Heat pumps in Maine.
Efficiency Maine pays up to $9,000 for income-qualified whole-home installs (three heat pumps, LIHEAP-eligible track). Moderate-income households reach $6,000. Maine has the highest oil-heat dependency in the country, this program is the path off oil.
Oil bills have climbed every year.
Maine heating oil climbed from $2.65/gal in 2010 to $4.10+/gal by 2025. CMP and Versant rate cases have pushed electric bills up 6–12% YoY since 2022. A heat pump locks you off oil entirely, while delivering 2.5× the heat per unit of input.
What a cold-climate heat pump install actually pays back.
A 3-ton ducted heat pump (R-32, cold-climate certified) replaces your existing heating with a single all-season electric system. The rebate stack below shows what Maine pays back on day one. The red line shows what staying on your current fuel costs you over 15 years.
See the pieces of the stackThe numbers that make a Maine heat pump pencil.
Four reasons your heat pump pays you back on day one.
Every rebate line, spelled out.
Current 2026 rebate amounts for Efficiency Maine Heat Pump Rebates. Locked in at the time of pre-approval.
- Any-income tier (per outdoor unit)$1,000/unit
- Any-income maximum (3 units)$3,000
- Moderate-income tier$2,000/unit
- Moderate-income maximum$6,000
- Low-income tier$3,000/unit
- Low-income maximum$9,000
- Whole-home bonus (through Dec 2026)+$500
- Ducted heat pump (full home)$3,000-9,000 lump sum
From first call to rebate payment.
A typical Maine heat pump install runs 6–9 weeks from Manual J load calculation to install commissioning.
The honest FAQ.
Actual questions that come up in the first installer conversation, answered for a typical Maine homeowner in 2026.
What's the $500 whole-home bonus?
An additional $500 for whole-home heat pump upgrades completed between March 1 and December 31, 2026. Single-wide mobile homes excluded. No announcement on renewal beyond 2026.
Can I combine heat pump and insulation rebates?
Yes. Heat pump rebates (up to $9,000) and weatherization rebates (up to $8,000) are separate and stack on the same project, up to $17,000 combined for low-income households.
What about multi-zone systems?
Single-zone outdoor units qualify fully for per-unit rebates. Multi-zone systems are NOT eligible for the per-unit rebate but their capacity can count toward total heating. Three single-zone units often beats one multi-zone system from a rebate perspective, same rooms served, meaningfully more rebate.
Other states and programs.
Looking for the same kind of program in another state, or a different program in yours? Tap any pill to jump.
Ready to see how Efficiency Maine Heat Pump Rebates applies to your home?
Your Home Efficiency Score shows your exact rebate stack, across this program and every other one you qualify for in 2026.
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