Groves, TX: the heat pump payback math
A heat pump earns back its extra cost in Groves within a sensible timeframe. 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). Lower bills claw that back: about $301 saved annually, for a payback of roughly 3.3 years. The window here is reasonable, and it's specific to what Groves actually pays for power and gas.
How cold Groves actually gets
871 heating degree days pile up here every year, so Groves barely has a winter to speak of; the cooling side runs to 3316 cooling degree days, where summers are severe enough that cooling can dominate the annual bill. Sizing runs off the design temperature, not the average day: 32.2°F here (record low 21.9°F), which works out to a seasonal COP of 3.16 for the standard class of unit this climate calls for. Groves's winters don't get cold enough to need the cold-climate premium — a standard unit holds up fine. Climate figures trace to the nearest NOAA station, PORT ARTHUR, 5.5 miles from Groves.
Groves's running-cost comparison, in dollars
Modelled on a typical 2000-square-foot house, the heat pump draws about 698 kWh a year to keep it warm, plus cooling, for a combined electric bill near $569 a year. Groves's gas rate of 19.42 per Mcf, applied to the 9 Mcf a year the furnace burns, puts its running cost near $870 a year, against 16.15¢ per kWh for electricity. Buy it outright, not incrementally, and payback stretches to 36.6 years; over 15 years the net position sits $3,513 ahead.
The other scenario: no gas furnace to begin with
Gas isn't universal in Groves — many houses run on electric heat already. Swap the comparison to resistance heat instead of gas, and Groves's answer improves. About $481 a year comes back this way, enough that the 11.4-year payback clears the $5,500 premium comfortably within the equipment's life.
How Groves compares nationally
Among 3206 cities, Groves's winter puts it at rank 2942 for severity, while its size puts it at rank 2207 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.
Deciding what's next in Groves, TX
Groves, Texas is home to about 16,866 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, Groves is a place worth lining up quotes ahead of a breakdown, not waiting for one.
Ask a local HVAC contractor for a quote before committing either way.
Where Groves's figure comes from
Nothing above is a black box: the methodology guide shows the full arithmetic behind Groves's 3.16 seasonal COP and payback figure. The $2,000 federal credit baked into Groves's number is explained, with the before-and-after math, in the tax credit guide.