4 ms·
Heat pumps only work at that level of efficiency above about 10 degrees C. That is why they often have integrated electric resistance heaters.
by kloch 4y ago
Heat pumps only work at that level of efficiency above about 10 degrees C. That is why they often have integrated electric resistance heaters.
- ericpauley 4y agoThis is an antiquated figure. Modern heat pumps maintain competitive performance at much lower temperatures.
- ericd 4y agoNot true anymore. Check out eg the Mitsubishi Hyper-Heat, if I’m reading the COP right, it’s something like 280% efficient at -8 C.