Heat Pump Payback in Onalaska, WI
Should Onalaska switch to a heat pump?
Onalaska is a place where a heat pump genuinely costs more to operate than the alternative. Against a like-for-like gas furnace and AC swap, going electric costs $5,500 more up front here. Running costs here land $381 a year higher than the furnace it replaces, so that premium is never recovered. That's Onalaska's own climate and rates talking, not a hedge or a caveat.
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How cold Onalaska actually gets
Onalaska has a cold winter that leans hard on heating equipment, 5707 heating degree days a year against a 65°F base, and summers add a moderate cooling load, at 807 cooling degree days. The 99% winter design temperature here, the cold snap equipment must be sized for, not the seasonal average, is -8°F, and the coldest daily reading in the 2024 station record was -11.9°F. That puts the seasonal coefficient of performance at 2.51 for the recommended cold-climate unit. Below the 25°F line where a standard machine starts leaning on resistance backup, Onalaska sits firmly in cold-climate territory, so that's the class of unit priced here. Source: NOAA station La Crosse Municipal Airport, 2.5 miles from Onalaska, the closest one on record.
What it actually costs to run, year to year
A 2000-square-foot house here would pull roughly 5,757 heating kilowatt-hours annually on top of cooling, totalling about $1,216 a year on electricity. The gas furnace it replaces burns roughly 59 Mcf a year at $10.74 per Mcf here, for a running cost near $836 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: $11,208 behind after 15 years compared with replacing the furnace and AC like-for-like.
What would change Onalaska's answer
For the verdict in Onalaska to flip, electricity would need to drop to about 11.8¢/kWh from 18.87¢, or gas climb past $17.14 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 Onalaska; the case for one here rests on comfort, cooling, or replacing electric heat instead.
The other scenario: no gas furnace to begin with
Not every home in Onalaska has gas service. Compared with baseboard or electric-furnace resistance heat, the numbers shift in the heat pump’s favor. The saving here runs about $1,708 a year, which recovers the extra $10,000 spent going electric in roughly 5.9 years.
Where Onalaska ranks in this dataset
Ranked against the other 3206 cities covered, Onalaska comes in at 314 for heating severity, 1 would be the coldest place in the dataset, and 1936 by population, where 1 is largest. 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 Onalaska
Onalaska, Wisconsin is home to about 19,898 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 Onalaska, nothing is lost by holding off until the current equipment genuinely fails.
Get quotes from local HVAC contractors before deciding.
Reading further on this page's numbers
The methodology guide walks through exactly how Onalaska's 2.51 seasonal COP and the rest of this page's numbers get built. At a -8°F design temperature, Onalaska sits in cold-climate territory; the guide to that class of unit explains why.