Heat Pump Payback in Union City, TN
Is a heat pump worth it in Union City?
In Union City, the extra upfront cost technically comes back, just not before the equipment wears out. Against a like-for-like gas furnace and AC swap, going electric costs $5,500 more up front here. Union City's residents would see roughly $131 a year back in running costs, putting the payback around 41.9 years. Union City's own numbers say this pencils out only in theory, not in practice.
Checking a different city
Union City is one of 3206 cities covered here, each run through the same model. Search another below.
Why Union City's climate drives this number
Union City has a mild winter by US standards, 1702 heating degree days a year against a 65°F base, and summers are hot enough that cooling matters as much as heating, at 1751 cooling degree days. The 99% winter design temperature here, the cold snap equipment must be sized for, not the seasonal average, is 21.2°F, and the coldest daily reading in the 2024 station record was 17.6°F. That puts the seasonal coefficient of performance at 3.21 for the recommended cold-climate unit. The average winter here is gentle, but sizing follows the cold snaps, and 21.2°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 Union City. Climate figures trace to the nearest NOAA station, Everett-Stewart Airport, 4.8 miles from Union City.
Union City's running-cost comparison, in dollars
Electricity use for heating alone comes out to about 1,343 kWh a year on the 2000-square-foot reference house; folding in cooling puts the electric bill near $393 a year. That compares with roughly 18 Mcf a year of gas at Union City's $11.84 per-Mcf rate, about $525 a year with the old AC included, against a local electricity rate of 13.87¢/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 $3,530 behind.
How sensitive Union City's result is to prices
This result holds unless electricity climbs above 37.1¢/kWh (it is 13.87¢ now) or gas drops below $4.43 per Mcf (now $11.84); past either point, gas becomes the cheaper fuel in Union City. When quotes arrive, compare the heat pump price with a like-for-like furnace and AC replacement: at $131 a year saved, a difference under $917 pays back within 7 years here, and under $1,310 within 10.
Electric resistance heat in Union City, compared
Plenty of homes in Union City heat with electricity alone, no gas line involved. Against electric-resistance heat, baseboard or an electric furnace, both 100% efficient but still just resistance, the case for switching gets stronger here. Even against resistance heat, the running-cost gap here isn't enough to clear the $10,000 incremental cost within the equipment's 15-year life.
How Union City compares nationally
Among 3206 cities, Union City's winter puts it at rank 2582 for severity, while its size puts it at rank 3011 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 Union City
About 10,876 people live in Union City, Tennessee, 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.
Line up a few local HVAC quotes before you decide.
Reading further on this page's numbers
Every constant behind this page, the 3.21 seasonal COP, the degree-day corrections, the equipment costs, is documented in the methodology guide. Union City's 21.2°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.