Will a heat pump pay off in Manchester, NH?

Manchester is a place where a heat pump genuinely costs more to operate than the alternative. $3,500 is what Manchester 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 $91 a year here, so the extra spend stays unrecovered. That's Manchester's own climate and rates talking, not a hedge or a caveat.

How cold Manchester actually gets

5422 heating degree days pile up here every year, so Manchester has a cold winter that leans hard on heating equipment; the cooling side runs to 926 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 10°F, against a record low of 3.9°F. That puts the seasonal coefficient of performance at 2.94 for the recommended cold-climate unit. Below the 25°F line where a standard machine starts leaning on resistance backup, Manchester sits firmly in cold-climate territory, so that's the class of unit priced here. Climate figures trace to the nearest NOAA station, MANCHESTER AIRPORT, 3.8 miles from Manchester.

What it actually costs to run, year to year

Electricity use for heating alone comes out to about 4,670 kWh a year on the 2000-square-foot reference house; folding in cooling puts the electric bill near $1,463 a year. That compares with roughly 56 Mcf a year of gas at Manchester's 18.61 per-Mcf rate — about $1,373 a year — against a local electricity rate of 26.80¢/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 $4,859 behind.

If your home heats with electric baseboard instead of gas

Plenty of homes in Manchester 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. Switching saves about $2,538 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 3.2 years.

How Manchester compares nationally

Ranked against the other 3206 cities covered, Manchester comes in at 421 for heating severity — 1 would be the coldest place in the dataset — and 263 by population, where 1 is largest. That's the coldest third of the dataset, where climate does most of the work behind this figure.

Deciding what's next in Manchester, NH

Manchester, New Hampshire is home to about 116,386 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 Manchester, nothing is lost by holding off until the current equipment genuinely fails.

Get quotes from local HVAC contractors before deciding.

Where Manchester's figure comes from

Nothing above is a black box: the methodology guide shows the full arithmetic behind Manchester's 2.94 seasonal COP and payback figure. Manchester's 10°F design temperature falls on the cold side of the 25°F cutoff the cold-climate unit guide walks through.