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To make your home more energy efficient, you need to understand the energy efficiency of different types of heating and cooling systems.
| Works | SOTM | SOTD | HM |
|---|---|---|---|
| 0 | 0 | 0 | 0 |
| Works | SOTM | SOTD | HM |
|---|---|---|---|
| 0 | 0 | 0 | 0 |
