Tupelo, MS: the heat pump payback math
This one's marginal in Tupelo: it only clears if you stay long enough. $3,500 is what Tupelo 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. Lower bills claw that back: about $266 saved annually, for a payback of roughly 13.1 years. Whether that's worth it in Tupelo depends on how many years you expect to own the place.
The climate behind Tupelo's payback figure
2261 heating degree days pile up here every year, so Tupelo has a mild winter by US standards; the cooling side runs to 2460 cooling degree days, where summers are hot enough that cooling matters as much as heating. The 99% winter design temperature here — the cold snap equipment must be sized for, not the seasonal average — is 12.9°F, against a record low of 8.1°F. That puts the seasonal coefficient of performance at 3.01 for the recommended cold-climate unit. Below the 25°F line where a standard machine starts leaning on resistance backup, Tupelo sits firmly in cold-climate territory, so that's the class of unit priced here. Source: NOAA station TUPELO REGIONAL AIRPORT, 2.3 miles from Tupelo — the closest one on record.
What it actually costs to run, year to year
A 2000-square-foot house here would pull roughly 1,902 heating kilowatt-hours annually on top of cooling, totalling about $619 a year on electricity. The gas furnace it replaces burns roughly 24 Mcf a year at 16.64 per Mcf here, for a running cost near $885 a year (electricity here runs 15.47¢/kWh). Priced as a standalone purchase rather than against a like-for-like replacement, equipment payback runs about 50.7 years, for a 15-year net position $495 ahead.
If your home heats with electric baseboard instead of gas
Plenty of homes in Tupelo heat with electricity alone, no gas line involved. Against electric-resistance heat — baseboard or an electric furnace, both 100% efficient but still just resistance — the case for switching gets stronger here. Switching saves about $760 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 10.5 years.
How Tupelo compares nationally
Ranked against the other 3206 cities covered, Tupelo comes in at 2301 for heating severity — 1 would be the coldest place in the dataset — and 1101 by population, where 1 is largest. 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 Tupelo
About 37,775 people live in Tupelo, 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.
Ask a local HVAC contractor for a quote before committing either way.
Reading further on this page's numbers
Every constant behind this page — the 3.01 seasonal COP, the degree-day corrections, the equipment costs — is documented in the methodology guide. Tupelo's 12.9°F design temperature falls on the cold side of the 25°F cutoff the cold-climate unit guide walks through.