Should Brookhaven switch to a heat pump?
Brookhaven sits right on the fence — how long you'll own the house decides this one. Swap a failed furnace and AC for a heat pump rather than buying like-for-like, and the extra cost here runs $3,500 after a $2,000 federal tax credit. That premium is recovered through $253 of lower running costs every year, landing the payback clock at roughly 13.9 years. Whether that's worth it in Brookhaven depends on how many years you expect to own the place.
The climate behind Brookhaven's payback figure
Degree days tell the story here: Brookhaven racks up 1651 heating degree days each year (base 65°F), and summers are hot enough that cooling matters as much as heating, with 2414 cooling degree days on the cooling side. Sizing runs off the design temperature, not the average day: 23°F here (record low 12°F), which works out to a seasonal COP of 3.25 for the cold-climate class of unit this climate calls for. Brookhaven 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, MCOM/PIKE CO/J E LWS FD AP, 27.5 miles from Brookhaven.
What it actually costs to run, year to year
Electricity use for heating alone comes out to about 1,286 kWh a year on the 2000-square-foot reference house; folding in cooling puts the electric bill near $517 a year. That compares with roughly 17 Mcf a year of gas at Brookhaven's 16.64 per-Mcf rate — about $770 a year — against a local electricity rate of 15.47¢/kWh. Buy it outright, not incrementally, and payback stretches to 53.4 years; over 15 years the net position sits $290 ahead.
If your home heats with electric baseboard instead of gas
Not every home in Brookhaven has gas service. Compared with baseboard or electric-furnace resistance heat, the numbers shift in the heat pump’s favor. The saving here runs about $613 a year, which recovers the extra $8,000 spent going electric in roughly 13 years.
How Brookhaven compares nationally
Among 3206 cities, Brookhaven's winter puts it at rank 2623 for severity, while its size puts it at rank 2869 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.
What to do with this number in Brookhaven
About 11,654 people live in Brookhaven, 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.
Line up a few local HVAC quotes before you decide.
More on how this number was built
Nothing above is a black box: the methodology guide shows the full arithmetic behind Brookhaven's 3.25 seasonal COP and payback figure. Brookhaven's 23°F design temperature falls on the cold side of the 25°F cutoff the cold-climate unit guide walks through.