2000 | 2018 | 2019 | 2020 | 2021 | ||
---|---|---|---|---|---|---|
Total Single Attached Heating System Stock (thousands) | 15.5 | 24.3 | 24.8 | 25.2 | 25.6 | |
Heating System Stock by Heating System Type (thousands) | ||||||
Heating Oil – Normal Efficiency | 1.5 | 0.0 | 0.0 | 0.0 | 0.0 | |
Heating Oil – Medium Efficiency | 1.9 | 2.5 | 2.3 | 2.1 | 2.0 | |
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 | 0.1 | 0.1 | 0.1 | 0.1 | 0.0 | |
Natural Gas – High Efficiency | 0.1 | 0.6 | 0.7 | 0.7 | 0.8 | |
Electric | 8.4 | 17.0 | 17.5 | 17.9 | 18.3 | |
Heat Pump | 0.4 | 1.1 | 1.2 | 1.3 | 1.3 | |
Other1 | 0.1 | 0.3 | 0.3 | 0.3 | 0.3 | |
Wood | 2.6 | 2.3 | 2.3 | 2.3 | 2.4 | |
Dual Systems | ||||||
Wood/Electric | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | |
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 | 9.6 | 0.0 | 0.0 | 0.0 | 0.0 | |
Heating Oil – Medium Efficiency | 12.4 | 10.2 | 9.4 | 8.5 | 7.6 | |
Heating Oil – High Efficiency | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | |
Natural Gas – Normal Efficiency | 0.3 | 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 | 2.7 | 2.8 | 2.9 | 3.1 | |
Electric | 54.2 | 69.9 | 70.6 | 71.2 | 71.7 | |
Heat Pump | 2.5 | 4.7 | 4.8 | 5.0 | 5.2 | |
Other1 | 0.3 | 1.3 | 1.3 | 1.2 | 1.2 | |
Wood | 16.9 | 9.2 | 9.2 | 9.3 | 9.5 | |
Dual Systems | ||||||
Wood/Electric | 1.1 | 0.7 | 0.7 | 0.7 | 0.7 | |
Wood/Heating Oil | 1.5 | 1.0 | 0.9 | 0.9 | 0.9 | |
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 |