Heat Pump Payback in Ypsilanti, MI
Ypsilanti, MI: the heat pump payback math
In Ypsilanti, 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. The heat pump would cost about $331 more a year to run than the furnace it replaces, a premium with no payback. There's no spin on that: Ypsilanti's numbers say wait.
Compare against another city
This runs the same numbers for 3206 US cities, not just Ypsilanti. Look one up here.
Why Ypsilanti's climate drives this number
Degree days tell the story here: Ypsilanti racks up 5159 heating degree days each year (base 65°F), and summers add a moderate cooling load, with 837 cooling degree days on the cooling side. 1°F is the figure equipment gets sized against here, the 99th-percentile cold snap, not an average day, with a low of -5.1°F in the 2024 station record. Worked through the model, that's a seasonal COP of 2.72 on the cold-climate unit fit for this climate. A cold-climate unit is the right call in Ypsilanti, 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, Willow Run Airport, 4.6 miles from Ypsilanti.
The yearly running costs in Ypsilanti
A 2000-square-foot house here would pull roughly 4,803 heating kilowatt-hours annually on top of cooling, totalling about $1,143 a year on electricity. The gas furnace it replaces burns roughly 54 Mcf a year at $10.92 per Mcf here, for a running cost near $811 a year including the old AC (electricity here runs 20.72¢/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 $10,472 behind.
What would change Ypsilanti's answer
The heat pump would become the cheaper option in Ypsilanti if electricity fell to 13.2¢/kWh (from 20.72¢) or gas rose above $17.09 per Mcf (from $10.92). At today's prices a cheaper quote cannot rescue the gas comparison in Ypsilanti, since there is no yearly saving to recover it from.
The other scenario: no gas furnace to begin with
Gas isn't universal in Ypsilanti, many houses run on electric heat already. Swap the comparison to resistance heat instead of gas, and Ypsilanti's answer improves. Switching saves about $1,788 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 5.6 years.
How Ypsilanti compares nationally
Among 3206 cities, Ypsilanti's winter puts it at rank 585 for severity, while its size puts it at rank 1909 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.
Next step if you live in Ypsilanti
About 20,150 people live in Ypsilanti, 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.
Line up a few local HVAC quotes before you decide.
More on how this number was built
The methodology guide walks through exactly how Ypsilanti's 2.72 seasonal COP and the rest of this page's numbers get built. At a 1°F design temperature, Ypsilanti sits in cold-climate territory; the guide to that class of unit explains why.