Heat Pump Payback in Apache Junction, AZ
Should Apache Junction switch to a heat pump?
Apache Junction clears a genuine payback here, inside a reasonable stretch of years. 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 $401 saved annually, for a payback of roughly 7.5 years. The window here is reasonable, and it's specific to what Apache Junction actually pays for power and gas.
Not the city you meant?
Apache Junction is one of 3206 cities covered here, each run through the same model. Search another below.
Apache Junction's weather, in the numbers that matter
1399 heating degree days pile up here every year, so Apache Junction 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. 30.2°F is the figure equipment gets sized against here, the 99th-percentile cold snap, not an average day, with a low of 28.4°F in the 2024 station record. Worked through the model, that's a seasonal COP of 3.1 on the standard unit fit for this climate. Apache Junction'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, Williams Gateway Airport, 9.3 miles from Apache Junction.
Apache Junction's running-cost comparison, in dollars
A 2000-square-foot house here would pull roughly 1,143 heating kilowatt-hours annually on top of cooling, totalling about $771 a year on electricity. That compares with roughly 15 Mcf a year of gas at Apache Junction's $18.58 per-Mcf rate, about $1,172 a year with the old AC included, against a local electricity rate of 15.55¢/kWh. 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 $3,020 ahead.
What would change Apache Junction's answer
In Apache Junction 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 Apache Junction: the heat pump is worth it within a decade if it costs less than $4,010 more than replacing the furnace and AC, and within 7 years if the gap is under $2,807.
If your home heats with electric baseboard instead of gas
Not every home in Apache Junction has gas service. Swap the comparison to resistance heat instead of gas, and Apache Junction's answer improves. About $681 a year comes back this way, enough that the 11-year payback clears the $7,500 premium comfortably within the equipment's life.
Apache Junction against the rest of the country
Ranked against the other 3206 cities covered, Apache Junction comes in at 2724 for heating severity, 1 would be the coldest place in the dataset, and 931 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 Apache Junction
Apache Junction, Arizona is home to about 44,309 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. Given the math above, Apache Junction is a place worth lining up quotes ahead of a breakdown, not waiting for one.
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 3.1 seasonal COP, the degree-day corrections, the equipment costs, is documented in the methodology guide. Homes in Apache Junction without gas service should read the electric-resistance comparison instead, the numbers there differ from the gas case above.