Heat pump vs. gas furnace in Dallas, TX
Dallas sits right on the fence — how long you'll own the house decides this one. Swap a failed furnace and AC for a heat pump rather than buying like-for-like, and the extra cost here runs $3,500 after a $2,000 federal tax credit. Lower bills claw that back: about $360 saved annually, for a payback of roughly 9.7 years. Whether that's worth it in Dallas depends on how many years you expect to own the place.
Why Dallas's climate drives this number
Degree days tell the story here: Dallas racks up 1633 heating degree days each year (base 65°F), and summers are severe enough that cooling can dominate the annual bill, with 3396 cooling degree days on the cooling side. 18°F is the figure equipment gets sized against here — the 99th-percentile cold snap, not an average day — with a record low of 10°F on file. Worked through the model, that's a seasonal COP of 3.13 on the cold-climate unit fit for this climate. A cold-climate unit is the right call in Dallas — below 25°F design temperature, a standard heat pump leans hard on electric-resistance backup, which erases most of the savings. Source: NOAA station DALLAS LOVE FIELD AIRPORT, 6.6 miles from Dallas — the closest one on record.
What it actually costs to run, year to year
Electricity use for heating alone comes out to about 1,321 kWh a year on the 2000-square-foot reference house; folding in cooling puts the electric bill near $681 a year. The gas furnace it replaces burns roughly 17 Mcf a year at 19.42 per Mcf here, for a running cost near $1,041 a year (electricity here runs 16.15¢/kWh). Looked at as a full purchase rather than an incremental one, payback here is roughly 37.5 years, leaving the 15-year total $1,901 ahead.
The other scenario: no gas furnace to begin with
Gas isn't universal in Dallas — many houses run on electric heat already. Swap the comparison to resistance heat instead of gas, and Dallas's answer improves. Switching saves about $698 a year here — a heat pump moving heat rather than generating it needs far less electricity than resistance coils — so the extra $8,000 spent up front comes back in about 11.5 years.
Dallas against the rest of the country
Ranked against the other 3206 cities covered, Dallas comes in at 2626 for heating severity — 1 would be the coldest place in the dataset — and 9 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.
Next step for 1,326,087 people in Dallas
About 1,326,087 people live in Dallas, Texas, and every number on this page is what a contractor would actually work from when quoting a system here — the point isn't to replace that quote, it's to tell you whether to bother asking for one. Here, there's no cost penalty to waiting until your current furnace or AC actually needs replacing.
Line up a few local HVAC quotes before you decide.
Where Dallas's figure comes from
Nothing above is a black box: the methodology guide shows the full arithmetic behind Dallas's 3.13 seasonal COP and payback figure. Dallas's 18°F design temperature falls on the cold side of the 25°F cutoff the cold-climate unit guide walks through.