Should Brockton switch to a heat pump?
Brockton technically pencils out, but only past the point the equipment would need replacing anyway. $3,500 is what Brockton 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. Lower bills claw that back: about $134 saved annually, for a payback of roughly 26.2 years. That's a technicality, not a recommendation, for anyone actually living in Brockton.
Brockton's weather, in the numbers that matter
Brockton has a real but manageable winter — 4997 heating degree days a year against a 65°F base — and summers add a moderate cooling load, at 885 cooling degree days. 10.9°F is the figure equipment gets sized against here — the 99th-percentile cold snap, not an average day — with a record low of 5°F on file. Worked through the model, that's a seasonal COP of 2.96 on the cold-climate unit fit for this climate. Below the 25°F line where a standard machine starts leaning on resistance backup, Brockton sits firmly in cold-climate territory, so that's the class of unit priced here. Climate figures trace to the nearest NOAA station, NORWOOD MEMORIAL AIRPORT, 10.7 miles from Brockton.
What it actually costs to run, year to year
A 2000-square-foot house here would pull roughly 4,275 heating kilowatt-hours annually on top of cooling, totalling about $1,516 a year on electricity. The gas furnace it replaces burns roughly 52 Mcf a year at 25.06 per Mcf here, for a running cost near $1,650 a year (electricity here runs 30.15¢/kWh). Priced as a standalone purchase rather than against a like-for-like replacement, equipment payback runs about 101 years, for a 15-year net position $1,495 behind.
Electric resistance heat in Brockton, compared
Plenty of homes in Brockton heat with electricity alone, no gas line involved. Compared with baseboard or electric-furnace resistance heat, the numbers shift in the heat pump’s favor. The saving here runs about $2,644 a year, which recovers the extra $8,000 spent going electric in roughly 3 years.
Brockton against the rest of the country
Ranked against the other 3206 cities covered, Brockton comes in at 707 for heating severity — 1 would be the coldest place in the dataset — and 310 by population, where 1 is largest. That's the coldest third of the dataset, where climate does most of the work behind this figure.
Next step for 105,788 people in Brockton
Brockton, Massachusetts is home to about 105,788 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 Brockton, 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 Brockton's figure comes from
Nothing above is a black box: the methodology guide shows the full arithmetic behind Brockton's 2.96 seasonal COP and payback figure. Brockton's 10.9°F design temperature falls on the cold side of the 25°F cutoff the cold-climate unit guide walks through.