Heat Pump Payback in Detroit, MI
Is a heat pump worth it in Detroit?
In Detroit, a heat pump would cost more to run each year than what you have now. 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 $217 a year here, so the extra spend stays unrecovered. There's no spin on that: Detroit's numbers say wait.
Checking a different city
Landed on Detroit by mistake, or want to compare it against somewhere else? Search the other 3206 cities below.
Why Detroit's climate drives this number
Degree days tell the story here: Detroit racks up 4540 heating degree days each year (base 65°F), and summers are hot enough that cooling matters as much as heating, with 1217 cooling degree days on the cooling side. Sizing runs off the design temperature, not the average day: 5°F here (coldest 2024 reading 0°F), which works out to a seasonal COP of 2.82 for the cold-climate class of unit this climate calls for. A cold-climate unit is the right call in Detroit, below 25°F design temperature, a standard heat pump leans hard on electric-resistance backup, which erases most of the savings. Climate figures trace to the nearest NOAA station, Detroit City Airport, 5 miles from Detroit.
Detroit's running-cost comparison, in dollars
A 2000-square-foot house here would pull roughly 4,077 heating kilowatt-hours annually on top of cooling, totalling about $1,060 a year on electricity. Detroit's gas rate of $10.92 per Mcf, applied to the 47 Mcf a year the furnace burns, puts the current furnace-and-AC running cost near $843 a year, against 20.72¢ per kWh for electricity. 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 $8,748 behind.
How sensitive Detroit's result is to prices
The heat pump would become the cheaper option in Detroit if electricity fell to 14.6¢/kWh (from 20.72¢) or gas rose above $15.50 per Mcf (from $10.92). At today's prices a cheaper quote cannot rescue the gas comparison in Detroit, since there is no yearly saving to recover it from.
Electric resistance heat in Detroit, compared
Plenty of homes in Detroit heat with electricity alone, no gas line involved. 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 $1,649 a year, which recovers the extra $10,000 spent going electric in roughly 6.1 years.
Where Detroit ranks in this dataset
Detroit lands at position 1177 out of 3206 cities on heating severity (coldest is 1), and 26 out of 3206 by population size (biggest is 1). That's the middle third for winter severity among the cities covered here.
Next step if you live in Detroit
About 645,705 people live in Detroit, Michigan, 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.
Where Detroit's figure comes from
The methodology guide walks through exactly how Detroit's 2.82 seasonal COP and the rest of this page's numbers get built. Detroit's 5°F design temperature falls on the cold side of the 25°F cutoff the cold-climate unit guide walks through.