A whole-home heat pump in Manchester can pull five figures in rebate money this year. That sentence would have been fantasy two years ago. For installs completed between March 23 and December 31, 2026, the NHSaves enhanced tier pays $2,000 per ton of heating capacity through Eversource, Liberty, and Unitil, and the New England Heat Pump Accelerator stacks another $650 on top for every outdoor unit you install. A $750 rebate for heat pump water heaters rides alongside.
The catch is that the money follows rules. Miss the equipment list, botch the sizing, or hire the wrong installer, and the check never comes. Here is how the whole stack works for a Manchester address, with the math done for real houses in real neighborhoods.
Where the money comes from now
The federal 25C and 25D tax credits expired on December 31, 2025, and the DOE HEAR program is gone with them. Everything you can claim in 2026 flows through New Hampshire's ratepayer-funded NHSaves program and the regional accelerator. That shift matters for one practical reason beyond the dollars: any contractor whose quote still leans on a federal credit is working from a playbook that expired with the credit, and you should read the rest of their proposal with that in mind.
NHSaves is sponsored by the state's electric utilities. In and around Manchester that means Eversource for most addresses, with Liberty and Unitil serving their own territories and the NH Electric Co-op covering members on its own schedule. The program is statewide, so a homeowner in Hooksett follows the same rulebook as one in Downtown Manchester.
The enhanced tier: $2,000 per ton
The core payout is simple multiplication. Qualifying cold-climate heat pumps installed in the enhanced-tier window earn $2,000 for every ton of heating capacity. Before March 23, 2026, the rate was $1,250 per ton, so timing alone moved thousands of dollars.
Capacity is not a number you pick. A contractor runs a load calculation against the coldest weather Manchester actually sees, a design day sitting near 1F, and the house tells you what it needs. A tight ranch in Wellington might land at 2.5 tons. A rambling colonial in the North End with original windows can push past 4. Whatever the math says, multiply by $2,000.
The accelerator: $650 per outdoor unit
The New England Heat Pump Accelerator adds a flat $650 for each qualifying outdoor unit. Single compressor, one $650. A two-compressor layout serving opposite ends of a large Bedford NH contemporary earns $1,300. The adder stacks on top of the per-ton money rather than replacing it.
The water heater bonus: $750
Swap a conventional water heater for a qualifying heat pump water heater during the same project and NHSaves adds $750. Crews are already opening walls and running condensate lines, so bundling the water heater is usually the cheapest moment you will ever have to do it.
Three Manchester scenarios, fully priced
Numbers land better on actual houses.
| Scenario | Size | Utility | Per-ton rebate | Accelerator | Water heater | Total |
|---|---|---|---|---|---|---|
| Rimmon Heights duplex, oil boiler out | 3 tons | Eversource | $6,000 | $650 | none | $6,650 |
| Bedford NH contemporary, two compressors | 5 tons | Liberty | $10,000 | $1,300 | none | $11,300 |
| Goffes Falls full electrification | 3.5 tons | Unitil | $7,000 | $650 | $750 | $8,400 |
The Bedford scenario deserves a second look. Eleven thousand three hundred dollars against a large multi-zone project changes the conversation from someday to this fall. The per-ton structure rewards houses with honest, documented heat loss, and larger homes carry larger loads.
NH Electric Co-op runs its own schedule
Co-op members outside the three big utilities work from a different sheet. The standard co-op incentive pays $250 per ton up to $1,250 when the heat pump displaces fossil heat. Members replacing electric resistance heat as their primary source can qualify for a higher enhanced amount, and the co-op wants that verified before installation, so call them before you sign anything. If your meter says NH Electric Co-op, budget around the $1,250 figure and treat anything above it as money you confirmed in advance.
What disqualifies an application
The rejection reasons repeat across the state. Every one of them is avoidable.
The equipment has to be a qualifying cold-climate model. These machines hold their heating output deep into negative temperatures, and the program list exists because ordinary heat pumps cannot. Ask for the specific model's listing, in writing.
The sizing has to be defensible. Manchester's design day sits near 1F, and the load calculation should say so on paper. Oversizing to inflate the per-ton payout gets flagged, and an oversized machine short-cycles for its whole service life even if the rebate sneaks through.
The refrigerant will be R-454B on current equipment. That is the standard your installer should name without prompting.
The installer has to be a licensed professional, and several utilities want their network contractors on the job. A handyman install can void the entire claim.
Contractors who lean on federal credits that expired at the end of 2025 belong on your reject pile, since a proposal built on dead programs tells you how current the rest of their knowledge is. Our guide on how to choose an HVAC contractor in Manchester goes deeper on the vetting questions.
How the money actually moves
NHSaves pays downstream, meaning after installation. In the plain version, you pay the contractor, submit the paperwork with the invoice and equipment documentation, and the rebate arrives as a check. Plenty of established shops offer the friendlier version: they discount the invoice by the rebate amount up front and collect the reimbursement themselves. Ask which model a contractor uses before you sign, because it decides whether you float several thousand dollars for a few weeks.
Keep copies of everything. The invoice showing model numbers, the load calculation, the commissioning report. Applications stall on missing documents far more often than on ineligible equipment.
Timing the window
The enhanced tier has a hard edge: December 31, 2026. Installation crews across Southern New Hampshire book out weeks ahead once the first cold snap hits, and a project that slips past the deadline drops back to whatever the program offers next, which nobody can promise will match $2,000 per ton. If the math above works for your house, the expensive mistake is waiting for January to think about it.
For the full picture of what these rebates offset, our Manchester heat pump installation cost 2026 guide walks through gross pricing by system type, and Eversource customers can go deeper in our Eversource heat pump incentives breakdown.
Ready for a real number instead of a range? Get a free quote in about two minutes, no obligation, sized to your actual house and priced with every NHSaves dollar your address qualifies for.