Quick answer: Heat pumps work well in Fountain Hills, where January lows average 42°F. Set the thermostat so backup heat strips run only when needed, and call for service if the outdoor coil stays iced over.
Fountain Hills gets real winter nights. January averages a high of 64°F and a low of 42°F, and the town has recorded 23°F. Higher streets in the hills run cooler than the town center. That makes heating choices here a little more important than on the valley floor.
Do heat pumps work here?
Yes. Modern heat pumps heat efficiently well below freezing, and Fountain Hills nights rarely get there. The heat pump carries the load on most nights; electric backup strips or a gas furnace handle the rare cold snap and defrost cycles.
Heat pump or gas furnace?
| Heat pump | Gas furnace + AC | |
|---|---|---|
| Cooling and heating | One outdoor unit does both | Separate furnace and AC |
| Comfort | Steady, gentler warm air | Hotter air, faster warm-up |
| Fuel | Electric only | Needs gas service and venting |
| Rebates | SRP Cool Cash applies to qualifying heat pumps | Applies to the AC side |
Keep backup heat in check
Backup strips are expensive to run. A thermostat set up correctly brings them on only when the heat pump cannot keep up, not every time you bump the setting by a few degrees. We check this on every heat pump service.
Cold-morning icing
On frosty mornings the outdoor coil can ice up. The system should defrost on its own every so often; if the coil stays white with ice, call for service before the compressor is damaged.
Dual fuel
Homes with gas can pair a heat pump with a furnace. The heat pump runs most of the time and the furnace takes over on the coldest mornings.
Heat pump not heating? See heater repair.
Common questions
Do heat pumps work in Fountain Hills winters?
Yes. Modern heat pumps heat efficiently on nights much colder than Fountain Hills usually gets.
What is dual fuel?
A heat pump paired with a gas furnace that takes over on the coldest mornings.
Why is my heat pump covered in ice?
Light frost is normal and should clear in defrost; ice that stays means a defrost or refrigerant problem.
Thinking about a heat pump? Call 480-336-2721 and tell us your street or neighborhood in Fountain Hills.