Is a heat pump worth it in Indianapolis?
Indianapolis is a place where a heat pump genuinely costs more to operate than the alternative. $3,500 is what Indianapolis 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. Unfortunately the electric bill outweighs the gas bill it replaces by about $80 a year here, so the extra spend stays unrecovered. That's Indianapolis's own climate and rates talking, not a hedge or a caveat.
How cold Indianapolis actually gets
Indianapolis has a real but manageable winter — 4285 heating degree days a year against a 65°F base — and summers are hot enough that cooling matters as much as heating, at 1278 cooling degree days. Sizing runs off the design temperature, not the average day: -0.9°F here (record low -6°F), which works out to a seasonal COP of 2.68 for the cold-climate class of unit this climate calls for. Indianapolis 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 INDIANAPOLIS INTERNATIONAL AI, 8.1 miles from Indianapolis — the closest one on record.
Indianapolis's running-cost comparison, in dollars
Electricity use for heating alone comes out to about 4,049 kWh a year on the 2000-square-foot reference house; folding in cooling puts the electric bill near $875 a year. Indianapolis's gas rate of 11.49 per Mcf, applied to the 45 Mcf a year the furnace burns, puts its running cost near $795 a year, against 17.03¢ per kWh for electricity. Buy it outright, not incrementally, and payback stretches to beyond the 15-year equipment life; over 15 years the net position sits $4,703 behind.
Electric resistance heat in Indianapolis, compared
Gas isn't universal in Indianapolis — many houses run on electric heat already. Compared with baseboard or electric-furnace resistance heat, the numbers shift in the heat pump’s favor. About $1,255 a year comes back this way, enough that the 6.4-year payback clears the $8,000 premium comfortably within the equipment's life.
How Indianapolis compares nationally
Ranked against the other 3206 cities covered, Indianapolis comes in at 1344 for heating severity — 1 would be the coldest place in the dataset — and 16 by population, where 1 is largest. That's the middle third for winter severity among the cities covered here.
Next step for 891,484 people in Indianapolis
Indianapolis, Indiana is home to about 891,484 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 Indianapolis, 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 Indianapolis's figure comes from
The methodology guide walks through exactly how Indianapolis's 2.68 seasonal COP and the rest of this page's numbers get built. Indianapolis's -0.9°F design temperature falls on the cold side of the 25°F cutoff the cold-climate unit guide walks through.