Heat Pump Payback in Clive, IA
Clive, IA: the heat pump payback math
Clive is a place where a heat pump genuinely costs more to operate than the alternative. Against a like-for-like gas furnace and AC swap, going electric costs $5,500 more up front here. The heat pump would cost about $70 more a year to run than the furnace it replaces, a premium with no payback. There's no spin on that: Clive's numbers say wait.
Checking a different city
This runs the same numbers for 3206 US cities, not just Clive. Look one up here.
Why Clive's climate drives this number
Degree days tell the story here: Clive racks up 4972 heating degree days each year (base 65°F), and summers are hot enough that cooling matters as much as heating, with 1291 cooling degree days on the cooling side. -11.9°F is the figure equipment gets sized against here, the 99th-percentile cold snap, not an average day, with a low of -17°F in the 2024 station record. Worked through the model, that's a seasonal COP of 2.41 on the cold-climate unit fit for this climate. Clive needs the cold-climate class of unit: past a 25°F design temperature a standard heat pump falls back on resistance backup often enough to eat the savings. Climate figures trace to the nearest NOAA station, Des Moines International Airp, 9.3 miles from Clive.
The yearly running costs in Clive
Modelled on a typical 2000-square-foot house, the heat pump draws about 5,224 kWh a year to keep it warm, plus cooling, for a combined electric bill near $842 a year. The gas furnace it replaces burns roughly 52 Mcf a year at $10.61 per Mcf here, for a running cost near $772 a year including the old AC (electricity here runs 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 $6,546 behind.
How sensitive Clive's result is to prices
The heat pump would become the cheaper option in Clive if electricity fell to 11.8¢/kWh (from 13.31¢) or gas rose above $11.96 per Mcf (from $10.61). At today's prices a cheaper quote cannot rescue the gas comparison in Clive, since there is no yearly saving to recover it from.
Electric resistance heat in Clive, compared
Not every home in Clive 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 $1,057 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 9.5 years.
Where Clive ranks in this dataset
Clive lands at position 745 out of 3206 cities on heating severity (coldest is 1), and 1968 out of 3206 by population size (biggest is 1). That's the coldest third of the dataset, where climate does most of the work behind this figure.
Next step if you live in Clive
About 19,508 people live in Clive, 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.
Line up a few local HVAC quotes before you decide.
Reading further on this page's numbers
The methodology guide walks through exactly how Clive's 2.41 seasonal COP and the rest of this page's numbers get built. At a -11.9°F design temperature, Clive sits in cold-climate territory; the guide to that class of unit explains why.