Heat Pump Payback in Creve Coeur, MO
Is a heat pump worth it in Creve Coeur?
Creve Coeur technically pencils out, but only past the point the equipment would need replacing anyway. Against a like-for-like gas furnace and AC swap, going electric costs $5,500 more up front here. Lower bills claw that back: about $242 saved annually, for a payback of roughly 22.8 years. That's a technicality, not a recommendation, for anyone actually living in Creve Coeur.
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Creve Coeur is one of 3206 cities covered here, each run through the same model. Search another below.
How cold Creve Coeur actually gets
Degree days tell the story here: Creve Coeur racks up 3396 heating degree days each year (base 65°F), and summers are hot enough that cooling matters as much as heating, with 2013 cooling degree days on the cooling side. 1.9°F is the figure equipment gets sized against here, the 99th-percentile cold snap, not an average day, with a low of -7.1°F in the 2024 station record. Worked through the model, that's a seasonal COP of 2.75 on the cold-climate unit fit for this climate. Below the 25°F line where a standard machine starts leaning on resistance backup, Creve Coeur sits firmly in cold-climate territory, so that's the class of unit priced here. Climate figures trace to the nearest NOAA station, Lambert-St Louis Internationa, 7.3 miles from Creve Coeur.
What it actually costs to run, year to year
A 2000-square-foot house here would pull roughly 3,127 heating kilowatt-hours annually on top of cooling, totalling about $621 a year on electricity. That compares with roughly 35 Mcf a year of gas at Creve Coeur's $14.94 per-Mcf rate, about $863 a year with the old AC included, against a local electricity rate of 12.83¢/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 $1,874 behind.
How sensitive Creve Coeur's result is to prices
Gas would only overtake the heat pump in Creve Coeur if electricity rose past 23.6¢/kWh from 12.83¢, or gas fell under $8.11 per Mcf from $14.94. A useful quote test for Creve Coeur: the heat pump is worth it within a decade if it costs less than $2,420 more than replacing the furnace and AC, and within 7 years if the gap is under $1,694.
The other scenario: no gas furnace to begin with
Not every home in Creve Coeur 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. The saving here runs about $817 a year, which recovers the extra $10,000 spent going electric in roughly 12.2 years.
How Creve Coeur compares nationally
Among 3206 cities, Creve Coeur's winter puts it at rank 1799 for severity, while its size puts it at rank 2049 for population, 1 in both cases being the extreme. That's the middle third for winter severity among the cities covered here.
What to do with this number in Creve Coeur
Creve Coeur, Missouri is home to about 18,533 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 Creve Coeur, nothing is lost by holding off until the current equipment genuinely fails.
Get quotes from local HVAC contractors before deciding.
More on how this number was built
Nothing above is a black box: the methodology guide shows the full arithmetic behind Creve Coeur's 2.75 seasonal COP and payback figure. Creve Coeur's 1.9°F design temperature falls on the cold side of the 25°F cutoff the cold-climate unit guide walks through.