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Ducted heat pumps for Braintree homes on BELD power

Ducted heat pumps for Braintree homes on BELD power, planned around BELD's gas and non-gas rebate tiers, its 12-inch stand rule and Mass Save for gas homes.

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Braintree Highlands colonial with a ducted heat pump outdoor unit on a stand a foot above the ground at the side of the house
ElectricBraintree Electric Light Department (BELD)
RebatesBELD heat pump rebate (gas-heated homes may add Mass Save)
PermitsTown of Braintree Building Division (PermitEyes online permitting)
Energy codeStretch energy code since January 1, 2021

What a furnace-to-heat-pump job in Braintree Highlands looks like

Gas furnace and AC coil before removal, Braintree Highlands
Gas furnace and AC coil before removal
Outdoor unit on a 14-inch stand beside the driveway, Braintree Highlands
Outdoor unit on a 14-inch stand beside the driveway

A furnace that has to go

A 1964 colonial in Braintree Highlands has a 23-year-old gas furnace with a cracked heat exchanger and an 18-year-old air conditioner on the same ducts. Both need replacing. Because the house heats with gas, it falls in BELD's gas-home tier, which also lets the owners add Mass Save.

Seal first, then size

The first load calculation says 3.5 tons. Air sealing the attic floor, half paid by BELD's weatherization rebate, brings the final room-by-room Manual J down to 3 tons. Two leaking panned joist returns are sealed, and static pressure reads 0.48 inches on the reused ducts.

Meeting BELD's conditions

The heat pump is a NEEP-listed cold-climate unit using R-454B, since R-410A systems installed after 2025 don't qualify. The outdoor unit sits on a 14-inch stand beside the driveway, above BELD's 12-inch minimum and clear of drifting snow, with the line set run along the foundation to the basement air handler.

Furnace out, paperwork in

For the whole-home path, the furnace is removed and a licensed gas fitter caps the line. Permits go through the Building Division on PermitEyes. The Manual J report goes with the BELD application, and the Mass Save gas-side paperwork goes through National Grid, so the owners collect both rebates on one system.

Project facts
ServiceFurnace to heat pump conversion on existing ducts
WhereBraintree Highlands
House1964 colonial, about 1,900 sq ft
BeforeGas furnace with a cracked heat exchanger, R-22 AC
After3-ton cold-climate heat pump on the existing ducts
Price$19,800 before rebates
Time on siteFour working days, after a day of air sealing

What brings people to us in Braintree

A gas furnace and central air

Gas-heated homes get BELD's $750-a-ton rebate and can add Mass Save's gas-side rebate on top.

An oil boiler or electric baseboard

Non-gas homes get BELD's larger rebate, $1,250 a ton up to $7,500, but no Mass Save electric-side rebate.

A low lot near the Monatiquot or the Fore River

BELD wants the outdoor unit at least 12 inches off the ground unless it's shielded, which also keeps it above snow and standing water.

Braintree Electric Light Department pays two different heat pump rebates, and the one you get depends on what heats your house today. Clement Boston Heat Pumps plans heat pump installation in Braintree, MA around that split, because it changes both the rebate and whether Mass Save joins in.

Gas homes get the smaller BELD rebate plus Mass Save. Oil, propane and baseboard homes get the larger BELD rebate and no Mass Save on the electric side.

Which BELD rebate fits your house

BELD runs its own heat pump program, administered by Abode. The tier is set by your current heating fuel, and both tiers ask for the same equipment and installation standards.

Homes that heat with gas

BELD pays $750 per ton up to $4,500. Because National Grid supplies Braintree’s gas and sponsors Mass Save, a gas home can add Mass Save’s gas-side heat pump rebate on top. BELD’s own program page says so plainly. Our rebate guide lists Mass Save’s conditions.

Homes that heat with oil, propane or electricity

BELD pays $1,250 per ton up to $7,500. Mass Save’s electric-side rebates need a Mass Save electric sponsor, and BELD isn’t one, so this BELD rebate is the main incentive. About 31% of Braintree homes burn oil and 13% use electric heat, so this tier covers a large share of town.

Conditions on both tiers

  • Equipment: ducted or ductless heat pumps on the NEEP cold-climate list.
  • Placement: the outdoor unit on a stand with at least 12 inches of ground clearance, unless it’s shielded.
  • Whole-home: a room-by-room Manual J and the existing system disconnected.
  • Refrigerant: R-410A systems installed after December 31, 2025 don’t qualify; see our refrigerant guide.

Whole-home on BELD: what it asks of the house

BELD’s whole-home path asks for two things beyond the equipment: a room-by-room Manual J and the old heating system disconnected. Both decide how the heat pump is sized and what happens on the coldest night.

A load calculation room by room

A whole-house rule of thumb by square footage oversizes some rooms and starves others. The Manual J we run on the first visit works out each room’s heat loss at the design temperature, so every register gets the airflow it needs. We keep the report with the BELD paperwork.

No furnace to fall back on

With the old system disconnected, the heat pump and its backup strips carry the house alone. We choose equipment that holds its output at 5°F and set the strips to come on only when the heat pump can’t keep up.

Where an owner wants a gas furnace kept, that is a partial setup, and we price both options side by side.

