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Heat Pump and Gas Furnace Operating Cost Calculator

Compare the same entered heating demand using explicit equivalent full-load hours, seasonal heat-pump efficiency, furnace AFUE, tariffs and other annual costs.

Use this result well

Inputs that matter
Reference heating load (Btu/h), Equivalent full-load heating hours, Heat-pump seasonal rating (Btu/Wh), Furnace AFUE (%), and 5 more
Output to expect
Heat pump and gas heating costs
  • Check the units and required inputs before comparing results.
  • Keep the assumptions with a copied result so you can reproduce the calculation later.
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Reference & details

How it works

Heat pump and gas heating costs

Compare annual operating cost for the same entered delivered heating demand. Equivalent full-load hours are explicit. Use a heat-pump seasonal rating and furnace AFUE on a compatible scope; enter fixed charges and energy components excluded by those ratings separately.

Delivered Btu = reference Btu/h × equivalent hours; heat pump kWh = Btu/(seasonal rating × 1000); gas therms = Btu/(100000 × AFUE/100); option cost = energy charge + other annual cost.

Updated: September 2026

Example Scenarios

The built-in example supplies labeled assumptions. Replace them with your own records before making a decision.

→ Gas furnace lower by $213.16

FAQ

No. Enter the equivalent full-load hours that match your seasonal delivered-heat assumption. There is no hidden 2,000-hour default or local climate lookup. The result excludes installation and does not size equipment.

Use your own records on the units and period shown. Enter explicit zeros for absent amounts, verify current terms and record the dates and assumptions.

Choose Save planning case for local history. Copy MD includes current inputs, notes and interpretation; Download CSV exports the result breakdown. Keep a portable copy separately.

About Heat Pump and Gas Furnace Operating Cost Calculator

Compare annual operating cost for the same entered delivered heating demand. Equivalent full-load hours are explicit. Use a heat-pump seasonal rating and furnace AFUE on a compatible scope; enter fixed charges and energy components excluded by those ratings separately.