3 ms·

A real world mean COP of 3.5 is not unusual, see this paper: https://www.sciencedirect.com/science/article/pii/S0378778821006496 https://www.sciencedirect.com/

A real world mean COP of 3.5 is not unusual, see this paper: https://www.sciencedirect.com/science/article/pii/S0378778821006496 https://www.sciencedirect.com/science/article/pii/S037877882... Gas isn't 100% efficient either in heating the home. Boilers are ~92%.

manmal 4y ago
A German consumer report mentioned 2.6 (can’t find it right now), maybe that’s owed to Germany‘s climate.