New Hampshire heat pump library
Research the program rules, winter tradeoffs, and design questions that belong ahead of a sales conversation.
Educational library
Each guide carries a visible date and answers a question a homeowner actually asks, rather than restating what a heat pump is.
Planning
Code is the minimum an inspector accepts. The ACCA quality installation standard asks for proof: load calculated, capacity matched, airflow and charge measured.
August 13, 20264 min read
Incentives
New Hampshire still pays through NHSaves and the New England Heat Pump Accelerator. The federal 25C credit ended December 31, 2025, with no grandfather.
August 1, 20262 min read
Planning
Heat loss, zone count, distribution, electrical work and access move the price far more than floor area does. Two same-sized homes need different systems.
August 1, 20262 min read
Cold climate
Yes, when the model's published low-temperature capacity is matched to the building's measured heat loss. An operating limit alone is not a heating promise.
August 1, 20262 min read
Planning
Often yes, and that is a reliability decision rather than a failure to electrify. Boiler condition, chimney, fuel storage and the control sequence decide it.
August 1, 20262 min read
Hydronics
An air-to-water heat pump can drive radiant loops and domestic hot water in place of a boiler. The deciding factor is the water temperature the emitters need.
August 1, 20262 min read
Incentives
Rebate tonnage follows the nominal capacity of the installed qualifying equipment, not floor area. Indoor heads and outdoor units are counted separately.
August 1, 20262 min read
Planning
Enough total capacity does not guarantee distribution. Room layout, indoor-unit placement, airflow and the room's own heat loss usually explain the cold room.
August 1, 20262 min read
Cold climate
Cold-climate models are tested for low-temperature heating, but capacity varies by model. Compare delivered capacity at real temperatures, not the label.
August 1, 20262 min read
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A conversation with the person who will do the work, not a salesperson working from a script.
