Gas furnace to heat pump
Most homes in the inner Boston suburbs heat with natural gas. A heat pump can replace it, and the rebate depends on who your gas utility is.
- Checked: November 3, 2026
The gas sponsor rule
Mass Save's heat pump rebates apply when a heat pump replaces oil, propane or electric resistance heat, or natural gas where a Mass Save gas sponsor serves you. Whole-home systems earn $2,650 per ton up to $8,500 in 2026. Everything else, from the Mass Save installer network to the panel, is the same as for oil. See the calculator.
Whole home or partial home
- Whole home. The heat pump is the sole heating and cooling source and the gas equipment is retired. Biggest rebate.
- Partial home. The heat pump takes most of the load and the gas furnace or boiler stays for the coldest days. A smaller rebate, with an integrated control required where gas stays in use.
If the furnace is working and you only want to add cooling, a partial project can be a way in. If it is failing, ask for a whole-home quote alongside the like-for-like replacement and compare. See replacing a boiler or furnace.
Where gas is the main fuel
| Town | Homes on gas | Share |
|---|---|---|
| Somerville | 24,824 | 70% |
| Belmont | 7,240 | 70% |
| Everett | 11,633 | 67% |
| Watertown | 10,984 | 67% |
| Cambridge | 31,452 | 64% |
| Melrose | 7,832 | 63% |
Common questions
Does Mass Save pay for a heat pump that replaces gas?
Mass Save lists rebates for natural gas replacement where a Mass Save gas sponsor serves you. Whether yours does depends on which utility sends your gas bill. Check before you plan around the rebate.
Will a heat pump lower my gas bill to zero?
Only in a whole-home project where the heat pump is the sole heat source and the gas heat is removed. In a partial-home project the gas system stays, and Mass Save requires an integrated control on zones where it stays in use. Gas still serves a stove, dryer or water heater unless those change too.
Do I need a new panel?
Sometimes. An electrician checks service size and panel space. Send a photo of the panel with the door open.
Heating with gas?
Send a photo of the furnace or boiler and one of your panel. We look at them and get back to you.
Send photos