Heat Pump vs Furnace Cost in 2026: What You’ll Actually Pay
Heat pump vs gas furnace in 2026: annual heating costs depend on your fuel and electricity prices. See the math, equipment costs, and when a heat pump beats gas — plus what changed with incentives.
The answer depends less on the equipment than on what you pay for gas and electricity. In a cheap-gas state, a heat pump may save only a couple hundred dollars a year on heating. In a high-priced-fuel or fuel-oil home, the same heat pump can cut heating bills by thousands — and it replaces the air conditioner too.
Annual heating cost: the three-fuel comparison
| System | How to estimate annual cost | 2026 typical outcome |
|---|---|---|
| Gas furnace (95% AFUE) | Heat demand ÷ 29.3 therms/MWh equivalent ÷ AFUE × $/therm | Cheap where gas is ~$1.00–$1.50/therm |
| Propane furnace | Same, converted to gallons at ~91,500 BTU/gal | Often 2–3× gas; heat pumps typically win |
| Heat pump (HSPF2 8.5–10) | Heat demand ÷ COP (HSPF ÷ 3.412) × $/kWh | Wins where electricity is moderate and gas is expensive |
Climate and insulation shift total demand, but not the direction of the comparison. The two variables that flip the answer are the electricity-to-gas price ratio and how much auxiliary resistance heat the heat pump needs in cold weather.
Equipment and install costs
| Item | Typical 2026 cost | Notes |
|---|---|---|
| Heat pump (whole-home, installed) | $8,000–$15,000 | Cold-climate models and ductwork can push higher |
| Gas furnace (installed) | $4,000–$8,000 | Venting and gas line work vary |
| Central A/C (installed) | $4,000–$7,000 | A heat pump replaces this — count it in a fair comparison |
The fair comparison is heat pump vs furnace + A/C when the A/C is also end-of-life. The tool has a switch for exactly this, because it often changes the payback by years.
What changed with incentives in 2026
The federal 25C credit ended for systems placed in service after December 31, 2025 — including the up-to-$2,000 heat pump credit. State and utility rebates remain, but availability varies widely by state and can change quickly. What still qualifies in 2026 →
When a heat pump is the better buy
- You heat with propane, oil or electric resistance — fuel costs are high.
- Your A/C is due for replacement — the heat pump does both jobs.
- Your state or utility has a meaningful rebate, or you qualify for an income-based program.
- Your climate is mild-to-mixed; cold-climate models can still work but need careful sizing.
When a furnace may still win: cheap natural gas, a mild climate with low cooling demand, or a constrained budget where the equipment premium can’t be recovered.
Enter your climate, home size, electricity and gas prices, and HSPF2/AFUE — see annual costs and 15-year totals, including the A/C fair-comparison switch.
Quick answers
Do heat pumps work in cold climates?
Modern cold-climate heat pumps do, but efficiency falls as temperatures drop and auxiliary heat may kick in. Ductless cold-climate models are often specified with HSPF2 of at least 8.5 and SEER2 of at least 15.2. Sizing and insulation matter as much as the rating.
Is a heat pump cheaper than a gas furnace overall?
Not automatically. With cheap gas, heating-only savings can be modest — the stronger case is when the heat pump also replaces an aging A/C. A 15-year view usually favors the heat pump when fuel prices are high or rebates are meaningful.
Sources
- NuWatt Energy — Heat pump vs gas furnace in New Jersey (2026)
- Facilities Dive — US heat pump and furnace shipments (2026)
- About Darwin — HSPF2 rating guide (2026)
- Trane — DOE heat pump rebates overview
All figures checked November 2026. Local prices and program rules vary.