Will a heat pump pay off in Sterling Heights, MI?
In Sterling Heights, a heat pump would cost more to run each year than what you have now. Against a like-for-like gas furnace and AC swap, going electric costs $3,500 more up front here (already netting out a $2,000 tax credit). Unfortunately the electric bill outweighs the gas bill it replaces by about $265 a year here, so the extra spend stays unrecovered. There's no spin on that: Sterling Heights's numbers say wait.
Why Sterling Heights's climate drives this number
Sterling Heights has a real but manageable winter — 4971 heating degree days a year against a 65°F base — and summers add a moderate cooling load, at 954 cooling degree days. Sizing runs off the design temperature, not the average day: 5.9°F here (record low -2.4°F), which works out to a seasonal COP of 2.84 for the cold-climate class of unit this climate calls for. Sterling Heights 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. These numbers come from OAKLAND/TROY AIRPORT, the closest NOAA station, 8 miles out.
The month-to-month numbers for Sterling Heights
Modelled on a typical 2000-square-foot house, the heat pump draws about 4,432 kWh a year to keep it warm, plus cooling, for a combined electric bill near $1,087 a year. Sterling Heights's gas rate of 10.92 per Mcf, applied to the 52 Mcf a year the furnace burns, puts its running cost near $822 a year, against 20.72¢ per kWh for electricity. Looked at as a full purchase rather than an incremental one, payback here is longer than the 15-year equipment life, leaving the 15-year total $7,480 behind.
Electric resistance heat in Sterling Heights, compared
Gas isn't universal in Sterling Heights — many houses run on electric heat already. Against electric-resistance heat — baseboard or an electric furnace, both 100% efficient but still just resistance — the case for switching gets stronger here. About $1,777 a year comes back this way, enough that the 4.5-year payback clears the $8,000 premium comfortably within the equipment's life.
Sterling Heights against the rest of the country
Sterling Heights lands at position 748 out of 3206 cities on heating severity (coldest is 1), and 219 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 for 134,342 people in Sterling Heights
About 134,342 people live in Sterling Heights, 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.
Ask a local HVAC contractor for a quote before committing either way.
Where Sterling Heights's figure comes from
Every constant behind this page — the 2.84 seasonal COP, the degree-day corrections, the equipment costs — is documented in the methodology guide. At a 5.9°F design temperature, Sterling Heights sits in cold-climate territory; the guide to that class of unit explains why.