Heat Pump Payback in Clinton, IA
Will a heat pump pay off in Clinton, IA?
Clinton is a place where a heat pump genuinely costs more to operate than the alternative. Swap a failed furnace and AC for a heat pump rather than buying like-for-like, and the extra cost here runs $5,500. Unfortunately the electric bill outweighs the gas bill it replaces by about $127 a year here, so the extra spend stays unrecovered. There's no spin on that: Clinton's numbers say wait.
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Clinton is one of 3206 cities covered here, each run through the same model. Search another below.
The climate behind Clinton's payback figure
Degree days tell the story here: Clinton racks up 5388 heating degree days each year (base 65°F), and summers add a moderate cooling load, with 917 cooling degree days on the cooling side. -15°F is the figure equipment gets sized against here, the 99th-percentile cold snap, not an average day, with a low of -18.9°F in the 2024 station record. Worked through the model, that's a seasonal COP of 2.34 on the cold-climate unit fit for this climate. Below the 25°F line where a standard machine starts leaning on resistance backup, Clinton sits firmly in cold-climate territory, so that's the class of unit priced here. These numbers come from Clinton Municipal Airport, the closest NOAA station, 4.7 miles out.
What it actually costs to run, year to year
Modelled on a typical 2000-square-foot house, the heat pump draws about 5,830 kWh a year to keep it warm, plus cooling, for a combined electric bill near $880 a year. That compares with roughly 56 Mcf a year of gas at Clinton's $10.61 per-Mcf rate, about $754 a year with the old AC included, against a local electricity rate of 13.31¢/kWh. With running costs higher every year, there is no payback at any purchase price; over 15 years, against a like-for-like replacement, a household here would end $7,398 behind.
How sensitive Clinton's result is to prices
The heat pump would become the cheaper option in Clinton if electricity fell to 11.0¢/kWh (from 13.31¢) or gas rose above $12.87 per Mcf (from $10.61). At today's prices a cheaper quote cannot rescue the gas comparison in Clinton, since there is no yearly saving to recover it from.
Electric resistance heat in Clinton, compared
Not every home in Clinton has gas service. Compared with baseboard or electric-furnace resistance heat, the numbers shift in the heat pump’s favor. Switching saves about $1,094 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 9.1 years.
Clinton against the rest of the country
Among 3206 cities, Clinton's winter puts it at rank 436 for severity, while its size puts it at rank 1658 for population, 1 in both cases being the extreme. That's the coldest third of the dataset, where climate does most of the work behind this figure.
What to do with this number in Clinton
About 24,118 people live in Clinton, Iowa, 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.
Get quotes from local HVAC contractors before deciding.
Reading further on this page's numbers
The methodology guide walks through exactly how Clinton's 2.34 seasonal COP and the rest of this page's numbers get built. Clinton's -15°F design temperature falls on the cold side of the 25°F cutoff the cold-climate unit guide walks through.