Will a heat pump pay off in Boston, MA?
The payback math works in Boston on paper, past the equipment's own working life. 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). Boston's residents would see roughly $157 a year back in running costs, putting the payback around 22.2 years. Boston's own numbers say this pencils out only in theory, not in practice.
Why Boston's climate drives this number
5029 heating degree days pile up here every year, so Boston has a cold winter that leans hard on heating equipment; the cooling side runs to 807 cooling degree days, where summers add a moderate cooling load. The 99% winter design temperature here — the cold snap equipment must be sized for, not the seasonal average — is 14°F, against a record low of 10°F. That puts the seasonal coefficient of performance at 3.04 for the recommended cold-climate unit. Below the 25°F line where a standard machine starts leaning on resistance backup, Boston sits firmly in cold-climate territory, so that's the class of unit priced here. Source: NOAA station GEN E L LOGAN INTERNATIONAL A, 1.6 miles from Boston — the closest one on record.
What it actually costs to run, year to year
Electricity use for heating alone comes out to about 4,189 kWh a year on the 2000-square-foot reference house; folding in cooling puts the electric bill near $1,470 a year. That compares with roughly 52 Mcf a year of gas at Boston's 25.06 per-Mcf rate — about $1,628 a year — against a local electricity rate of 30.15¢/kWh. Priced as a standalone purchase rather than against a like-for-like replacement, equipment payback runs about 85.7 years, for a 15-year net position $1,138 behind.
If your home heats with electric baseboard instead of gas
Not every home in Boston has gas service. Compared with baseboard or electric-furnace resistance heat, the numbers shift in the heat pump’s favor. Switching saves about $2,684 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 3 years.
How Boston compares nationally
Boston lands at position 659 out of 3206 cities on heating severity (coldest is 1), and 25 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.
What to do with this number in Boston
About 673,458 people live in Boston, Massachusetts, 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.
Ask a local HVAC contractor for a quote before committing either way.
More on how this number was built
Every constant behind this page — the 3.04 seasonal COP, the degree-day corrections, the equipment costs — is documented in the methodology guide. At a 14°F design temperature, Boston sits in cold-climate territory; the guide to that class of unit explains why.