Heat Pump Payback in Wausau, WI
Heat pump vs. gas furnace in Wausau, WI
Here in Wausau, the honest answer is that a heat pump raises your annual running cost. Against a like-for-like gas furnace and AC swap, going electric costs $5,500 more up front here. The heat pump would cost about $475 more a year to run than the furnace it replaces, a premium with no payback. That's Wausau's own climate and rates talking, not a hedge or a caveat.
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Wausau is one of 3206 cities covered here, each run through the same model. Search another below.
Wausau's weather, in the numbers that matter
6615 heating degree days pile up here every year, so Wausau has a cold winter that leans hard on heating equipment; the cooling side runs to 415 cooling degree days, where summers add a moderate cooling load. The 99% winter design temperature here, the cold snap equipment must be sized for, not the seasonal average, is -7.1°F, and the coldest daily reading in the 2024 station record was -9°F. That puts the seasonal coefficient of performance at 2.53 for the recommended cold-climate unit. Wausau 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. Source: NOAA station Wausau Downtown Airport, 2.4 miles from Wausau, the closest one on record.
The yearly running costs in Wausau
Electricity use for heating alone comes out to about 6,621 kWh a year on the 2000-square-foot reference house; folding in cooling puts the electric bill near $1,316 a year. The gas furnace it replaces burns roughly 69 Mcf a year at $10.74 per Mcf here, for a running cost near $841 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: $12,620 behind after 15 years compared with replacing the furnace and AC like-for-like.
What would change Wausau's answer
For the verdict in Wausau to flip, electricity would need to drop to about 11.5¢/kWh from 18.87¢, or gas climb past $17.63 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 Wausau; the case for one here rests on comfort, cooling, or replacing electric heat instead.
The other scenario: no gas furnace to begin with
Plenty of homes in Wausau heat with electricity alone, no gas line involved. Swap the comparison to resistance heat instead of gas, and Wausau's answer improves. The saving here runs about $1,946 a year, which recovers the extra $10,000 spent going electric in roughly 5.1 years.
Where Wausau ranks in this dataset
Wausau lands at position 77 out of 3206 cities on heating severity (coldest is 1), and 1023 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.
Deciding what's next in Wausau, WI
Wausau, Wisconsin is home to about 40,262 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 Wausau, nothing is lost by holding off until the current equipment genuinely fails.
Get quotes from local HVAC contractors before deciding.
More on how this number was built
Nothing above is a black box: the methodology guide shows the full arithmetic behind Wausau's 2.53 seasonal COP and payback figure. At a -7.1°F design temperature, Wausau sits in cold-climate territory; the guide to that class of unit explains why.