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How much energy is needed to run a GSHP ?

April 26, 2017energy GSHP needed run

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How much energy is needed to run a GSHP ?

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Modern electric heat pumps obtain approximately three quarters of the heat required for heating from the environment the remaining quarter is drawn as electrical power for driving the compressor. The performance factor is a result of the ratio between the transferred heating energy and the energy used (power supplied to the unit) which describes the effectiveness of the heat pump. In general terms 1 unit of electrical input returns 3-4 units of output.