A/C University
How much does it cost to run heat in Florida winters?
Short answer: heating in Florida is cheap with a heat pump and pricey with straight electric heat. Here are realistic ballparks and the math behind them.
What most Floridians actually pay (per winter month, Dec–Feb)
- South FL (Miami/Ft. Lauderdale):
- Heat pump: ~$10–$30
- Electric strip heat: ~$30–$90
- Central FL (Orlando/Daytona/Tampa):
- Heat pump: ~$20–$60
- Electric strip heat: ~$60–$180
- North FL (Jacksonville/Tallahassee/Pensacola):
- Heat pump: ~$40–$120
- Electric strip heat: ~$120–$300
Why the range? Outdoor temps, home size/insulation, thermostat habits, and whether your system uses efficient heat pump heating or energy-hungry electric resistance (strip) heat.
The quick math (so you can sanity-check)
- Electric rate: Florida averages about 15–17¢/kWh (varies by utility). Electric ChoiceEnergySageAxios
- Heating need: Florida’s winters are mild, measured by heating degree days (HDD).
- Miami ~200 HDD/yr, Orlando ~525 HDD/yr (1991–2020 normals), Jacksonville ~1,400 HDD/yr (higher = more heat needed). Climate Zone+1Florida Climate Center
- Efficiency difference:
- Typical heat pump delivers roughly 10,300 BTU per kWh over a season (example HSPF 10.3 ≈ COP ~3).
- Electric strip heat gives 3,412 BTU per kWh (COP ~1).
→ Strip heat uses about 3× as much electricity for the same heat. The Department of Energy’s Energy.govEnergy Vanguard
If a Central FL home needs ~15–25 million BTU for the whole winter (ballpark for average-sized, reasonably insulated homes), that’s roughly:
- Heat pump: 15–25 MMBtu ÷ 10,300 BTU/kWh ≈ 1,450–2,430 kWh/season → at 16¢/kWh ≈ $230–$390/season (≈ $20–$60/mo for Dec–Feb).
- Strip heat: 15–25 MMBtu ÷ 3,412 BTU/kWh ≈ 4,400–7,300 kWh/season → ≈ $700–$1,170/season (≈ $60–$180/mo).
(Your exact number shifts up/down with HDDs: Miami ≈ lower end; Jacksonville ≈ higher end.)
How to lower your winter bill in Florida
- Use “Heat” (not “Emergency Heat”) on your thermostat—EM heat forces strip heat.
- Set a gentle schedule: small setbacks (1–2°F) to avoid triggering strips on big recoveries.
- Keep filters clean & coils washed, especially near the coast (salt air).
- Add a smart thermostat with heat-pump-friendly settings (lock out/limit aux heat).
- Seal ducts/attic leaks; they matter even more when the system runs at low loads.