Should Highland switch to a heat pump?
Highland is a place where a heat pump genuinely costs more to operate than the alternative. $3,500 is what Highland 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. The heat pump would cost about $74 more a year to run than the furnace it replaces — a premium with no payback. That's Highland's own climate and rates talking, not a hedge or a caveat.
Highland's weather, in the numbers that matter
3677 heating degree days pile up here every year, so Highland has a real but manageable winter; the cooling side runs to 1640 cooling degree days, where summers are hot enough that cooling matters as much as heating. 2.5°F is the figure equipment gets sized against here — the 99th-percentile cold snap, not an average day — with a record low of -3.8°F on file. Worked through the model, that's a seasonal COP of 2.76 on the cold-climate unit fit for this climate. A cold-climate unit is the right call in Highland — below 25°F design temperature, a standard heat pump leans hard on electric-resistance backup, which erases most of the savings. Source: NOAA station SCOTT AIR FORCE BASE/MIDAMERI, 17.6 miles from Highland — the closest one on record.
What it actually costs to run, year to year
Modelled on a typical 2000-square-foot house, the heat pump draws about 3,373 kWh a year to keep it warm, plus cooling, for a combined electric bill near $909 a year. The gas furnace it replaces burns roughly 38 Mcf a year at 11.25 per Mcf here, for a running cost near $836 a year (electricity here runs 19.06¢/kWh). Buy it outright, not incrementally, and payback stretches to beyond the 15-year equipment life; over 15 years the net position sits $4,604 behind.
The other scenario: no gas furnace to begin with
Gas isn't universal in Highland — 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. The saving here runs about $1,270 a year, which recovers the extra $8,000 spent going electric in roughly 6.3 years.
Highland against the rest of the country
Highland lands at position 1701 out of 3206 cities on heating severity (coldest is 1), and 3201 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 Highland
Highland, Illinois is home to about 10,028 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 Highland, 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
Every constant behind this page — the 2.76 seasonal COP, the degree-day corrections, the equipment costs — is documented in the methodology guide. At a 2.5°F design temperature, Highland sits in cold-climate territory; the guide to that class of unit explains why.