Should Manitowoc switch to a heat pump?
Here in Manitowoc, the honest answer is that a heat pump raises your annual running cost. $3,500 is what Manitowoc would pay extra to go electric rather than replace the furnace and AC with the same again, once the $2,000 federal credit is applied. Unfortunately the electric bill outweighs the gas bill it replaces by about $404 a year here, so the extra spend stays unrecovered. There's no spin on that: Manitowoc's numbers say wait.
Why Manitowoc's climate drives this number
Degree days tell the story here: Manitowoc racks up 6242 heating degree days each year (base 65°F), and summers add a moderate cooling load, with 381 cooling degree days on the cooling side. Sizing runs off the design temperature, not the average day: -2.9°F here (record low -8°F), which works out to a seasonal COP of 2.63 for the cold-climate class of unit this climate calls for. A cold-climate unit is the right call in Manitowoc — below 25°F design temperature, a standard heat pump leans hard on electric-resistance backup, which erases most of the savings. Climate figures trace to the nearest NOAA station, MANITOWOC COUNTY AIRPORT, 2.5 miles from Manitowoc.
What it actually costs to run, year to year
Modelled on a typical 2000-square-foot house, the heat pump draws about 6,010 kWh a year to keep it warm, plus cooling, for a combined electric bill near $1,195 a year. The gas furnace it replaces burns roughly 65 Mcf a year at 10.74 per Mcf here, for a running cost near $791 a year (electricity here runs 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 $9,560 behind.
If your home heats with electric baseboard instead of gas
Gas isn't universal in Manitowoc — many houses run on electric heat already. Against electric-resistance heat — baseboard or an electric furnace, both 100% efficient but still just resistance — the case for switching gets stronger here. About $1,880 a year comes back this way, enough that the 4.3-year payback clears the $8,000 premium comfortably within the equipment's life.
Manitowoc against the rest of the country
Manitowoc lands at position 136 out of 3206 cities on heating severity (coldest is 1), and 1188 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.
Next step for 34,616 people in Manitowoc
About 34,616 people live in Manitowoc, Wisconsin, 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.
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 Manitowoc's 2.63 seasonal COP and payback figure. At a -2.9°F design temperature, Manitowoc sits in cold-climate territory; the guide to that class of unit explains why.