Heat Pump Payback in Midlothian, IL
Midlothian, IL: the heat pump payback math
In Midlothian, a heat pump would cost more to run each year than what you have now. $5,500 is what Midlothian would pay extra to go electric rather than replace the furnace and AC with the same again. The heat pump would cost about $151 more a year to run than the furnace it replaces, a premium with no payback. That's Midlothian's own climate and rates talking, not a hedge or a caveat.
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Midlothian's weather, in the numbers that matter
Degree days tell the story here: Midlothian racks up 4543 heating degree days each year (base 65°F), and summers are hot enough that cooling matters as much as heating, with 1348 cooling degree days on the cooling side. The 99% winter design temperature here, the cold snap equipment must be sized for, not the seasonal average, is 1.9°F, and the coldest daily reading in the 2024 station record was -9°F. That puts the seasonal coefficient of performance at 2.75 for the recommended cold-climate unit. Below the 25°F line where a standard machine starts leaning on resistance backup, Midlothian sits firmly in cold-climate territory, so that's the class of unit priced here. Climate figures trace to the nearest NOAA station, Chicago Midway International Airport, 11.2 miles from Midlothian.
Midlothian's running-cost comparison, in dollars
Electricity use for heating alone comes out to about 4,183 kWh a year on the 2000-square-foot reference house; folding in cooling puts the electric bill near $1,016 a year. The gas furnace it replaces burns roughly 47 Mcf a year at $11.25 per Mcf here, for a running cost near $865 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: $7,767 behind after 15 years compared with replacing the furnace and AC like-for-like.
How sensitive Midlothian's result is to prices
For the verdict in Midlothian to flip, electricity would need to drop to about 14.8¢/kWh from 19.06¢, or gas climb past $14.44 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 Midlothian; 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 Midlothian, many houses run on electric heat already. Swap the comparison to resistance heat instead of gas, and Midlothian's answer improves. Switching saves about $1,509 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 6.6 years.
How Midlothian compares nationally
Midlothian lands at position 1164 out of 3206 cities on heating severity (coldest is 1), and 2533 out of 3206 by population size (biggest is 1). That's the middle third for winter severity among the cities covered here.
What to do with this number in Midlothian
Midlothian, Illinois is home to about 13,870 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 Midlothian, nothing is lost by holding off until the current equipment genuinely fails.
Ask a local HVAC contractor for a quote before committing either way.
More on how this number was built
Nothing above is a black box: the methodology guide shows the full arithmetic behind Midlothian's 2.75 seasonal COP and payback figure. Midlothian's 1.9°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.