Do Heat Pumps Work in Cold Climates?
Yes. Cold-climate heat pumps keep heating efficiently down to about 5°F, and some hold full capacity at -15°F. Here is how they work and what to check before buying.
Heat Pumps and HVAC
Heat Pump vs Furnace: Cost, Comfort and Running Costs
Installed costs, running costs and cold-weather performance compared, plus when a heat pump beats a furnace in 2026.