Heat Pump Payback in Denton, TX
Is a heat pump worth it in Denton?
The payback math works in Denton on paper, past the equipment's own working life. Against a like-for-like gas furnace and AC swap, going electric costs $5,500 more up front here. That premium is recovered through $350 of lower running costs every year, landing the payback clock at roughly 15.7 years. That's a technicality, not a recommendation, for anyone actually living in Denton.
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How cold Denton actually gets
2081 heating degree days pile up here every year, so Denton 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. 10.9°F is the figure equipment gets sized against here, the 99th-percentile cold snap, not an average day, with a low of 9°F in the 2024 station record. Worked through the model, that's a seasonal COP of 2.96 on the cold-climate unit fit for this climate. Mild on average, but the occasional cold snap is what sizes the equipment: at a 10.9°F design temperature Denton 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, Denton Municipal Airport, 3.4 miles from Denton.
The yearly running costs in Denton
Modelled on a typical 2000-square-foot house, the heat pump draws about 1,780 kWh a year to keep it warm, plus cooling, for a combined electric bill near $704 a year. Denton'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. If the current system still worked and you replaced it anyway, the full cost would take longer than the 15-year equipment life to earn back; against buying a new furnace and AC regardless, the 15-year total lands $252 behind.
How sensitive Denton's result is to prices
Gas would only overtake the heat pump in Denton if electricity rose past 95.7¢/kWh from 16.15¢, or gas fell under $3.28 per Mcf from $19.42. A useful quote test for Denton: the heat pump is worth it within a decade if it costs less than $3,500 more than replacing the furnace and AC, and within 7 years if the gap is under $2,450.
The other scenario: no gas furnace to begin with
Gas isn't universal in Denton, many houses run on electric heat already. Swap the comparison to resistance heat instead of gas, and Denton's answer improves. The saving here runs about $780 a year, which recovers the extra $10,000 spent going electric in roughly 12.8 years.
Where Denton ranks in this dataset
Denton lands at position 2391 out of 3206 cities on heating severity (coldest is 1), and 161 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.
Deciding what's next in Denton, TX
Denton, Texas is home to about 165,998 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 Denton, nothing is lost by holding off until the current equipment genuinely fails.
Get quotes from local HVAC contractors before deciding.
More on how this number was built
The methodology guide walks through exactly how Denton's 2.96 seasonal COP and the rest of this page's numbers get built. Denton'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.