If I switch from propane to a heat pump, how would my annual heating cost change?

A quick, transparent estimate for U.S. homeowners who heat with propane. It starts from your own propane use.

Independent. We don't sell your details to installers. This is a planning estimate, not a quote.

Rough planning estimate — not a quote or a professional system-sizing calculation. Method, assumptions, sources and the full engineering caveat are in How this works.

Your situation

Annual propane use for space heating (gallons) Your input From the last 12 months of delivery receipts, or last winter's total. A typical whole-home propane heating load is roughly 400-1,500 gal/yr.
Enter only the propane used to heat your home. If propane also runs your water heater, stove, clothes dryer, or a fireplace, subtract a rough estimate of that use first — do not include it.
Rough national guides only, not your actual household figures: propane water heater ≈ 200-250 gal/yr, kitchen range ≈ 20-30 gal/yr, clothes dryer ≈ 15-20 gal/yr, gas-log fireplace varies widely. Check your own appliance ratings for a better number.

Your propane price ($/gallon) From your receipt. Leave blank to use the U.S. average.

Your electricity price ($/kWh) Your bill's total cost divided by total kWh. Leave blank to use the U.S. average.

Your climate Sets the assumed seasonal efficiency of the heat pump.

Your current propane system Older systems are assumed less efficient.

Adjust assumptions (optional)

Seasonal COP override Season-average heat delivered per unit of electricity. Leave blank to use the climate-based assumption. Realistic modern values are roughly 1.8 (very cold) to 3.6 (mild).

Optional: simple payback

Fill all three to estimate a simple (undiscounted) payback on the extra up-front cost. Optional — the estimate above works without them.

Heat-pump installed cost ($)

Cost to instead replace the propane system like-for-like ($)

Rebates / tax credits you expect ($)

Propane fixed fees you would stop paying ($/yr) Tank lease, delivery minimums, hazmat fees - only if you remove propane entirely.

How this works — method, assumptions & data sources

Method: annual gallons × propane energy content × current-system efficiency = the heat your home needs. Divide that by (seasonal COP × 3,412 BTU/kWh) to get the electricity a heat pump would use. Then price both sides. Results are shown as a range because heat-pump seasonal efficiency is uncertain.

Tags: Your input you entered it Default published average, editable Assumption our modelling choice Constant physical/reference value Estimate a calculated output, not exact

The exact values used for your most recent estimate are shown below.

What this estimate does not include

Before you buy equipment

Actual heat-pump performance and cost depend on your home, the equipment chosen, the installation, your local climate, and how the system is operated. This tool does not size equipment. Before purchasing, have a contractor perform an ACCA Manual J load calculation and Manual S equipment selection. No safety or savings guarantee is made.

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More home-energy tools are planned

Heating-oil and electric-baseboard versions, a panel-load checker, and a rebate finder. If those would be useful to you, let us know.

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