Nacogdoches, TX: the heat pump payback math
Nacogdoches clears a genuine payback here, inside a reasonable stretch of years. Against a like-for-like gas furnace and AC swap, going electric costs $1,000 more up front here (already netting out a $2,000 tax credit). Nacogdoches's residents would see roughly $293 a year back in running costs, putting the payback around 3.4 years. The window here is reasonable, and it's specific to what Nacogdoches actually pays for power and gas.
How cold Nacogdoches actually gets
Nacogdoches barely has a winter to speak of — 1366 heating degree days a year against a 65°F base — and summers are severe enough that cooling can dominate the annual bill, at 2851 cooling degree days. Sizing runs off the design temperature, not the average day: 26.1°F here (record low 14°F), which works out to a seasonal COP of 2.98 for the standard class of unit this climate calls for. Nacogdoches's winters don't get cold enough to need the cold-climate premium — a standard unit holds up fine. These numbers come from ANGELINA COUNTY AIRPORT, the closest NOAA station, 26.7 miles out.
The month-to-month numbers for Nacogdoches
Modelled on a typical 2000-square-foot house, the heat pump draws about 1,161 kWh a year to keep it warm, plus cooling, for a combined electric bill near $580 a year. Nacogdoches's gas rate of 19.42 per Mcf, applied to the 14 Mcf a year the furnace burns, puts its running cost near $873 a year, against 16.15¢ per kWh for electricity. Priced as a standalone purchase rather than against a like-for-like replacement, equipment payback runs about 37.5 years, for a 15-year net position $3,394 ahead.
The other scenario: no gas furnace to begin with
Gas isn't universal in Nacogdoches — many houses run on electric heat already. Compared with baseboard or electric-furnace resistance heat, the numbers shift in the heat pump’s favor. Switching saves about $575 a year here — a heat pump moving heat rather than generating it needs far less electricity than resistance coils — so the extra $5,500 spent up front comes back in about 9.6 years.
Nacogdoches against the rest of the country
Ranked against the other 3206 cities covered, Nacogdoches comes in at 2743 for heating severity — 1 would be the coldest place in the dataset — and 1264 by population, where 1 is largest. That's the mildest third of cities covered, where utility rates carry more of the answer than climate does.
Deciding what's next in Nacogdoches, TX
Nacogdoches, Texas is home to about 32,381 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. Given the math above, Nacogdoches is a place worth lining up quotes ahead of a breakdown, not waiting for one.
Line up a few local HVAC quotes before you decide.
More on how this number was built
The methodology guide walks through exactly how Nacogdoches's 2.98 seasonal COP and the rest of this page's numbers get built. The $2,000 federal credit baked into Nacogdoches's number is explained, with the before-and-after math, in the tax credit guide.