Heat Pump Payback in Florence, AZ
Florence, AZ: the heat pump payback math
A heat pump earns back its extra cost in Florence within a sensible timeframe. Swap a failed furnace and AC for a heat pump rather than buying like-for-like, and the extra cost here runs $3,000. Lower bills claw that back: about $401 saved annually, for a payback of roughly 7.5 years. That's a real payback, built from Florence's own climate and utility rates, not a national guess.
Compare against another city
This runs the same numbers for 3206 US cities, not just Florence. Look one up here.
The climate behind Florence's payback figure
1399 heating degree days pile up here every year, so Florence barely has a winter to speak of; the cooling side runs to 4472 cooling degree days, where summers are severe enough that cooling can dominate the annual bill. The 99% winter design temperature here, the cold snap equipment must be sized for, not the seasonal average, is 30.2°F, and the coldest daily reading in the 2024 station record was 28.4°F. That puts the seasonal coefficient of performance at 3.1 for the recommended standard unit. A standard ducted system is enough here; Florence's design temperature doesn't justify the cold-climate premium. Source: NOAA station Williams Gateway Airport, 21.6 miles from Florence, the closest one on record.
What it actually costs to run, year to year
Modelled on a typical 2000-square-foot house, the heat pump draws about 1,143 kWh a year to keep it warm, plus cooling, for a combined electric bill near $771 a year. Florence's gas rate of $18.58 per Mcf, applied to the 15 Mcf a year the furnace burns, puts the current furnace-and-AC running cost near $1,172 a year, against 15.55¢ per kWh for electricity. Priced as a standalone purchase, with a working furnace ripped out early, payback would take longer than the 15-year equipment life. Measured against the like-for-like replacement instead, a household here ends 15 years $3,020 ahead.
The break-even point in Florence
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 Florence at any electricity price. When quotes arrive, compare the heat pump price with a like-for-like furnace and AC replacement: at $401 a year saved, a difference under $2,807 pays back within 7 years here, and under $4,010 within 10.
Electric resistance heat in Florence, compared
Gas isn't universal in Florence, many houses run on electric heat already. Against electric-resistance heat, baseboard or an electric furnace, both 100% efficient but still just resistance, the case for switching gets stronger here. The saving here runs about $681 a year, which recovers the extra $7,500 spent going electric in roughly 11 years.
Florence against the rest of the country
Among 3206 cities, Florence's winter puts it at rank 2725 for severity, while its size puts it at rank 1613 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 Florence
About 24,891 people live in Florence, Arizona, 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, it's worth getting quotes before your current system fails, not after.
Ask a local HVAC contractor for a quote before committing either way.
Where Florence's figure comes from
The methodology guide walks through exactly how Florence's 3.1 seasonal COP and the rest of this page's numbers get built. Not every home in Florence has gas; the guide comparing a heat pump against electric baseboard covers that case separately.