Heat Pump Payback in Corinth, TX
Should Corinth switch to a heat pump?
The payback math works in Corinth on paper, past the equipment's own working life. $5,500 is what Corinth would pay extra to go electric rather than replace the furnace and AC with the same again. Lower bills claw that back: about $350 saved annually, for a payback of roughly 15.7 years. Corinth's own numbers say this pencils out only in theory, not in practice.
Not the city you meant?
Corinth is one of 3206 cities covered here, each run through the same model. Search another below.
The climate behind Corinth's payback figure
2081 heating degree days pile up here every year, so Corinth has a mild winter by US standards; the cooling side runs to 3023 cooling degree days, where summers are severe enough that cooling can dominate the annual bill. Sizing runs off the design temperature, not the average day: 10.9°F here (coldest 2024 reading 9°F), which works out to a seasonal COP of 2.96 for the cold-climate class of unit this climate calls for. The average winter here is gentle, but sizing follows the cold snaps, and 10.9°F is below the 25°F point where a standard unit leans on resistance backup, so a cold-climate unit is what gets priced for Corinth. Source: NOAA station Denton Municipal Airport, 8.5 miles from Corinth, the closest one on record.
What it actually costs to run, year to year
Electricity use for heating alone comes out to about 1,780 kWh a year on the 2000-square-foot reference house; folding in cooling puts the electric bill near $704 a year. Corinth's gas rate of $19.42 per Mcf, applied to the 22 Mcf a year the furnace burns, puts the current furnace-and-AC running cost near $1,054 a year, against 16.15¢ per kWh for electricity. 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 $252 behind.
What would change Corinth's answer
This result holds unless electricity climbs above 95.7¢/kWh (it is 16.15¢ now) or gas drops below $3.28 per Mcf (now $19.42); past either point, gas becomes the cheaper fuel in Corinth. 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 Corinth, compared
Not every home in Corinth has gas service. Swap the comparison to resistance heat instead of gas, and Corinth's answer improves. Switching saves about $780 a year here, a heat pump moving heat rather than generating it needs far less electricity than resistance coils, so the extra $10,000 spent up front comes back in about 12.8 years.
Corinth against the rest of the country
Among 3206 cities, Corinth's winter puts it at rank 2393 for severity, while its size puts it at rank 1643 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 Corinth
About 24,450 people live in Corinth, Texas, 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 Corinth's figure comes from
Nothing above is a black box: the methodology guide shows the full arithmetic behind Corinth's 2.96 seasonal COP and payback figure. Corinth's 10.9°F design temperature is below the 25°F line, which is why a cold-climate unit is the right call here, see what that changes in the cold-climate unit guide.