Heat pump vs. gas furnace in Frisco, TX
In Frisco, the math is close enough that it comes down to how long you plan to stay. 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 $361 saved annually, for a payback of roughly 9.7 years. It's a genuine toss-up here — Frisco's numbers don't point clearly either way.
Frisco's weather, in the numbers that matter
Degree days tell the story here: Frisco racks up 1620 heating degree days each year (base 65°F), and summers are severe enough that cooling can dominate the annual bill, with 3408 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 18.9°F, against a record low of 9.5°F. That puts the seasonal coefficient of performance at 3.15 for the recommended cold-climate unit. Below the 25°F line where a standard machine starts leaning on resistance backup, Frisco sits firmly in cold-climate territory, so that's the class of unit priced here. These numbers come from ADDISON AIRPORT, the closest NOAA station, 12.9 miles out.
What it actually costs to run, year to year
Modelled on a typical 2000-square-foot house, the heat pump draws about 1,302 kWh a year to keep it warm, plus cooling, for a combined electric bill near $680 a year. Frisco's gas rate of 19.42 per Mcf, applied to the 17 Mcf a year the furnace burns, puts its running cost near $1,041 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 37.4 years, for a 15-year net position $1,920 ahead.
The other scenario: no gas furnace to begin with
Not every home in Frisco has gas service. Compared with baseboard or electric-furnace resistance heat, the numbers shift in the heat pump’s favor. The saving here runs about $696 a year, which recovers the extra $8,000 spent going electric in roughly 11.5 years.
Where Frisco ranks in this dataset
Among 3206 cities, Frisco's winter puts it at rank 2642 for severity, while its size puts it at rank 97 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.
What to do with this number in Frisco
Frisco, Texas is home to about 235,208 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 Frisco, nothing is lost by holding off until the current equipment genuinely fails.
Get quotes from local HVAC contractors before deciding.
Where Frisco's figure comes from
Every constant behind this page — the 3.15 seasonal COP, the degree-day corrections, the equipment costs — is documented in the methodology guide. At a 18.9°F design temperature, Frisco sits in cold-climate territory; the guide to that class of unit explains why.