Is a heat pump worth it in Locust Grove?
In Locust Grove, the math is close enough that it comes down to how long you plan to stay. $3,500 is what Locust Grove 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 $341 saved annually, for a payback of roughly 10.3 years. It's a genuine toss-up here — Locust Grove's numbers don't point clearly either way.
How cold Locust Grove actually gets
2513 heating degree days pile up here every year, so Locust Grove has a mild winter by US standards; the cooling side runs to 1595 cooling degree days, where summers are hot enough that cooling matters as much as heating. Sizing runs off the design temperature, not the average day: 19.4°F here (record low 15.8°F), which works out to a seasonal COP of 3.17 for the cold-climate class of unit this climate calls for. Below the 25°F line where a standard machine starts leaning on resistance backup, Locust Grove sits firmly in cold-climate territory, so that's the class of unit priced here. These numbers come from GRIFFIN SPALDING COUNTY AIRPO, the closest NOAA station, 12.7 miles out.
Locust Grove's running-cost comparison, in dollars
A 2000-square-foot house here would pull roughly 2,007 heating kilowatt-hours annually on top of cooling, totalling about $502 a year on electricity. That compares with roughly 26 Mcf a year of gas at Locust Grove's 20.42 per-Mcf rate — about $842 a year — against a local electricity rate of 14.90¢/kWh. Priced as a standalone purchase rather than against a like-for-like replacement, equipment payback runs about 39.6 years, for a 15-year net position $1,611 ahead.
The other scenario: no gas furnace to begin with
Plenty of homes in Locust Grove heat with electricity alone, no gas line involved. Compared with baseboard or electric-furnace resistance heat, the numbers shift in the heat pump’s favor. About $754 a year comes back this way, enough that the 10.6-year payback clears the $8,000 premium comfortably within the equipment's life.
Locust Grove against the rest of the country
Locust Grove lands at position 2176 out of 3206 cities on heating severity (coldest is 1), and 2854 out of 3206 by population size (biggest is 1). 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 Locust Grove
Locust Grove, Georgia is home to about 11,749 people, and the figures above are the same ones a local HVAC contractor uses to size and quote a system — this site doesn't guess where a real quote would land, it just tells you whether it's worth asking for one. In Locust Grove, nothing is lost by holding off until the current equipment genuinely fails.
Ask a local HVAC contractor for a quote before committing either way.
Reading further on this page's numbers
The methodology guide walks through exactly how Locust Grove's 3.17 seasonal COP and the rest of this page's numbers get built. Locust Grove's 19.4°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.