Heat pump vs. gas furnace in South Bend, IN
In South Bend, a heat pump would cost more to run each year than what you have now. Against a like-for-like gas furnace and AC swap, going electric costs $3,500 more up front here (already netting out a $2,000 tax credit). Unfortunately the electric bill outweighs the gas bill it replaces by about $143 a year here, so the extra spend stays unrecovered. That's South Bend's own climate and rates talking, not a hedge or a caveat.
South Bend's weather, in the numbers that matter
Degree days tell the story here: South Bend racks up 4978 heating degree days each year (base 65°F), and summers add a moderate cooling load, with 948 cooling degree days on the cooling side. Sizing runs off the design temperature, not the average day: -2°F here (record low -9°F), which works out to a seasonal COP of 2.65 for the cold-climate class of unit this climate calls for. South Bend 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. Source: NOAA station SOUTH BEND REGIONAL AIRPORT, 3.2 miles from South Bend — the closest one on record.
The month-to-month numbers for South Bend
Modelled on a typical 2000-square-foot house, the heat pump draws about 4,757 kWh a year to keep it warm, plus cooling, for a combined electric bill near $948 a year. The gas furnace it replaces burns roughly 52 Mcf a year at 11.49 per Mcf here, for a running cost near $805 a year (electricity here runs 17.03¢/kWh). Looked at as a full purchase rather than an incremental one, payback here is longer than the 15-year equipment life, leaving the 15-year total $5,642 behind.
Electric resistance heat in South Bend, compared
Plenty of homes in South Bend heat with electricity alone, no gas line involved. 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 $1,408 a year, which recovers the extra $8,000 spent going electric in roughly 5.7 years.
How South Bend compares nationally
Among 3206 cities, South Bend's winter puts it at rank 735 for severity, while its size puts it at rank 317 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.
Deciding what's next in South Bend, IN
South Bend, Indiana is home to about 103,713 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 Bend, nothing is lost by holding off until the current equipment genuinely fails.
Ask a local HVAC contractor for a quote before committing either way.
Where South Bend's figure comes from
Nothing above is a black box: the methodology guide shows the full arithmetic behind South Bend's 2.65 seasonal COP and payback figure. South Bend's -2°F design temperature falls on the cold side of the 25°F cutoff the cold-climate unit guide walks through.