Heat Pump Payback in Lewisville, NC
Will a heat pump pay off in Lewisville, NC?
In Lewisville, the extra upfront cost technically comes back, just not before the equipment wears out. Swap a failed furnace and AC for a heat pump rather than buying like-for-like, and the extra cost here runs $5,500. Lewisville's residents would see roughly $255 a year back in running costs, putting the payback around 21.6 years. Lewisville's own numbers say this pencils out only in theory, not in practice.
Checking a different city
Landed on Lewisville by mistake, or want to compare it against somewhere else? Search the other 3206 cities below.
The climate behind Lewisville's payback figure
2829 heating degree days pile up here every year, so Lewisville has a mild winter by US standards; the cooling side runs to 1704 cooling degree days, where summers are hot enough that cooling matters as much as heating. 18°F is the figure equipment gets sized against here, the 99th-percentile cold snap, not an average day, with a low of 15.1°F in the 2024 station record. Worked through the model, that's a seasonal COP of 3.13 on the cold-climate unit fit for this climate. The average winter here is gentle, but sizing follows the cold snaps, and 18°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 Lewisville. These numbers come from Smith Reynolds Airport, the closest NOAA station, 11.5 miles out.
The yearly running costs in Lewisville
A 2000-square-foot house here would pull roughly 2,289 heating kilowatt-hours annually on top of cooling, totalling about $559 a year on electricity. Lewisville's gas rate of $16.42 per Mcf, applied to the 29 Mcf a year the furnace burns, puts the current furnace-and-AC running cost near $813 a year, against 14.93¢ 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 $1,677 behind.
What would change Lewisville's answer
This result holds unless electricity climbs above 31.6¢/kWh (it is 14.93¢ now) or gas drops below $7.77 per Mcf (now $16.42); past either point, gas becomes the cheaper fuel in Lewisville. When quotes arrive, compare the heat pump price with a like-for-like furnace and AC replacement: at $255 a year saved, a difference under $1,785 pays back within 7 years here, and under $2,550 within 10.
If your home heats with electric baseboard instead of gas
Not every home in Lewisville has gas service. Against electric-resistance heat, baseboard or an electric furnace, both 100% efficient but still just resistance, the case for switching gets stronger here. Switching saves about $841 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 11.9 years.
Lewisville against the rest of the country
Among 3206 cities, Lewisville's winter puts it at rank 1980 for severity, while its size puts it at rank 2489 for population, 1 in both cases being the extreme. That's the middle third for winter severity among the cities covered here.
What to do with this number in Lewisville
About 14,203 people live in Lewisville, North Carolina, 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
Nothing above is a black box: the methodology guide shows the full arithmetic behind Lewisville's 3.13 seasonal COP and payback figure. Lewisville's 18°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.