Heat Pump Savings Calculator

Estimate how annual heating energy cost changes when the same delivered heat is supplied by a heat pump instead of gas, propane, oil or electric resistance.

WCL / INTERACTIVE MODEL

Annual delivered heating demand (MMBtu)

Existing heating system

Existing system efficiency (%)

Natural gas price (selected currency/therm)

Heat pump seasonal COP

Electricity price (selected currency/kWh)

Net heat-pump project cost ($)

What the calculator holds constant

The same annual delivered heating demand is used for both systems. This isolates the effect of fuel price, existing-system efficiency and heat-pump COP.

Important limitation

Heat-pump COP varies with outdoor temperature, equipment, controls, defrost and backup heat. A single seasonal COP is a planning assumption, not a guaranteed field result.

Considering an installation?

See the installation-cost guide, then compare contractor scope.

Heat pump installation guide