Heat Pump Payback in Windsor, WI
Should Windsor switch to a heat pump?
In Windsor, 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 $403 more a year to run than the furnace it replaces, a premium with no payback. That's Windsor's own climate and rates talking, not a hedge or a caveat.
Checking a different city
Windsor is one of 3206 cities covered here, each run through the same model. Search another below.
How cold Windsor actually gets
Degree days tell the story here: Windsor racks up 5775 heating degree days each year (base 65°F), and summers add a moderate cooling load, with 761 cooling degree days on the cooling side. The 99% winter design temperature here, the cold snap equipment must be sized for, not the seasonal average, is -9°F, and the coldest daily reading in the 2024 station record was -11°F. That puts the seasonal coefficient of performance at 2.48 for the recommended cold-climate unit. Below the 25°F line where a standard machine starts leaning on resistance backup, Windsor sits firmly in cold-climate territory, so that's the class of unit priced here. Source: NOAA station Dane Co Regional-Truax Field, 7.9 miles from Windsor, the closest one on record.
The yearly running costs in Windsor
Electricity use for heating alone comes out to about 5,896 kWh a year on the 2000-square-foot reference house; folding in cooling puts the electric bill near $1,235 a year. The gas furnace it replaces burns roughly 60 Mcf a year at $10.74 per Mcf here, for a running cost near $832 a year including the old AC (electricity here runs 18.87¢/kWh). Because the heat pump costs more to run here, the gap only widens with time: $11,545 behind after 15 years compared with replacing the furnace and AC like-for-like.
The break-even point in Windsor
For the verdict in Windsor to flip, electricity would need to drop to about 11.6¢/kWh from 18.87¢, or gas climb past $17.44 per Mcf from $10.74. A utility offering a lower heat pump rate can change this. Until then, no quote price makes a heat pump pay back against gas in Windsor; the case for one here rests on comfort, cooling, or replacing electric heat instead.
If your home heats with electric baseboard instead of gas
Not every home in Windsor has gas service. Compared with baseboard or electric-furnace resistance heat, the numbers shift in the heat pump’s favor. Switching saves about $1,710 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 5.8 years.
How Windsor compares nationally
Windsor lands at position 293 out of 3206 cities on heating severity (coldest is 1), and 3206 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 Windsor
Windsor, Wisconsin is home to about 10,005 people, and the figures above are the same ones a local HVAC contractor uses to size and quote a system, this site doesn't guess where a real quote would land, it just tells you whether it's worth asking for one. In Windsor, nothing is lost by holding off until the current equipment genuinely fails.
Ask a local HVAC contractor for a quote before committing either way.
Where Windsor's figure comes from
Every constant behind this page, the 2.48 seasonal COP, the degree-day corrections, the equipment costs, is documented in the methodology guide. Windsor's -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.