Heat Pump Payback in Tucson, AZ
Tucson, AZ: the heat pump payback math
Tucson sits right on the fence, how long you'll own the house decides this one. 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 $349 saved annually, for a payback of roughly 8.6 years. Whether that's worth it in Tucson depends on how many years you expect to own the place.
Not the city you meant?
Tucson is one of 3206 cities covered here, each run through the same model. Search another below.
The climate behind Tucson's payback figure
Tucson barely has a winter to speak of, 1430 heating degree days a year against a 65°F base, and summers are severe enough that cooling can dominate the annual bill, at 3738 cooling degree days. Sizing runs off the design temperature, not the average day: 28.2°F here (coldest 2024 reading 27.7°F), which works out to a seasonal COP of 3.04 for the standard class of unit this climate calls for. A standard ducted system is enough here; Tucson's design temperature doesn't justify the cold-climate premium. Source: NOAA station Davis-Monthan AFB Airport, 1.2 miles from Tucson, the closest one on record.
The yearly running costs in Tucson
Modelled on a typical 2000-square-foot house, the heat pump draws about 1,191 kWh a year to keep it warm, plus cooling, for a combined electric bill near $681 a year. That compares with roughly 15 Mcf a year of gas at Tucson's $18.58 per-Mcf rate, about $1,030 a year with the old AC included, against a local electricity rate of 15.55¢/kWh. 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 $2,238 ahead.
What would change Tucson'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 Tucson at any electricity price. When quotes arrive, compare the heat pump price with a like-for-like furnace and AC replacement: at $349 a year saved, a difference under $2,443 pays back within 7 years here, and under $3,490 within 10.
If your home heats with electric baseboard instead of gas
Plenty of homes in Tucson heat with electricity alone, no gas line involved. Swap the comparison to resistance heat instead of gas, and Tucson's answer improves. About $636 a year comes back this way, enough that the 11.8-year payback clears the $7,500 premium comfortably within the equipment's life.
Tucson against the rest of the country
Among 3206 cities, Tucson's winter puts it at rank 2712 for severity, while its size puts it at rank 33 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 Tucson
About 554,013 people live in Tucson, 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.
Get quotes from local HVAC contractors before deciding.
Where Tucson's figure comes from
Every constant behind this page, the 3.04 seasonal COP, the degree-day corrections, the equipment costs, is documented in the methodology guide. Not every home in Tucson has gas; the guide comparing a heat pump against electric baseboard covers that case separately.