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Heat pump vs gas furnace cost calculator

Compare estimated annual heating costs using your gas use and local energy prices.

Gas used for space heatingSubtract hot water and cooking use first.therms/yr

Furnace AFUE%Heat-pump seasonal COPCOP

Gas price$per thermElectricity price$per kWh

Compare the same delivered heat

The calculation starts with heat delivered by the existing furnace, then asks how much electricity a heat pump would need to deliver it.

GASTherms × AFUE

SAME HEAT TO HOME

ELECTRICITYkWh × COP

Seasonal COP changes with climate, equipment, supply temperature, and backup heat use.

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HVAC Judge provides general information and planning estimates, not a diagnosis, installation design, warranty decision, or contractor quote. Check equipment details with the manufacturer and use a qualified HVAC professional before repair, replacement, or installation.