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 $3,500 more up front here (already netting out a $2,000 tax credit). That premium is recovered through $374 of lower running costs every year, landing the payback clock at roughly 9.3 years. It's a genuine toss-up here — Acworth's numbers don't point clearly either way.

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 record low of 10°F on file. Worked through the model, that's a seasonal COP of 3.17 on the cold-climate unit fit for this climate. Below the 25°F line where a standard machine starts leaning on resistance backup, Acworth sits firmly in cold-climate territory, so that's the class of unit priced here. Source: NOAA station COBB CO-MC COLLUM FLD ARPT, 5.8 miles from Acworth — the closest one on record.

The month-to-month numbers for 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 (electricity here runs 14.90¢/kWh). Buy it outright, not incrementally, and payback stretches to 36.1 years; over 15 years the net position sits $2,116 ahead.

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 $8,000 spent up front comes back in about 10.2 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.