Heat Pump Payback in Melbourne, FL
Should Melbourne switch to a heat pump?
Melbourne sits right on the fence, how long you'll own the house decides this one. Against a like-for-like gas furnace and AC swap, going electric costs $3,000 more up front here. Lower bills claw that back: about $313 saved annually, for a payback of roughly 9.6 years. Whether that's worth it in Melbourne depends on how many years you expect to own the place.
Compare against another city
Melbourne is one of 3206 cities covered here, each run through the same model. Search another below.
Why Melbourne's climate drives this number
Melbourne barely has a winter to speak of, 373 heating degree days a year against a 65°F base, and summers are severe enough that cooling can dominate the annual bill, at 3742 cooling degree days. 42.1°F is the figure equipment gets sized against here, the 99th-percentile cold snap, not an average day, with a low of 39.9°F in the 2024 station record. Worked through the model, that's a seasonal COP of 3.45 on the standard unit fit for this climate. A standard ducted system is enough here; Melbourne's design temperature doesn't justify the cold-climate premium. Source: NOAA station Melbourne International AP, 1.3 miles from Melbourne, the closest one on record.
What it actually costs to run, year to year
Electricity use for heating alone comes out to about 274 kWh a year on the 2000-square-foot reference house; folding in cooling puts the electric bill near $535 a year. With so little heating demand, a furnace in Melbourne would burn only about 4 Mcf a year ($25.48 per Mcf); almost all of the $847 yearly running cost of the current system is cooling, at 15.43¢/kWh. Any saving here is really a cooling-efficiency saving. Buying outright rather than at replacement time stretches payback to longer than the 15-year equipment life. Over 15 years, compared with a like-for-like replacement, the heat pump leaves you $1,691 ahead.
What would change Melbourne's answer
Because the heat pump's better air conditioning saves more electricity than its heating uses, it stays cheaper to run than the current furnace and AC in Melbourne at any electricity price. When quotes arrive, compare the heat pump price with a like-for-like furnace and AC replacement: at $313 a year saved, a difference under $2,191 pays back within 7 years here, and under $3,130 within 10.
If your home heats with electric baseboard instead of gas
Plenty of homes in Melbourne heat with electricity alone, no gas line involved. Compared with baseboard or electric-furnace resistance heat, the numbers shift in the heat pump’s favor. Even against resistance heat, the running-cost gap here isn't enough to clear the $7,500 incremental cost within the equipment's 15-year life.
Melbourne against the rest of the country
Among 3206 cities, Melbourne's winter puts it at rank 3096 for severity, while its size puts it at rank 408 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.
What to do with this number in Melbourne
About 87,561 people live in Melbourne, Florida, and every number on this page is what a contractor would actually work from when quoting a system here, the point isn't to replace that quote, it's to tell you whether to bother asking for one. Here, there's no cost penalty to waiting until your current furnace or AC actually needs replacing.
Get quotes from local HVAC contractors before deciding.
Where Melbourne's figure comes from
Every constant behind this page, the 3.45 seasonal COP, the degree-day corrections, the equipment costs, is documented in the methodology guide. Not every home in Melbourne has gas; the guide comparing a heat pump against electric baseboard covers that case separately.