Heat Pump Payback in Acworth, GA
Should Acworth switch to a heat pump?
Acworth 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 $5,500 more up front here. That premium is recovered through $374 of lower running costs every year, landing the payback clock at roughly 14.7 years. It's a genuine toss-up here, Acworth's numbers don't point clearly either way.
Checking a different city
Acworth is one of 3206 cities covered here, each run through the same model. Search another below.
Acworth's weather, in the numbers that matter
Acworth has a mild winter by US standards, 2508 heating degree days a year against a 65°F base, and summers are hot enough that cooling matters as much as heating, at 2112 cooling degree days. 19.4°F is the figure equipment gets sized against here, the 99th-percentile cold snap, not an average day, with a low of 10°F in the 2024 station record. Worked through the model, that's a seasonal COP of 3.17 on the cold-climate unit fit for this climate. Mild on average, but the occasional cold snap is what sizes the equipment: at a 19.4°F design temperature Acworth falls just under the 25°F line where a standard heat pump starts leaning on resistance backup, so the model prices a cold-climate unit to be safe. Source: NOAA station Cobb Co-Mc Collum Fld Airport, 5.8 miles from Acworth, the closest one on record.
The yearly running costs in Acworth
Electricity use for heating alone comes out to about 2,003 kWh a year on the 2000-square-foot reference house; folding in cooling puts the electric bill near $567 a year. The gas furnace it replaces burns roughly 26 Mcf a year at $20.42 per Mcf here, for a running cost near $941 a year including the old AC (electricity here runs 14.90¢/kWh). Buying outright rather than at replacement time stretches payback to longer than the 15-year equipment life. Over 15 years, compared with a like-for-like replacement, the heat pump leaves you $116 ahead.
What would change Acworth's answer
Gas would only overtake the heat pump in Acworth if electricity rose past 50.0¢/kWh from 14.90¢, or gas fell under $6.09 per Mcf from $20.42. A useful quote test for Acworth: the heat pump is worth it within a decade if it costs less than $3,740 more than replacing the furnace and AC, and within 7 years if the gap is under $2,618.
Electric resistance heat in Acworth, compared
Not every home in Acworth 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. Switching saves about $787 a year here, a heat pump moving heat rather than generating it needs far less electricity than resistance coils, so the extra $10,000 spent up front comes back in about 12.7 years.
Acworth against the rest of the country
Acworth lands at position 2179 out of 3206 cities on heating severity (coldest is 1), and 1741 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.
Deciding what's next in Acworth, GA
Acworth, Georgia is home to about 22,624 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 Acworth, nothing is lost by holding off until the current equipment genuinely fails.
Ask a local HVAC contractor for a quote before committing either way.
More on how this number was built
Every constant behind this page, the 3.17 seasonal COP, the degree-day corrections, the equipment costs, is documented in the methodology guide. Acworth's 19.4°F design temperature falls on the cold side of the 25°F cutoff the cold-climate unit guide walks through.