Heat Pump Payback in South Elgin, IL
Will a heat pump pay off in South Elgin, IL?
In South Elgin, a heat pump would cost more to run each year than what you have now. Swap a failed furnace and AC for a heat pump rather than buying like-for-like, and the extra cost here runs $5,500. The heat pump would cost about $295 more a year to run than the furnace it replaces, a premium with no payback. That's South Elgin'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 South Elgin. Look one up here.
How cold South Elgin actually gets
South Elgin has a cold winter that leans hard on heating equipment, 5064 heating degree days a year against a 65°F base, and summers add a moderate cooling load, at 915 cooling degree days. Sizing runs off the design temperature, not the average day: -7.1°F here (coldest 2024 reading -14.1°F), which works out to a seasonal COP of 2.53 for the cold-climate class of unit this climate calls for. A cold-climate unit is the right call in South Elgin, below 25°F design temperature, a standard heat pump leans hard on electric-resistance backup, which erases most of the savings. Source: NOAA station Dupage Airport, 6.3 miles from South Elgin, the closest one on record.
South Elgin's running-cost comparison, in dollars
Electricity use for heating alone comes out to about 5,068 kWh a year on the 2000-square-foot reference house; folding in cooling puts the electric bill near $1,115 a year. The gas furnace it replaces burns roughly 53 Mcf a year at $11.25 per Mcf here, for a running cost near $819 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: $9,930 behind after 15 years compared with replacing the furnace and AC like-for-like.
The break-even point in South Elgin
For the verdict in South Elgin to flip, electricity would need to drop to about 12.7¢/kWh from 19.06¢, or gas climb past $16.85 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 South Elgin; the case for one here rests on comfort, cooling, or replacing electric heat instead.
The other scenario: no gas furnace to begin with
Plenty of homes in South Elgin heat with electricity alone, no gas line involved. Swap the comparison to resistance heat instead of gas, and South Elgin's answer improves. About $1,555 a year comes back this way, enough that the 6.4-year payback clears the $10,000 premium comfortably within the equipment's life.
Where South Elgin ranks in this dataset
Among 3206 cities, South Elgin's winter puts it at rank 638 for severity, while its size puts it at rank 1610 for population, 1 in both cases being the extreme. 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 South Elgin
South Elgin, Illinois is home to about 24,921 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 South Elgin, nothing is lost by holding off until the current equipment genuinely fails.
Get quotes from local HVAC contractors before deciding.
More on how this number was built
The methodology guide walks through exactly how South Elgin's 2.53 seasonal COP and the rest of this page's numbers get built. South Elgin's -7.1°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.