||||||
Heating Oil – Normal Efficiency | 1.1 | 0.0 | 0.0 | 0.0 | 0.0 | |
Heating Oil – Medium Efficiency | 1.3 | 0.9 | 0.8 | 0.7 | 0.5 | |
Heating Oil – High Efficiency | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | |
Natural Gas – Normal Efficiency | 27.9 | 0.0 | 0.0 | 0.0 | 0.0 | |
Natural Gas – Medium Efficiency | 16.4 | 10.9 | 9.6 | 8.4 | 7.3 | |
Natural Gas – High Efficiency | 13.5 | 43.1 | 44.4 | 45.6 | 46.7 | |
Electric | 33.1 | 39.9 | 40.0 | 40.2 | 40.3 | |
Heat Pump | 2.1 | 4.0 | 4.1 | 4.2 | 4.3 | |
Other1 | 1.0 | 0.4 | 0.4 | 0.4 | 0.4 | |
Wood | 3.6 | 0.7 | 0.6 | 0.6 | 0.6 | |
Dual Systems | ||||||
Wood/Electric | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | |
Wood/Heating Oil | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | |
Natural Gas/Electric | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | |
Heating Oil/Electric | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |