Heat pump vs. gas furnace in Grand Haven, MI
Here in Grand Haven, the honest answer is that a heat pump raises your annual running cost. Swap a failed furnace and AC for a heat pump rather than buying like-for-like, and the extra cost here runs $3,500 after a $2,000 federal tax credit. Unfortunately the electric bill outweighs the gas bill it replaces by about $246 a year here, so the extra spend stays unrecovered. There's no spin on that: Grand Haven's numbers say wait.
Why Grand Haven's climate drives this number
Grand Haven has a real but manageable winter — 4960 heating degree days a year against a 65°F base — and summers add a moderate cooling load, at 755 cooling degree days. 10.9°F is the figure equipment gets sized against here — the 99th-percentile cold snap, not an average day — with a record low of -0.9°F on file. Worked through the model, that's a seasonal COP of 2.96 on the cold-climate unit fit for this climate. Below the 25°F line where a standard machine starts leaning on resistance backup, Grand Haven sits firmly in cold-climate territory, so that's the class of unit priced here. Climate figures trace to the nearest NOAA station, MUSKEGON COUNTY AIRPORT, 8.1 miles from Grand Haven.
What it actually costs to run, year to year
Modelled on a typical 2000-square-foot house, the heat pump draws about 4,243 kWh a year to keep it warm, plus cooling, for a combined electric bill near $1,013 a year. Grand Haven's gas rate of 10.92 per Mcf, applied to the 52 Mcf a year the furnace burns, puts its running cost near $767 a year, against 20.72¢ per kWh for electricity. Priced as a standalone purchase rather than against a like-for-like replacement, equipment payback runs past the 15-year equipment life, for a 15-year net position $7,186 behind.
Electric resistance heat in Grand Haven, compared
Gas isn't universal in Grand Haven — 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 $1,793 a year comes back this way, enough that the 4.5-year payback clears the $8,000 premium comfortably within the equipment's life.
Grand Haven against the rest of the country
Grand Haven lands at position 796 out of 3206 cities on heating severity (coldest is 1), and 2980 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.
What to do with this number in Grand Haven
About 11,045 people live in Grand Haven, 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 Grand Haven's 2.96 seasonal COP and the rest of this page's numbers get built. Grand Haven's 10.9°F design temperature falls on the cold side of the 25°F cutoff the cold-climate unit guide walks through.