2000 | 2018 | 2019 | 2020 | 2021 | ||
---|---|---|---|---|---|---|
Total Single Attached Heating System Stock (thousands) | 23.8 | 32.6 | 33.1 | 33.7 | 34.3 | |
Heating System Stock by Heating System Type (thousands) | ||||||
Heating Oil – Normal Efficiency | 6.4 | 0.0 | 0.0 | 0.0 | 0.0 | |
Heating Oil – Medium Efficiency | 6.8 | 10.5 | 10.5 | 10.4 | 10.4 | |
Heating Oil – High Efficiency | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | |
Natural Gas – Normal Efficiency | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | |
Natural Gas – Medium Efficiency | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | |
Natural Gas – High Efficiency | 0.1 | 0.8 | 0.8 | 0.9 | 0.9 | |
Electric | 5.6 | 15.3 | 15.7 | 16.3 | 16.7 | |
Heat Pump | 0.9 | 2.2 | 2.3 | 2.4 | 2.5 | |
Other1 | 0.5 | 0.7 | 0.7 | 0.8 | 0.8 | |
Wood | 2.4 | 2.0 | 1.9 | 1.9 | 1.9 | |
Dual Systems | ||||||
Wood/Electric | 0.7 | 0.8 | 0.8 | 0.8 | 0.8 | |
Wood/Heating Oil | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | |
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 | 26.9 | 0.0 | 0.0 | 0.0 | 0.0 | |
Heating Oil – Medium Efficiency | 28.6 | 32.1 | 31.7 | 30.7 | 30.3 | |
Heating Oil – High Efficiency | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | |
Natural Gas – Normal Efficiency | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 | |
Natural Gas – Medium Efficiency | 0.5 | 0.3 | 0.3 | 0.2 | 0.2 | |
Natural Gas – High Efficiency | 0.6 | 2.3 | 2.5 | 2.7 | 2.8 | |
Electric | 23.7 | 47.0 | 47.4 | 48.3 | 48.6 | |
Heat Pump | 3.8 | 6.8 | 6.9 | 7.0 | 7.2 | |
Other1 | 2.0 | 2.2 | 2.2 | 2.3 | 2.4 | |
Wood | 10.2 | 6.0 | 5.8 | 5.6 | 5.5 | |
Dual Systems | ||||||
Wood/Electric | 2.7 | 2.5 | 2.4 | 2.4 | 2.4 | |
Wood/Heating Oil | 0.8 | 0.7 | 0.7 | 0.7 | 0.7 | |
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 |