Heat pump vs. gas furnace in Chandler, AZ
Chandler is a clear case: a heat pump beats what you have by a wide margin. $1,000 is what Chandler would pay extra to go electric rather than replace the furnace and AC with the same again, once the $2,000 federal credit is applied. That premium is recovered through $411 of lower running costs every year, landing the payback clock at roughly 2.4 years. That verdict holds specifically for Chandler's own climate and rates, not a national average.
Chandler's weather, in the numbers that matter
Chandler barely has a winter to speak of — 761 heating degree days a year against a 65°F base — and summers are severe enough that cooling can dominate the annual bill, at 5206 cooling degree days. 32°F is the figure equipment gets sized against here — the 99th-percentile cold snap, not an average day — with a record low of 32°F on file. Worked through the model, that's a seasonal COP of 3.15 on the standard unit fit for this climate. Chandler's winters don't get cold enough to need the cold-climate premium — a standard unit holds up fine. Source: NOAA station CHANDLER MUNICIPAL AIRPORT, 2.4 miles from Chandler — the closest one on record.
What it actually costs to run, year to year
A 2000-square-foot house here would pull roughly 612 heating kilowatt-hours annually on top of cooling, totalling about $785 a year on electricity. Chandler's gas rate of 18.58 per Mcf, applied to the 8 Mcf a year the furnace burns, puts its running cost near $1,196 a year, against 15.55¢ per kWh for electricity. Looked at as a full purchase rather than an incremental one, payback here is roughly 26.8 years, leaving the 15-year total $5,166 ahead.
Electric resistance heat in Chandler, compared
Gas isn't universal in Chandler — 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 $563 a year, which recovers the extra $5,500 spent going electric in roughly 9.8 years.
Where Chandler ranks in this dataset
Among 3206 cities, Chandler's winter puts it at rank 2981 for severity, while its size puts it at rank 79 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 for 281,231 people in Chandler
Chandler, Arizona is home to about 281,231 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, Chandler 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
The methodology guide walks through exactly how Chandler's 3.15 seasonal COP and the rest of this page's numbers get built. The $2,000 federal credit baked into Chandler's number is explained, with the before-and-after math, in the tax credit guide.