Heat Pump Payback in Town and Country, MO
Should Town and Country switch to a heat pump?
In Town and Country, the extra upfront cost technically comes back, just not before the equipment wears out. Swap a failed furnace and AC for a heat pump rather than buying like-for-like, and the extra cost here runs $5,500. Lower bills claw that back: about $219 saved annually, for a payback of roughly 25.2 years. Town and Country's own numbers say this pencils out only in theory, not in practice.
Compare against another city
This runs the same numbers for 3206 US cities, not just Town and Country. Look one up here.
Why Town and Country's climate drives this number
Town and Country has a real but manageable winter, 3990 heating degree days a year against a 65°F base, and summers are hot enough that cooling matters as much as heating, at 1370 cooling degree days. 0°F is the figure equipment gets sized against here, the 99th-percentile cold snap, not an average day, with a low of -8°F in the 2024 station record. Worked through the model, that's a seasonal COP of 2.7 on the cold-climate unit fit for this climate. Town and Country needs the cold-climate class of unit: past a 25°F design temperature a standard heat pump falls back on resistance backup often enough to eat the savings. Climate figures trace to the nearest NOAA station, Spirit Of St Louis Airport, 9.8 miles from Town and Country.
Town and Country's running-cost comparison, in dollars
Modelled on a typical 2000-square-foot house, the heat pump draws about 3,742 kWh a year to keep it warm, plus cooling, for a combined electric bill near $630 a year. The gas furnace it replaces burns roughly 42 Mcf a year at $14.94 per Mcf here, for a running cost near $849 a year including the old AC (electricity here runs 12.83¢/kWh). Buying outright rather than at replacement time stretches payback to longer than the 15-year equipment life. Over 15 years, compared with a like-for-like replacement, the heat pump leaves you $2,220 behind.
What would change Town and Country's answer
This result holds unless electricity climbs above 19.8¢/kWh (it is 12.83¢ now) or gas drops below $9.68 per Mcf (now $14.94); past either point, gas becomes the cheaper fuel in Town and Country. When quotes arrive, compare the heat pump price with a like-for-like furnace and AC replacement: at $219 a year saved, a difference under $1,533 pays back within 7 years here, and under $2,190 within 10.
The other scenario: no gas furnace to begin with
Gas isn't universal in Town and Country, many houses run on electric heat already. Against electric-resistance heat, baseboard or an electric furnace, both 100% efficient but still just resistance, the case for switching gets stronger here. The saving here runs about $894 a year, which recovers the extra $10,000 spent going electric in roughly 11.2 years.
Town and Country against the rest of the country
Town and Country lands at position 1521 out of 3206 cities on heating severity (coldest is 1), and 2874 out of 3206 by population size (biggest is 1). That's the middle third for winter severity among the cities covered here.
Next step if you live in Town and Country
About 11,625 people live in Town and Country, Missouri, 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.
More on how this number was built
Every constant behind this page, the 2.7 seasonal COP, the degree-day corrections, the equipment costs, is documented in the methodology guide. Town and Country's 0°F design temperature is below the 25°F line, which is why a cold-climate unit is the right call here, see what that changes in the cold-climate unit guide.