HSPF2 ↔ COP reference

The documented approximation COP ≈ HSPF ÷ 3.412 converts a seasonal HSPF2 rating into a coefficient of performance for running-cost math. It is an estimate. Convert any value with the COP↔HSPF tool.

HSPF2Approx. COP (÷ 3.412)
7.02.05
7.52.20
8.02.34
8.52.49
9.02.64
10.02.93
11.03.22
12.03.52

Documented seasonal approximation (COP ≈ HSPF ÷ 3.412). COP also varies with outdoor temperature.

Related calculators

COP ↔ HSPF2Convert a heat-pump COP to an approximate HSPF2 rating using the documented HSPF is about COP times 3.412 relationship, with the math shown in full.Heat-Pump Running CostWork out heat-pump running cost from capacity, COP and your electricity rate. See the kW draw, kWh used and dollar cost for any number of run hours.HSPF2 Heat-Pump SavingsEstimate the yearly electricity savings and heating cost drop of a higher-HSPF2 heat-pump upgrade from your seasonal heating load and electricity rate.