Will a heat pump pay off in Terrell, TX?
In Terrell, the math is close enough that it comes down to how long you plan to stay. Against a like-for-like gas furnace and AC swap, going electric costs $3,500 more up front here (already netting out a $2,000 tax credit). That premium is recovered through $323 of lower running costs every year, landing the payback clock at roughly 10.8 years. It's a genuine toss-up here — Terrell's numbers don't point clearly either way.
How cold Terrell actually gets
Degree days tell the story here: Terrell racks up 1855 heating degree days each year (base 65°F), and summers are severe enough that cooling can dominate the annual bill, with 2790 cooling degree days on the cooling side. The 99% winter design temperature here — the cold snap equipment must be sized for, not the seasonal average — is 12.9°F, against a record low of 10°F. That puts the seasonal coefficient of performance at 3.01 for the recommended cold-climate unit. Below the 25°F line where a standard machine starts leaning on resistance backup, Terrell sits firmly in cold-climate territory, so that's the class of unit priced here. Climate figures trace to the nearest NOAA station, TERRELL MUNICIPAL AIRPORT, 2.1 miles from Terrell.
Terrell's running-cost comparison, in dollars
A 2000-square-foot house here would pull roughly 1,561 heating kilowatt-hours annually on top of cooling, totalling about $636 a year on electricity. The gas furnace it replaces burns roughly 19 Mcf a year at 19.42 per Mcf here, for a running cost near $959 a year (electricity here runs 16.15¢/kWh). Looked at as a full purchase rather than an incremental one, payback here is roughly 41.8 years, leaving the 15-year total $1,344 ahead.
The other scenario: no gas furnace to begin with
Gas isn't universal in Terrell — many houses run on electric heat already. Compared with baseboard or electric-furnace resistance heat, the numbers shift in the heat pump’s favor. About $706 a year comes back this way, enough that the 11.3-year payback clears the $8,000 premium comfortably within the equipment's life.
How Terrell compares nationally
Ranked against the other 3206 cities covered, Terrell comes in at 2504 for heating severity — 1 would be the coldest place in the dataset — and 1719 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.
What to do with this number in Terrell
Terrell, Texas is home to about 22,977 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 Terrell, nothing is lost by holding off until the current equipment genuinely fails.
Ask a local HVAC contractor for a quote before committing either way.
Where Terrell's figure comes from
Nothing above is a black box: the methodology guide shows the full arithmetic behind Terrell's 3.01 seasonal COP and payback figure. At a 12.9°F design temperature, Terrell sits in cold-climate territory; the guide to that class of unit explains why.