Heat Pump Payback in Kankakee, IL
Should Kankakee switch to a heat pump?
Kankakee 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. Unfortunately the electric bill outweighs the gas bill it replaces by about $255 a year here, so the extra spend stays unrecovered. That's Kankakee's own climate and rates talking, not a hedge or a caveat.
Not the city you meant?
This runs the same numbers for 3206 US cities, not just Kankakee. Look one up here.
Kankakee's weather, in the numbers that matter
Degree days tell the story here: Kankakee racks up 5005 heating degree days each year (base 65°F), and summers add a moderate cooling load, with 915 cooling degree days on the cooling side. -3.1°F is the figure equipment gets sized against here, the 99th-percentile cold snap, not an average day, with a low of -11.2°F in the 2024 station record. Worked through the model, that's a seasonal COP of 2.63 on the cold-climate unit fit for this climate. Kankakee 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, Greater Kankakee Airport, 2.3 miles from Kankakee.
Kankakee's running-cost comparison, in dollars
Modelled on a typical 2000-square-foot house, the heat pump draws about 4,819 kWh a year to keep it warm, plus cooling, for a combined electric bill near $1,067 a year. The gas furnace it replaces burns roughly 52 Mcf a year at $11.25 per Mcf here, for a running cost near $812 a year including the old AC (electricity here runs 19.06¢/kWh). Because the heat pump costs more to run here, the gap only widens with time: $9,321 behind after 15 years compared with replacing the furnace and AC like-for-like.
How sensitive Kankakee's result is to prices
For the verdict in Kankakee to flip, electricity would need to drop to about 13.3¢/kWh from 19.06¢, or gas climb past $16.14 per Mcf from $11.25. 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 Kankakee; the case for one here rests on comfort, cooling, or replacing electric heat instead.
If your home heats with electric baseboard instead of gas
Gas isn't universal in Kankakee, many houses run on electric heat already. Swap the comparison to resistance heat instead of gas, and Kankakee's answer improves. Switching saves about $1,574 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 6.4 years.
Where Kankakee ranks in this dataset
Kankakee lands at position 682 out of 3206 cities on heating severity (coldest is 1), and 1684 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 Kankakee, IL
Kankakee, Illinois is home to about 23,535 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 Kankakee, nothing is lost by holding off until the current equipment genuinely fails.
Line up a few local HVAC quotes before you decide.
More on how this number was built
The methodology guide walks through exactly how Kankakee's 2.63 seasonal COP and the rest of this page's numbers get built. Kankakee's -3.1°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.