Will a heat pump pay off in Alvin, TX?
A heat pump earns back its extra cost in Alvin 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 $318 saved annually, for a payback of roughly 3.1 years. The window here is reasonable, and it's specific to what Alvin actually pays for power and gas.
How cold Alvin actually gets
795 heating degree days pile up here every year, so Alvin barely has a winter to speak of; the cooling side runs to 3633 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°F here (record low 19.9°F), which works out to a seasonal COP of 3.15 for the standard class of unit this climate calls for. Alvin's winters don't get cold enough to need the cold-climate premium — a standard unit holds up fine. Source: NOAA station CLOVER FIELD AIRPORT, 6.6 miles from Alvin — the closest one on record.
What it actually costs to run, year to year
Modelled on a typical 2000-square-foot house, the heat pump draws about 639 kWh a year to keep it warm, plus cooling, for a combined electric bill near $603 a year. The gas furnace it replaces burns roughly 8 Mcf a year at 19.42 per Mcf here, for a running cost near $921 a year (electricity here runs 16.15¢/kWh). Priced as a standalone purchase rather than against a like-for-like replacement, equipment payback runs about 34.6 years, for a 15-year net position $3,766 ahead.
The other scenario: no gas furnace to begin with
Gas isn't universal in Alvin — many houses run on electric heat already. Swap the comparison to resistance heat instead of gas, and Alvin's answer improves. Switching saves about $482 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 11.4 years.
Alvin against the rest of the country
Alvin lands at position 2974 out of 3206 cities on heating severity (coldest is 1), and 1360 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 Alvin, TX
Alvin, Texas is home to about 29,869 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, Alvin is a place worth lining up quotes ahead of a breakdown, not waiting for one.
Get quotes from local HVAC contractors before deciding.
Reading further on this page's numbers
Every constant behind this page — the 3.15 seasonal COP, the degree-day corrections, the equipment costs — is documented in the methodology guide. The $2,000 federal credit baked into Alvin's number is explained, with the before-and-after math, in the tax credit guide.