Heat Pump Efficiencies

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The formulas below were shared sometimes ago. Does anyone know the corresponding formulas for the COP and HSPF?

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Demba NDIAYE

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EIR = 1 / COP

Eddie Corwin's picture
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Heating EIR = (1/(COP*3.413)-0.012167)/((1/3.413)-0.012167)

and

Heating EIR = (1/((HSPF*0.28+1.13)*3.413)-0.012167)/((1/3.413)-0.012167)

Gaurav Mehta, LEED? AP

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Heating EIR = (1/(COP*3.413)-0.012167)/((1/3.413)-0.012167)

and

Heating EIR = (1/((HSPF*0.28+1.13)*3.413)-0.012167)/((1/3.413)-0.012167)

Gaurav Mehta, LEED? AP

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