Heat Pump Payback in Fort Myers, FL
Heat pump vs. gas furnace in Fort Myers, FL
In Fort Myers, the math is close enough that it comes down to how long you plan to stay. Swap a failed furnace and AC for a heat pump rather than buying like-for-like, and the extra cost here runs $3,000. Fort Myers's residents would see roughly $312 a year back in running costs, putting the payback around 9.6 years. It's a genuine toss-up here, Fort Myers's numbers don't point clearly either way.
Compare against another city
Fort Myers is one of 3206 cities covered here, each run through the same model. Search another below.
How cold Fort Myers actually gets
Fort Myers barely has a winter to speak of, 197 heating degree days a year against a 65°F base, and summers are severe enough that cooling can dominate the annual bill, at 4123 cooling degree days. 44.1°F is the figure equipment gets sized against here, the 99th-percentile cold snap, not an average day, with a low of 43°F in the 2024 station record. Worked through the model, that's a seasonal COP of 3.51 on the standard unit fit for this climate. Fort Myers's winters don't get cold enough to need the cold-climate premium, a standard unit holds up fine. Climate figures trace to the nearest NOAA station, Page Field Airport, 2.9 miles from Fort Myers.
The yearly running costs in Fort Myers
On a typical 2000-square-foot house, heating needs here are close to nil, so the heat pump's electric bill, near $564 a year, is almost entirely air conditioning. Heating barely registers here, a gas furnace would burn about 2 Mcf a year at $25.48 per Mcf, so nearly all of the $877 a year the existing setup costs to run is the old air conditioner. At 15.43¢/kWh, the saving in Fort Myers comes from the heat pump being a more efficient air conditioner, not from heating. If the current system still worked and you replaced it anyway, the full cost would take longer than the 15-year equipment life to earn back; against buying a new furnace and AC regardless, the 15-year total lands $1,686 ahead.
The break-even point in Fort Myers
In Fort Myers the cooling savings outweigh the extra electricity for heating, so no plausible change in the electricity rate would make the old furnace and AC cheaper to run. A useful quote test for Fort Myers: the heat pump is worth it within a decade if it costs less than $3,120 more than replacing the furnace and AC, and within 7 years if the gap is under $2,184.
If your home heats with electric baseboard instead of gas
Not every home in Fort Myers has gas service. Against electric-resistance heat, baseboard or an electric furnace, both 100% efficient but still just resistance, the case for switching gets stronger here. The gap still doesn't close: the $7,500 incremental cost outlasts the 15-year equipment life here even against resistance heat.
Fort Myers against the rest of the country
Among 3206 cities, Fort Myers's winter puts it at rank 3132 for severity, while its size puts it at rank 343 for population, 1 in both cases being the extreme. That's the mildest third of cities covered, where utility rates carry more of the answer than climate does.
Next step if you live in Fort Myers
Fort Myers, Florida is home to about 99,918 people, and the figures above are the same ones a local HVAC contractor uses to size and quote a system, this site doesn't guess where a real quote would land, it just tells you whether it's worth asking for one. In Fort Myers, nothing is lost by holding off until the current equipment genuinely fails.
Get quotes from local HVAC contractors before deciding.
Reading further on this page's numbers
The methodology guide walks through exactly how Fort Myers's 3.51 seasonal COP and the rest of this page's numbers get built. Homes in Fort Myers without gas service should read the electric-resistance comparison instead, the numbers there differ from the gas case above.