Cheapest heat pumps to run in Maine
Ranked by estimated yearly cost if each model served the same 36,000 BTU/h (3-ton) load in Maine, so size doesn't distort the comparison. Because Maine's climate weights heating more heavily, HSPF2 (heating efficiency) matters most here. Choosing the most efficient model over the least efficient one in our database saves about $1,873 a year for the same load.
| # | Model | Type | Size | HSPF2 | SEER2 | 5°F kept | 3-ton cost/yr |
|---|---|---|---|---|---|---|---|
| 1 | Fujitsu AOUH09KTAP1 | Mini-split | 1 ton | 14 | 33.5 | 142% | $2,285 |
| 2 | Fujitsu AOUH12KTAP1 | Mini-split | 1 ton | 13.7 | 31.5 | 106% | $2,341 |
| 3 | Bryant 37MARAQ09AA3 | Mini-split | 1 ton | 13.9 | 19.6 | 78% | $2,398 |
| 4 | Bryant 37MAHAQ09AA3 | Mini-split | 1 ton | 13.8 | 20.6 | 99% | $2,402 |
| 5 | Bryant 37MARAQ18AA3 | Mini-split | 1.5 tons | 13.5 | 20 | 71% | $2,457 |
| 6 | Senville SENA-24HF-OG | Mini-split | 2 tons | 13.5 | 19 | 83% | $2,470 |
| 7 | Fujitsu AOUH15KTAP1 | Mini-split | 1 ton | 13 | 28.7 | 106% | $2,473 |
| 8 | Mitsubishi Electric SUZ-AA09NL*** | Mini-split | 1 ton | 12.9 | 17.6 | 53% | $2,593 |
| 9 | Senville SENA-09HF-OG | Mini-split | 1 ton | 12.5 | 21.4 | 96% | $2,620 |
| 10 | Bryant 37MAHAQ18AA3 | Mini-split | 1.5 tons | 12.4 | 18 | 90% | $2,681 |
| 11 | Senville SENA-18HF-OG | Mini-split | 1.5 tons | 12.3 | 18 | 90% | $2,700 |
| 12 | Senville SENA/09HF/OQ | Mini-split | 1 ton | 12 | 20.2 | 90% | $2,733 |
Best cold-weather performers for Maine
Maine is a very cold state, so heating dominates the bill and backup resistance heat is the biggest risk to running costs. These cold-climate certified models keep the most of their heating capacity at 5°F.
- Size
- 1 ton
- HSPF2
- 14
- SEER2
- 33.5
- Heat at 5°F
- 142%
- Size
- 1 ton
- HSPF2
- 10.5
- SEER2
- 22
- Heat at 5°F
- 133%
- Size
- 1.5 tons
- HSPF2
- 10
- SEER2
- 20.5
- Heat at 5°F
- 120%
- Size
- 2.5 tons
- HSPF2
- 9
- SEER2
- 21
- Heat at 5°F
- 112%
- Size
- 1.5 tons
- HSPF2
- 11.4
- SEER2
- 24.5
- Heat at 5°F
- 112%
- Size
- 1.5 tons
- HSPF2
- 10
- SEER2
- 17.5
- Heat at 5°F
- 110%
- Size
- 1 ton
- HSPF2
- 11.2
- SEER2
- 30
- Heat at 5°F
- 108%
- Size
- 3 tons
- HSPF2
- 8.5
- SEER2
- 17.5
- Heat at 5°F
- 108%
Heat pump vs. gas furnace in Maine
To heat the same home (2,600 full-load heating hours at 36,000 BTU/h) in Maine, a typical heat pump (HSPF2 9.5) would cost about $3,164 a year, an efficient one (HSPF2 10) about $3,005, versus $1,800 for a 95% gas furnace and $2,138 for an older 80% furnace, at Maine's average residential gas price of $18.95 per thousand cubic feet (2024). With cheap gas and comparatively expensive electricity, gas heating is cheaper to run in Maine. A dual-fuel system (heat pump plus gas backup) is often the lowest-cost setup here.
Heating only; a heat pump also provides cooling, while a furnace needs a separate air conditioner. Gas prices: EIA, residential, annual average. Compare all states.
Assumptions for Maine
| Residential electricity price | 32.11¢/kWh (EIA Electric Power Monthly, Aug 2026, preliminary) |
| Climate group | Very cold |
| Equivalent full-load heating hours | 2,600 per year |
| Equivalent full-load cooling hours | 400 per year |
Use the calculator on any model page to replace these with your own electricity rate and usage.
Frequently asked questions
How much does it cost to run a heat pump in Maine?
Using Maine's average residential electricity price of 32.11¢/kWh, a typical 3-ton, median-efficiency heat pump costs about $3,468 a year to run. The most efficient model in our database would cost about $2,285 for the same load.
Is electricity expensive in Maine?
Maine's residential rate of 32.11¢/kWh is 77% above the U.S. average of 18.16¢ and ranks #2 most expensive of 51 (EIA, August 2026).
Is heating or cooling the bigger cost in Maine?
With our climate assumptions for Maine (2,600 heating and 400 cooling hours), heating accounts for about 91% of a typical heat pump's yearly energy use.
Is a heat pump cheaper than gas heat in Maine?
For a typical home, heating with an efficient heat pump costs about $3,005 a year versus $1,800 with a 95% gas furnace at Maine's average prices. With cheap gas and comparatively expensive electricity, gas heating is cheaper to run in Maine. A dual-fuel system (heat pump plus gas backup) is often the lowest-cost setup here.