Heat Pump Payback in Harker Heights, TX
Will a heat pump pay off in Harker Heights, TX?
Harker Heights technically pencils out, but only past the point the equipment would need replacing anyway. Against a like-for-like gas furnace and AC swap, going electric costs $5,500 more up front here. Harker Heights's residents would see roughly $316 a year back in running costs, putting the payback around 17.4 years. That's a technicality, not a recommendation, for anyone actually living in Harker Heights.
Compare against another city
Harker Heights is one of 3206 cities covered here, each run through the same model. Search another below.
Harker Heights's weather, in the numbers that matter
1439 heating degree days pile up here every year, so Harker Heights barely has a winter to speak of; the cooling side runs to 2998 cooling degree days, where summers are severe enough that cooling can dominate the annual bill. The 99% winter design temperature here, the cold snap equipment must be sized for, not the seasonal average, is 17.1°F, and the coldest daily reading in the 2024 station record was 12.9°F. That puts the seasonal coefficient of performance at 3.11 for the recommended cold-climate unit. Mild on average, but the occasional cold snap is what sizes the equipment: at a 17.1°F design temperature Harker Heights falls just under the 25°F line where a standard heat pump starts leaning on resistance backup, so the model prices a cold-climate unit to be safe. Climate figures trace to the nearest NOAA station, Killeen Municipal Airport, 2.9 miles from Harker Heights.
The yearly running costs in Harker Heights
Modelled on a typical 2000-square-foot house, the heat pump draws about 1,172 kWh a year to keep it warm, plus cooling, for a combined electric bill near $602 a year. That compares with roughly 15 Mcf a year of gas at Harker Heights's $19.42 per-Mcf rate, about $919 a year with the old AC included, against a local electricity rate of 16.15¢/kWh. Priced as a standalone purchase, with a working furnace ripped out early, payback would take longer than the 15-year equipment life. Measured against the like-for-like replacement instead, a household here ends 15 years $753 behind.
How sensitive Harker Heights's result is to prices
In Harker Heights 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 Harker Heights: the heat pump is worth it within a decade if it costs less than $3,160 more than replacing the furnace and AC, and within 7 years if the gap is under $2,212.
The other scenario: no gas furnace to begin with
Gas isn't universal in Harker Heights, many houses run on electric heat already. Compared with baseboard or electric-furnace resistance heat, the numbers shift in the heat pump’s favor. The gap still doesn't close: the $10,000 incremental cost outlasts the 15-year equipment life here even against resistance heat.
How Harker Heights compares nationally
Harker Heights lands at position 2711 out of 3206 cities on heating severity (coldest is 1), and 1163 out of 3206 by population size (biggest is 1). 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 Harker Heights
Harker Heights, Texas is home to about 35,263 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. In Harker Heights, nothing is lost by holding off until the current equipment genuinely fails.
Line up a few local HVAC quotes before you decide.
More on how this number was built
Nothing above is a black box: the methodology guide shows the full arithmetic behind Harker Heights's 3.11 seasonal COP and payback figure. Harker Heights's 17.1°F design temperature falls on the cold side of the 25°F cutoff the cold-climate unit guide walks through.