Heat Pump Payback in Casa Grande, AZ
Is a heat pump worth it in Casa Grande?
This one's marginal in Casa Grande: it only clears if you stay long enough. Swap a failed furnace and AC for a heat pump rather than buying like-for-like, and the extra cost here runs $3,000. That premium is recovered through $350 of lower running costs every year, landing the payback clock at roughly 8.6 years. Whether that's worth it in Casa Grande depends on how many years you expect to own the place.
Checking a different city
This runs the same numbers for 3206 US cities, not just Casa Grande. Look one up here.
The climate behind Casa Grande's payback figure
Degree days tell the story here: Casa Grande racks up 1396 heating degree days each year (base 65°F), and summers are severe enough that cooling can dominate the annual bill, with 3813 cooling degree days on the cooling side. The 99% winter design temperature here, the cold snap equipment must be sized for, not the seasonal average, is 27°F, and the coldest daily reading in the 2024 station record was 27°F. That puts the seasonal coefficient of performance at 3 for the recommended standard unit. A standard ducted system is enough here; Casa Grande's design temperature doesn't justify the cold-climate premium. These numbers come from Casa Grande Municipal Airport, the closest NOAA station, 3 miles out.
Casa Grande's running-cost comparison, in dollars
A 2000-square-foot house here would pull roughly 1,178 heating kilowatt-hours annually on top of cooling, totalling about $689 a year on electricity. The gas furnace it replaces burns roughly 15 Mcf a year at $18.58 per Mcf here, for a running cost near $1,039 a year including the old AC (electricity here runs 15.55¢/kWh). 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 $2,247 ahead.
The break-even point in Casa Grande
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 Casa Grande at any electricity price. When quotes arrive, compare the heat pump price with a like-for-like furnace and AC replacement: at $350 a year saved, a difference under $2,450 pays back within 7 years here, and under $3,500 within 10.
Electric resistance heat in Casa Grande, compared
Gas isn't universal in Casa Grande, many houses run on electric heat already. Compared with baseboard or electric-furnace resistance heat, the numbers shift in the heat pump’s favor. Switching saves about $629 a year here, a heat pump moving heat rather than generating it needs far less electricity than resistance coils, so the extra $7,500 spent up front comes back in about 11.9 years.
Casa Grande against the rest of the country
Ranked against the other 3206 cities covered, Casa Grande comes in at 2728 for heating severity, 1 would be the coldest place in the dataset, and 567 by population, where 1 is largest. 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 Casa Grande
About 68,927 people live in Casa Grande, 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, there's no cost penalty to waiting until your current furnace or AC actually needs replacing.
Ask a local HVAC contractor for a quote before committing either way.
More on how this number was built
Every constant behind this page, the 3 seasonal COP, the degree-day corrections, the equipment costs, is documented in the methodology guide. Not every home in Casa Grande has gas; the guide comparing a heat pump against electric baseboard covers that case separately.