Heat Pump vs Propane: Is It Worth Switching in 2026?
Last updated July 16, 2026
Short answer: yes, for almost every propane-heated home. At mid-2026 prices, a modern heat pump delivers usable heat for roughly $19 per million BTU versus about $32 per million BTU for a 90%-efficient propane furnace — a 30–40% cut in running cost. Propane is one of the most expensive ways to heat a home in the U.S., which is exactly why the switch pays back faster here than it does for homes on natural gas. The federal heat-pump tax credit expired at the end of 2025, but the running-cost gap alone still makes the math work in most of the country.
This article shows the actual numbers, where the switch does not obviously pay, and what incentives are still on the table. Run your own numbers on the calculator →
The core math: cost per unit of delivered heat
The only fair way to compare two heating fuels is cost per million BTU (MMBtu) of heat actually delivered into your house — after furnace or heat-pump efficiency losses.
Propane furnace
Propane holds about 91,450 BTU per gallon. A modern furnace at 90% AFUE turns that into roughly 82,300 BTU of delivered heat per gallon. At the 2025–26 season-average residential price of $2.67/gallon (EIA):
Heat pump
Electricity delivers 3,412 BTU per kWh, multiplied by the heat pump's seasonal COP. A good modern unit rated around HSPF2 10 runs a seasonal COP near 2.9 (HSPF2 ÷ 3.412), so each kWh delivers about 9,900 BTU. At the U.S. average residential rate of 18.83¢/kWh (EIA, April 2026, Electric Power Monthly):
Running cost per MMBtu of heat (2026 U.S. averages)
| Heating system | Efficiency | Price | Cost per MMBtu delivered |
|---|---|---|---|
| Propane furnace | 90% AFUE | $2.67/gal | $32.4 |
| Heat pump (good, COP 2.9) | HSPF2 ~10 | 18.83¢/kWh | $19.0 |
| Heat pump (older/cold, COP 2.3) | HSPF2 ~8 | 18.83¢/kWh | $24.0 |
| Propane (high-price region, $3.50/gal) | 90% AFUE | $3.50/gal | $42.5 |
Even a mediocre heat pump running at COP 2.3 beats propane. In high-price propane regions like the Northeast (PADD 1 averaged $3.26/gal in 2026), the gap widens to nearly 2-to-1.
What that means in dollars per year
Heating load varies a lot by home and climate, but a useful anchor is a home that burns 700 gallons of propane a year — common for a 1,800–2,400 sq ft house in a cold-to-moderate climate.
- Propane: 700 gal × $2.67 = ~$1,870/year
- Same delivered heat on a heat pump: 700 gal × 0.0823 = 57.6 MMBtu × $19.0 = ~$1,095/year
- Annual savings: roughly $775
Cut the home's usage in half (mild climate, 350 gal) and you save ~$390/year; double it (very cold, 1,400 gal) and you save ~$1,550/year. The colder and more propane-dependent you are, the bigger the win — with one caveat below.
Upfront cost and break-even
A whole-home ducted heat pump typically runs $14,000–$18,000 installed; ductless mini-split systems for smaller or zoned homes often land $5,000–$12,000. The honest way to think about payback depends on your situation:
- If your propane furnace is dying anyway, compare only the premium of a heat pump over a new furnace + AC. That premium is often $3,000–$6,000, which at ~$775/year savings breaks even in 4–8 years — well inside the equipment's 15+ year life.
- If you're ripping out a perfectly good furnace, you're paying the full system cost, and simple payback stretches to 12–18+ years. In that case, do it for comfort, air quality, or carbon reasons, not pure ROI.
Because you also get central air conditioning for free (a heat pump cools in summer too), homes that were going to buy AC anyway improve the math further — worth remembering as you read this in the middle of cooling season.
The cold-climate caveat
Heat-pump COP falls as it gets colder. At 47°F a unit might hit COP 3.5; at 17°F the same unit may drop to ~1.8. In deep cold, cheap electric-resistance backup heat (COP 1.0) can kick in and erase savings on the coldest days.
Two things keep the math favorable anyway:
- Cold-climate (ccASHP) models now hold usable output well below 0°F. Choose one if you're in climate zone 5 or colder.
- Propane is expensive enough that even at COP 2.0, a heat pump still beats a propane furnace on cost. You'd need electricity above ~30¢/kWh and a poorly matched heat pump for propane to win — a rare combination outside a few high-rate utilities.
If your electricity is unusually cheap (many Midwest and Pacific Northwest utilities are under 14¢/kWh), the heat pump advantage is enormous. See solar payback by state for context on local rates.
What incentives are left in 2026?
The federal 25C heat pump tax credit expired December 31, 2025 — see our heat pump tax credit guide for what that changed. What remains:
- HEEHRA / IRA state rebates — up to $8,000 for income-qualified households (below 80% area median income) and $4,000 for moderate-income (80–150% AMI). More than a dozen states were running programs in early 2026, though popular ones fill fast — California's single-family funds were fully reserved as of February 24, 2026. Massachusetts, New York, Georgia, North Carolina, and Virginia had the most layered programs.
- Utility rebates — many electric utilities offer $300–$2,000 per heat pump independent of income, because winter heat-pump load helps them use idle capacity.
Check current availability for your state on the incentives page before you buy — programs open, pause, and exhaust funding throughout the year.
Heat pump vs propane: quick verdict
| Your situation | Switch to a heat pump? |
|---|---|
| Furnace is old / failing | Yes — replace with a heat pump, fast payback |
| You also want/need AC | Yes — one system does both |
| Very cold climate | Yes, with a cold-climate model + keep propane or resistance backup |
| Cheap electricity (<14¢/kWh) | Strong yes — savings are large |
| New furnace, no AC plans, expensive power | Runs cheaper, but full-replacement payback is long — decide on comfort/carbon |
Frequently asked questions
Is a heat pump cheaper to run than propane in 2026?
Yes. At U.S. average prices, a heat pump delivers heat for about $19 per MMBtu versus about $32 for a 90%-efficient propane furnace — roughly 30–40% cheaper. Propane's high price per BTU is the main reason the gap is so large.
How much can I save switching from propane to a heat pump?
A home burning 700 gallons of propane a year (~$1,870) would spend about $1,095 on a heat pump for the same heat — around $775/year. Savings scale with how much propane you currently burn.
Do I need to keep my propane system as backup?
Not necessarily. Cold-climate heat pumps work below 0°F. In very cold zones, keeping propane (or adding electric-resistance strips) as backup for the coldest days is a reasonable, low-cost hedge, but many homes run heat-pump-only successfully.
Is there still a tax credit for heat pumps in 2026?
The federal 25C credit expired at the end of 2025. Income-qualified HEEHRA state rebates (up to $8,000) and utility rebates may still apply — availability varies by state and funding often runs out mid-year.
What heat pump efficiency should I look for to beat propane?
Anything rated HSPF2 8 or higher (seasonal COP ~2.3+) beats propane at average prices. For cold climates, target HSPF2 9–10 and a cold-climate (ccASHP) designation for good performance in deep cold.
Estimates use 2026 U.S. average prices; your result depends on local electricity and propane rates, climate, and equipment. Sources: EIA Heating Oil & Propane Update and Electric Power Monthly (April 2026). Energy prices and incentives change frequently; confirm current figures before purchasing. Estimates only — not financial advice.