2 ms·
Are these using resistive heating when it gets too cold for the heat pump to run, or are these heat pumps actually efficient down to -22F/-30C?
by timbit42 4y ago
Are these using resistive heating when it gets too cold for the heat pump to run, or are these heat pumps actually efficient down to -22F/-30C?
- throw0101c 4y agoAFAICT, they're using the heat pumps all the way down.