| 2000 | 2018 | 2019 | 2020 | 2021 | ||
|---|---|---|---|---|---|---|
| Total Mobile Homes Heating System Stock (thousands) | 24.9 | 26.6 | 26.7 | 26.8 | 26.9 | |
Heating System Stock by Heating System Type (thousands) | ||||||
| Heating Oil – Normal Efficiency | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | |
| Heating Oil – Medium Efficiency | 1.3 | 0.9 | 0.8 | 0.7 | 0.6 | |
| Heating Oil – High Efficiency | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | |
| Natural Gas – Normal Efficiency | 10.9 | 0.0 | 0.0 | 0.0 | 0.0 | |
| Natural Gas – Medium Efficiency | 4.9 | 15.8 | 15.9 | 15.9 | 16.0 | |
| Natural Gas – High Efficiency | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | |
| Electric | 3.6 | 4.1 | 4.1 | 4.1 | 4.1 | |
| Heat Pump | 0.4 | 0.7 | 0.7 | 0.8 | 0.8 | |
| Other1 | 0.3 | 0.7 | 0.8 | 0.8 | 0.8 | |
| Wood | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | |
Dual Systems | ||||||
| Wood/Electric | 1.0 | 1.2 | 1.3 | 1.3 | 1.3 | |
| Wood/Heating Oil | 2.2 | 2.7 | 2.7 | 2.8 | 2.8 | |
| Natural Gas/Electric | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | |
| Heating Oil/Electric | 0.3 | 0.4 | 0.4 | 0.4 | 0.4 | |
Shares (%) | ||||||
| Heating Oil – Normal Efficiency | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | |
| Heating Oil – Medium Efficiency | 5.1 | 3.5 | 3.1 | 2.6 | 2.2 | |
| Heating Oil – High Efficiency | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | |
| Natural Gas – Normal Efficiency | 43.8 | 0.0 | 0.0 | 0.0 | 0.0 | |
| Natural Gas – Medium Efficiency | 19.6 | 59.4 | 59.5 | 59.5 | 59.6 | |
| Natural Gas – High Efficiency | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | |
| Electric | 14.4 | 15.4 | 15.4 | 15.4 | 15.4 | |
| Heat Pump | 1.7 | 2.7 | 2.7 | 2.8 | 2.9 | |
| Other1 | 1.2 | 2.8 | 2.9 | 3.0 | 3.1 | |
| Wood | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | |
Dual Systems | ||||||
| Wood/Electric | 4.1 | 4.7 | 4.7 | 4.7 | 4.8 | |
| Wood/Heating Oil | 9.0 | 10.2 | 10.2 | 10.3 | 10.4 | |
| Natural Gas/Electric | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | |
| Heating Oil/Electric | 1.1 | 1.5 | 1.5 | 1.5 | 1.5 | |