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How is this news? The last air-air heat pump I looked at was guaranteed working down to -35°C/-31°F.(Mitsubishi Electric UWANO 8700) Is this just the US being
by NorwegianDude 4y ago
How is this news? The last air-air heat pump I looked at was guaranteed working down to -35°C/-31°F.(Mitsubishi Electric UWANO 8700)
Is this just the US being far behind when it comes to heat pumps or something?
- doikor 4y agoAt those temperatures that pump works at COP of 1. Basically it just switches on the resistive heating element it has for this case. What is being talked about here is having one that actually works as a heat pump at those temperatures instead of a resistive element. Though if you live in a place where such cold days only happen a few days per year tops this is just fine.