Your heating system is the biggest energy consumer in your home. The choice between a heat pump and a gas furnace affects your bills for 15–20 years. We break down the real numbers by climate zone.
Zone 4–5 (Mixed climate): Heat pump + gas furnace (dual-fuel) is usually optimal. Use the heat pump down to 30°F, then switch to gas.
Zone 6–7 (Cold climate): Gas furnace wins on pure economics. Cold-climate heat pumps work down to -15°F but cost more to operate when temps drop below 20°F.
Zone 1–3 (Warm climate): Heat pump wins easily. You barely need heating, and a heat pump doubles as your AC.
| Factor | Heat Pump | Gas Furnace |
|---|---|---|
| Efficiency | 200-400% (COP 2-4) | 80-98% AFUE |
| Installed Cost | $3,000–$10,000 | $2,000–$5,000 |
| Annual Operating Cost | $600–$1,200 | $800–$1,800 |
| Lifespan | 15 years | 20 years |
| Also Cools? | Yes (built-in AC) | No (separate AC needed) |
| Best Climate | Zone 1-5 | Zone 5-7 |
Heating needs are minimal (500–2,000 HDD). A heat pump provides 3-4 units of heat per unit of electricity. Operating costs are 40-60% lower than gas.
Heat pump handles 80% of heating hours. Gas furnace kicks in below 30°F for peak efficiency. Best of both worlds.
Standard heat pumps lose efficiency below 40°F. Cold-climate models (Mitsubishi Hyper-Heat) work to -15°F but cost $2,000-4,000 more. Gas is usually cheaper unless electricity is below $0.10/kWh.
Extended sub-zero temps make heat pumps inefficient. A 95%+ AFUE condensing furnace is the economical choice.
Take the Quick Quiz for a personalized recommendation based on your climate, rates, and existing system.
Quick Quiz