Heat Pump Payback in Mount Vernon, OH
Should Mount Vernon switch to a heat pump?
In Mount Vernon, the extra upfront cost technically comes back, just not before the equipment wears out. Against a like-for-like gas furnace and AC swap, going electric costs $5,500 more up front here. Lower bills claw that back: about $23 saved annually, for a payback of roughly 235.1 years. Mount Vernon'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 Mount Vernon. Look one up here.
The climate behind Mount Vernon's payback figure
Mount Vernon has a real but manageable winter, 4580 heating degree days a year against a 65°F base, and summers add a moderate cooling load, at 793 cooling degree days. The 99% winter design temperature here, the cold snap equipment must be sized for, not the seasonal average, is 14°F, and the coldest daily reading in the 2024 station record was 5°F. That puts the seasonal coefficient of performance at 3.04 for the recommended cold-climate unit. A cold-climate unit is the right call in Mount Vernon, 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, Knox County Airport, 4.2 miles from Mount Vernon.
What it actually costs to run, year to year
A 2000-square-foot house here would pull roughly 3,815 heating kilowatt-hours annually on top of cooling, totalling about $826 a year on electricity. The gas furnace it replaces burns roughly 48 Mcf a year at $13.85 per Mcf here, for a running cost near $850 a year including the old AC (electricity here runs 18.40¢/kWh). If the current system still worked and you replaced it anyway, the full cost would take longer than the 15-year equipment life to earn back; against buying a new furnace and AC regardless, the 15-year total lands $5,149 behind.
How sensitive Mount Vernon's result is to prices
This result holds unless electricity climbs above 19.1¢/kWh (it is 18.40¢ now) or gas drops below $13.36 per Mcf (now $13.85); past either point, gas becomes the cheaper fuel in Mount Vernon. When quotes arrive, compare the heat pump price with a like-for-like furnace and AC replacement: at $23 a year saved, a difference under $161 pays back within 7 years here, and under $230 within 10.
Electric resistance heat in Mount Vernon, compared
Not every home in Mount Vernon has gas service. Against electric-resistance heat, baseboard or an electric furnace, both 100% efficient but still just resistance, the case for switching gets stronger here. About $1,497 a year comes back this way, enough that the 6.7-year payback clears the $10,000 premium comfortably within the equipment's life.
Mount Vernon against the rest of the country
Mount Vernon lands at position 1112 out of 3206 cities on heating severity (coldest is 1), and 2161 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 Mount Vernon
About 17,329 people live in Mount Vernon, Ohio, 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.
Reading further on this page's numbers
Nothing above is a black box: the methodology guide shows the full arithmetic behind Mount Vernon's 3.04 seasonal COP and payback figure. Mount Vernon's 14°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.