Should Rowlett switch to a heat pump?
Rowlett sits right on the fence — how long you'll own the house decides this one. $3,500 is what Rowlett would pay extra to go electric rather than replace the furnace and AC with the same again, once the $2,000 federal credit is applied. Rowlett's residents would see roughly $334 a year back in running costs, putting the payback around 10.5 years. Whether that's worth it in Rowlett depends on how many years you expect to own the place.
The climate behind Rowlett's payback figure
1853 heating degree days pile up here every year, so Rowlett has a mild winter by US standards; the cooling side runs to 2871 cooling degree days, where summers are severe enough that cooling can dominate the annual bill. 15.8°F is the figure equipment gets sized against here — the 99th-percentile cold snap, not an average day — with a record low of 9.5°F on file. Worked through the model, that's a seasonal COP of 3.08 on the cold-climate unit fit for this climate. A cold-climate unit is the right call in Rowlett — below 25°F design temperature, a standard heat pump leans hard on electric-resistance backup, which erases most of the savings. Climate figures trace to the nearest NOAA station, RALPH M HALL ROCKWALL MUNICIP, 6.7 miles from Rowlett.
The month-to-month numbers for Rowlett
Modelled on a typical 2000-square-foot house, the heat pump draws about 1,523 kWh a year to keep it warm, plus cooling, for a combined electric bill near $641 a year. Rowlett's gas rate of 19.42 per Mcf, applied to the 19 Mcf a year the furnace burns, puts its running cost near $976 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 40.4 years, for a 15-year net position $1,515 ahead.
The other scenario: no gas furnace to begin with
Plenty of homes in Rowlett heat with electricity alone, no gas line involved. Swap the comparison to resistance heat instead of gas, and Rowlett's answer improves. Switching saves about $717 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 11.2 years.
How Rowlett compares nationally
Rowlett lands at position 2506 out of 3206 cities on heating severity (coldest is 1), and 573 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.
What to do with this number in Rowlett
About 68,123 people live in Rowlett, 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.
Ask a local HVAC contractor for a quote before committing either way.
Where Rowlett's figure comes from
Every constant behind this page — the 3.08 seasonal COP, the degree-day corrections, the equipment costs — is documented in the methodology guide. Rowlett's 15.8°F design temperature falls on the cold side of the 25°F cutoff the cold-climate unit guide walks through.