Should Whitewater switch to a heat pump?

Here in Whitewater, 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 $334 a year here, so the extra spend stays unrecovered. That's Whitewater's own climate and rates talking, not a hedge or a caveat.

How cold Whitewater actually gets

Whitewater has a cold winter that leans hard on heating equipment — 5393 heating degree days a year against a 65°F base — and summers add a moderate cooling load, at 828 cooling degree days. -5.8°F is the figure equipment gets sized against here — the 99th-percentile cold snap, not an average day — with a record low of -14.8°F on file. Worked through the model, that's a seasonal COP of 2.56 on the cold-climate unit fit for this climate. Whitewater 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. Climate figures trace to the nearest NOAA station, ROCK COUNTY AIRPORT, 21.5 miles from Whitewater.

The month-to-month numbers for Whitewater

A 2000-square-foot house here would pull roughly 5,334 heating kilowatt-hours annually on top of cooling, totalling about $1,140 a year on electricity. That compares with roughly 56 Mcf a year of gas at Whitewater's 10.74 per-Mcf rate — about $806 a year — against a local electricity rate of 18.87¢/kWh. 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 $8,511 behind.

Electric resistance heat in Whitewater, compared

Gas isn't universal in Whitewater — many houses run on electric heat already. Compared with baseboard or electric-furnace resistance heat, the numbers shift in the heat pump’s favor. The saving here runs about $1,640 a year, which recovers the extra $8,000 spent going electric in roughly 4.9 years.

Whitewater against the rest of the country

Ranked against the other 3206 cities covered, Whitewater comes in at 433 for heating severity — 1 would be the coldest place in the dataset — and 2288 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 Whitewater

Whitewater, Wisconsin is home to about 16,076 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 Whitewater, 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

Nothing above is a black box: the methodology guide shows the full arithmetic behind Whitewater's 2.56 seasonal COP and payback figure. At a -5.8°F design temperature, Whitewater sits in cold-climate territory; the guide to that class of unit explains why.