Heat Pump Cost in New Hampshire (2026)

It comes down to the electricity rate. At $0.27/kWh in New Hampshire versus $0.28/kWh in Maine, the rates are similar — but Maine's higher share of oil-heated homes (57% vs. 42%) and slightly colder design temperatures make the savings-per-home larger. A NH home burning 600-800 gallons of oil saves roughly $1,200-$1,800 per year with a heat pump. For the 20% on natural gas ($2.13/therm), a heat pump typically costs more to operate than a high-efficiency gas furnace — the comparison flips negative at current rates. This mixed picture means a heat pump makes the most sense for oil-heated homes in NH, not gas homes.

Eversource dominates New Hampshire — serving roughly 70% of the state's electric customers — and is actively piloting time-of-use (TOU) rates. Under a TOU structure, off-peak electricity (typically overnight and midday) costs significantly less than the standard $0.27/kWh rate. A heat pump paired with a programmable thermostat that shifts heating to off-peak hours could reduce the effective electric rate to $0.18-$0.22/kWh — dramatically improving the comparison against oil. This is still in pilot phase, and enrollment is limited, but it represents the most important near-term shift in NH heat pump economics. Check Eversource's current TOU pilot status before modeling your numbers.

A cold-climate air-source heat pump with existing ductwork runs $8,000-$16,000 in New Hampshire. Ductless multi-zone mini-splits — common in older New England homes without central ducts — run $7,000-$15,000 for a whole-home system. The NHSaves state rebate adds $0.20/W up to $1,000 (verify current terms at dsireusa.org). At $1,200-$1,800 in annual oil savings, simple payback runs 5-8 years without the rebate, 4-7 years with it — longer than Maine's 3-5 year payback but still within a reasonable window if your oil boiler is aging.

At $2.13/therm and $0.27/kWh, a 90% AFUE gas furnace typically costs less to operate than a cold-climate heat pump in NH. The operating cost difference is roughly $200-$400 per year in the gas furnace's favor. For gas-heated homes in NH, a heat pump doesn't pay back on operating savings alone. It only makes sense if: (1) your gas furnace AND central AC are both due for replacement, letting a single heat pump avoid the dual-system cost; or (2) you value electrification for emissions or indoor air quality reasons. NH's gas prices are set by the regional market and don't benefit from the cheap gas infrastructure of the Midwest.

New Hampshire's 'Live Free or Die' ethos translates to a lighter regulatory touch than Vermont or Massachusetts. There is no state-level heat pump mandate or building electrification requirement. The NHSaves rebate program is smaller than Efficiency Maine or Vermont's offerings. On the flip side, installation permitting and utility interconnection tend to be faster and less bureaucratic. For homeowners, this means: the financial case needs to stand on its own — the state won't subsidize it heavily — but the installation process is relatively straightforward. Get multiple quotes; the absence of a strong state program means installer pricing varies widely.