Should Brookhaven switch to a heat pump?
Brookhaven sits right on the fence — how long you'll own the house decides this one. Against a like-for-like gas furnace and AC swap, going electric costs $3,500 more up front here (already netting out a $2,000 tax credit). That premium is recovered through $344 of lower running costs every year, landing the payback clock at roughly 10.2 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
Brookhaven has a mild winter by US standards — 2569 heating degree days a year against a 65°F base — and summers are hot enough that cooling matters as much as heating, at 1846 cooling degree days. The 99% winter design temperature here — the cold snap equipment must be sized for, not the seasonal average — is 12°F, against a record low of 10.9°F. That puts the seasonal coefficient of performance at 2.99 for the recommended cold-climate unit. 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. Source: NOAA station DEKALB-PEACHTREE AIRPORT, 2.2 miles from Brookhaven — the closest one on record.
Brookhaven's running-cost comparison, in dollars
Electricity use for heating alone comes out to about 2,176 kWh a year on the 2000-square-foot reference house; folding in cooling puts the electric bill near $559 a year. Brookhaven's gas rate of 20.42 per Mcf, applied to the 27 Mcf a year the furnace burns, puts its running cost near $903 a year, against 14.90¢ per kWh for electricity. Buy it outright, not incrementally, and payback stretches to 39.2 years; over 15 years the net position sits $1,662 ahead.
If your home heats with electric baseboard instead of gas
Gas isn't universal in Brookhaven — 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 $767 a year, which recovers the extra $8,000 spent going electric in roughly 10.4 years.
How Brookhaven compares nationally
Among 3206 cities, Brookhaven's winter puts it at rank 2107 for severity, while its size puts it at rank 682 for population — 1 in both cases being the extreme. That's the middle third for winter severity among the cities covered here.
What to do with this number in Brookhaven
About 59,370 people live in Brookhaven, Georgia, 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.
Where Brookhaven's figure comes from
Nothing above is a black box: the methodology guide shows the full arithmetic behind Brookhaven's 2.99 seasonal COP and payback figure. At a 12°F design temperature, Brookhaven sits in cold-climate territory; the guide to that class of unit explains why.