Heat Pump Payback in Ferndale, MI
Will a heat pump pay off in Ferndale, MI?
Here in Ferndale, 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 $5,500. 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: Ferndale's numbers say wait.
Checking a different city
This runs the same numbers for 3206 US cities, not just Ferndale. Look one up here.
Why Ferndale's climate drives this number
Degree days tell the story here: Ferndale racks up 4971 heating degree days each year (base 65°F), and summers add a moderate cooling load, with 954 cooling degree days on the cooling side. 5.9°F is the figure equipment gets sized against here, the 99th-percentile cold snap, not an average day, with a low of -2.4°F in the 2024 station record. Worked through the model, that's a seasonal COP of 2.84 on the cold-climate unit fit for this climate. A cold-climate unit is the right call in Ferndale, below 25°F design temperature, a standard heat pump leans hard on electric-resistance backup, which erases most of the savings. Source: NOAA station Oakland/Troy Airport, 6.3 miles from Ferndale, the closest one on record.
The yearly running costs in Ferndale
A 2000-square-foot house here would pull roughly 4,432 heating kilowatt-hours annually on top of cooling, totalling about $1,087 a year on electricity. Ferndale's gas rate of $10.92 per Mcf, applied to the 52 Mcf a year the furnace burns, puts the current furnace-and-AC running cost near $822 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 $9,480 behind.
The break-even point in Ferndale
The heat pump would become the cheaper option in Ferndale if electricity fell to 14.1¢/kWh (from 20.72¢) or gas rose above $16.05 per Mcf (from $10.92). At today's prices a cheaper quote cannot rescue the gas comparison in Ferndale, since there is no yearly saving to recover it from.
Electric resistance heat in Ferndale, compared
Plenty of homes in Ferndale heat with electricity alone, no gas line involved. Swap the comparison to resistance heat instead of gas, and Ferndale's answer improves. The saving here runs about $1,777 a year, which recovers the extra $10,000 spent going electric in roughly 5.6 years.
Where Ferndale ranks in this dataset
Among 3206 cities, Ferndale's winter puts it at rank 771 for severity, while its size puts it at rank 1975 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 Ferndale
About 19,431 people live in Ferndale, 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.
Where Ferndale's figure comes from
Nothing above is a black box: the methodology guide shows the full arithmetic behind Ferndale's 2.84 seasonal COP and payback figure. Ferndale's 5.9°F design temperature is below the 25°F line, which is why a cold-climate unit is the right call here, see what that changes in the cold-climate unit guide.