Heat Pump Payback in Southaven, MS
Should Southaven switch to a heat pump?
Southaven technically pencils out, but only past the point the equipment would need replacing anyway. 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 $265 saved annually, for a payback of roughly 20.8 years. Southaven's own numbers say this pencils out only in theory, not in practice.
Checking a different city
This runs the same numbers for 3206 US cities, not just Southaven. Look one up here.
Why Southaven's climate drives this number
Degree days tell the story here: Southaven racks up 2396 heating degree days each year (base 65°F), and summers are hot enough that cooling matters as much as heating, with 2383 cooling degree days on the cooling side. Sizing runs off the design temperature, not the average day: 12°F here (coldest 2024 reading 1.9°F), which works out to a seasonal COP of 2.99 for the cold-climate class of unit this climate calls for. The average winter here is gentle, but sizing follows the cold snaps, and 12°F is below the 25°F point where a standard unit leans on resistance backup, so a cold-climate unit is what gets priced for Southaven. Climate figures trace to the nearest NOAA station, Memphis International Airport, 7.3 miles from Southaven.
The yearly running costs in Southaven
Electricity use for heating alone comes out to about 2,029 kWh a year on the 2000-square-foot reference house; folding in cooling puts the electric bill near $628 a year. Southaven's gas rate of $16.64 per Mcf, applied to the 25 Mcf a year the furnace burns, puts the current furnace-and-AC running cost near $893 a year, against 15.47¢ per kWh for electricity. 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 $1,528 behind.
What would change Southaven's answer
This result holds unless electricity climbs above 42.7¢/kWh (it is 15.47¢ now) or gas drops below $6.03 per Mcf (now $16.64); past either point, gas becomes the cheaper fuel in Southaven. When quotes arrive, compare the heat pump price with a like-for-like furnace and AC replacement: at $265 a year saved, a difference under $1,855 pays back within 7 years here, and under $2,650 within 10.
Electric resistance heat in Southaven, compared
Not every home in Southaven 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 $788 a year comes back this way, enough that the 12.7-year payback clears the $10,000 premium comfortably within the equipment's life.
Where Southaven ranks in this dataset
Among 3206 cities, Southaven's winter puts it at rank 2238 for severity, while its size puts it at rank 712 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.
Deciding what's next in Southaven, MS
About 57,493 people live in Southaven, Mississippi, 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.
Get quotes from local HVAC contractors before deciding.
More on how this number was built
Nothing above is a black box: the methodology guide shows the full arithmetic behind Southaven's 2.99 seasonal COP and payback figure. Southaven's 12°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.