Heat pump vs. gas furnace in Loganville, GA
Loganville sits right on the fence — how long you'll own the house decides this one. $3,500 is what Loganville 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. Loganville's residents would see roughly $331 a year back in running costs, putting the payback around 10.6 years. Whether that's worth it in Loganville depends on how many years you expect to own the place.
Why Loganville's climate drives this number
Degree days tell the story here: Loganville racks up 2526 heating degree days each year (base 65°F), and summers are hot enough that cooling matters as much as heating, with 1755 cooling degree days on the cooling side. Sizing runs off the design temperature, not the average day: 10.9°F here (record low 10.9°F), which works out to a seasonal COP of 2.96 for the cold-climate class of unit this climate calls for. A cold-climate unit is the right call in Loganville — below 25°F design temperature, a standard heat pump leans hard on electric-resistance backup, which erases most of the savings. These numbers come from GWINNETT CO-BRISCOE FD APT, the closest NOAA station, 11.1 miles out.
The month-to-month numbers for Loganville
Electricity use for heating alone comes out to about 2,161 kWh a year on the 2000-square-foot reference house; folding in cooling puts the electric bill near $545 a year. Loganville's gas rate of 20.42 per Mcf, applied to the 26 Mcf a year the furnace burns, puts its running cost near $876 a year, against 14.90¢ per kWh for electricity. Buy it outright, not incrementally, and payback stretches to 40.8 years; over 15 years the net position sits $1,468 ahead.
Electric resistance heat in Loganville, compared
Not every home in Loganville 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 $747 a year comes back this way, enough that the 10.7-year payback clears the $8,000 premium comfortably within the equipment's life.
How Loganville compares nationally
Loganville lands at position 2159 out of 3206 cities on heating severity (coldest is 1), and 2208 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.
Next step for 16,862 people in Loganville
About 16,862 people live in Loganville, 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.
Reading further on this page's numbers
The methodology guide walks through exactly how Loganville's 2.96 seasonal COP and the rest of this page's numbers get built. At a 10.9°F design temperature, Loganville sits in cold-climate territory; the guide to that class of unit explains why.