Bangor, ME: the heat pump payback math
In Bangor, a heat pump would cost more to run each year than what you have now. $3,500 is what Bangor 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. Running costs here land $553 a year HIGHER than the furnace it replaces, so that premium is never recovered. There's no spin on that: Bangor's numbers say wait.
The climate behind Bangor's payback figure
Bangor has a cold winter that leans hard on heating equipment — 6653 heating degree days a year against a 65°F base — and summers add a moderate cooling load, at 432 cooling degree days. -4°F is the figure equipment gets sized against here — the 99th-percentile cold snap, not an average day — with a record low of -5.1°F on file. Worked through the model, that's a seasonal COP of 2.6 on the cold-climate unit fit for this climate. A cold-climate unit is the right call in Bangor — below 25°F design temperature, a standard heat pump leans hard on electric-resistance backup, which erases most of the savings. Source: NOAA station BANGOR INTERNATIONAL ARPT, 2.6 miles from Bangor — the closest one on record.
The month-to-month numbers for Bangor
A 2000-square-foot house here would pull roughly 6,479 heating kilowatt-hours annually on top of cooling, totalling about $2,032 a year on electricity. The gas furnace it replaces burns roughly 69 Mcf a year at 18.95 per Mcf here, for a running cost near $1,479 a year (electricity here runs 29.68¢/kWh). Priced as a standalone purchase rather than against a like-for-like replacement, equipment payback runs past the 15-year equipment life, for a 15-year net position $11,798 behind.
Electric resistance heat in Bangor, compared
Plenty of homes in Bangor 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. Switching saves about $3,134 a year here — a heat pump moving heat rather than generating it needs far less electricity than resistance coils — so the extra $8,000 spent up front comes back in about 2.6 years.
Bangor against the rest of the country
Bangor lands at position 74 out of 3206 cities on heating severity (coldest is 1), and 1262 out of 3206 by population size (biggest is 1). That's the coldest third of the dataset, where climate does most of the work behind this figure.
Deciding what's next in Bangor, ME
About 32,446 people live in Bangor, Maine, and every number on this page is what a contractor would actually work from when quoting a system here — the point isn't to replace that quote, it's to tell you whether to bother asking for one. Here, there's no cost penalty to waiting until your current furnace or AC actually needs replacing.
Line up a few local HVAC quotes before you decide.
More on how this number was built
Every constant behind this page — the 2.6 seasonal COP, the degree-day corrections, the equipment costs — is documented in the methodology guide. Bangor's -4°F design temperature falls on the cold side of the 25°F cutoff the cold-climate unit guide walks through.