How to Value the Performance of a Heat Pump?

Performance of heat pumps is valued usually by Coefficient of Performance (COP for short). COP stands for the amount of heat transferred to the high-temperature objects from the low-temperature ones divided by the motive power amount needed. Generally COP stays between 3 and 4, which means heat pumps can transfer heat three or four times higher than what it consumes to the high-temperature objects. So heat pumps are in fact a heat elevator. They consume very little electricity when working but they can absorb heat four to seven times higher than electricity from the environmental medium such as water, air and soil. It is one of their environmentally-friendly point for they elevate the temperature and use it.

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