Weatherization, the other BELD rebate

BELD also pays half the cost of weatherization, up to $3,500. Sealing and insulating before the heat pump goes in shrinks the system you need.

Why it changes the quote

A colonial with a leaky attic floor and an uninsulated rim joist may need a ton more capacity than the same house sealed. The load calculation shows where the heat goes; our sizing guide explains how we read it.

Order of work

Air sealing and insulation go first, then the final load calculation, then the equipment order. That way the rebate covers the right size.

The houses: capes, colonials and the Highlands

About 65% of Braintree homes are detached houses, and a little over a quarter were built before 1940. Most were built with a furnace or a boiler, some with central air added later.

Furnace houses

Post-war capes, ranches and colonials with warm-air gas or oil furnaces have ducts already. We measure static pressure and check the returns, then reuse what works; see furnace to heat pump conversion.

Boiler houses

Older houses in East Braintree and around Braintree Center often heat with hot-water baseboard or radiators. They need new ducts: a basement air handler for the first floor and an attic unit upstairs. See heat pump ductwork.

Condos

About a fifth of homes are in buildings of five or more units. The association decides where outdoor units go, and BELD’s 12-inch stand rule applies to those spots too.

Oil, gas and running cost on BELD power

Running cost on BELD power follows BELD’s own tariff, not the state seasonal heat pump rates, which only Eversource, National Grid and Unitil offer.

  • Oil: the costliest common fuel per delivered BTU, so oil homes see the largest change. We remove the basement tank with the conversion; see oil to heat pump conversion and oil tank removal.
  • Gas: cheaper per BTU, so the case is closer. Gas owners usually switch for central cooling or at the end of the furnace’s life; see heat pump vs gas furnace.
  • Electric baseboard: two to three units of heat per kilowatt-hour from a heat pump, against one.

Who pays what in Braintree: BELD heat pump rebate and permits

Braintree’s Building Division takes permit applications online through PermitEyes. A heat pump job needs an electrical permit and the town’s mechanical permits, confirmed per address.

What The Braintree figure
Electric utility Braintree Electric Light Department
Gas utility National Grid (Boston Gas)
BELD rebate, gas-heated homes $750 per ton up to $4,500, plus Mass Save
BELD rebate, other homes $1,250 per ton up to $7,500
Energy code Stretch code since January 1, 2021
Heating fuel Gas 51.2%, oil 31.4%, electricity 13.1%

Braintree is also on the state’s coastal list, with shoreline on the Fore River and Town River. Units near tidal water go out of direct spray, and BELD’s stand rule keeps them clear of snow; see our placement guide.

Steps on a Braintree install

The first visit settles the rebate tier along with the load: what heats the house, the ducts, the panel and an outdoor spot with room for a 12-inch stand.

  1. Written estimate: equipment on the NEEP list with its capacity at 5°F, ducts, electrical, permits and the BELD tier.
  2. Weatherization first, where it lowers the size.
  3. Install: three to nine working days, depending on ducts; the old system is disconnected for the whole-home path.
  4. Commissioning: pressure test, vacuum below 500 microns, weighed charge, airflow and the backup lockout recorded.

Weymouth next door is on National Grid and Mass Save, and Randolph to the south shares that setup.

Services in Braintree

How a job usually runs in Braintree

First call

You tell us what heats and cools the house now, which rooms aren't working, and roughly where the house is.

Home visit

We measure the house for a load calculation, test the ducts, check the panel and look for an outdoor spot.

Written estimate

Equipment, duct changes, electrical, permits and the rebate path, line by line, with our price.

Install

Permits first, then the work: usually two to five working days on site.

Commissioning

Pressure test, vacuum, charge by weight, airflow and controls set before we call it done.

Neighborhoods, landmarks and routes

  • East Braintree
  • South Braintree
  • Braintree Highlands
  • Braintree Center
  • Five Corners
  • French's Common
  • Liberty Plain

Landmarks

  • South Shore Plaza
  • Sunset Lake
  • Great Pond
  • Pond Meadow Park
  • Thayer Academy
  • Thayer Public Library

Getting around

  • Interstate 93
  • Route 3
  • Route 37
  • Route 53
10 mi20 miBostonBraintree
Open Braintree, MA in Google Maps

Planning a heat pump in Braintree?

We start with what heats the house now, the ducts you have or could have, and where the outdoor unit can go.

Braintree: questions

How much is BELD's heat pump rebate in Braintree?

BELD pays $1,250 per ton up to $7,500 if you heat with something other than gas, and $750 per ton up to $4,500 if you heat with gas. Equipment has to be on the NEEP cold-climate list, and the outdoor unit needs at least 12 inches of ground clearance unless shielded.

Can a Braintree gas customer get both BELD and Mass Save rebates?

Yes. BELD's program says customers who heat with gas now qualify for Mass Save heat pump rebates in addition to the BELD rebate, because National Grid, Braintree's gas company, sponsors Mass Save.

What does a whole-home heat pump cost in a Braintree colonial?

Where the existing ducts can be reused, our typical range is $15,000 to $28,000 and up before rebates. Houses heated by a boiler need new ducts, where our typical range is $20,000 to $40,000 and up. The written estimate after the visit sets your price.

Does BELD's whole-home rebate need a Manual J load calculation?

Yes. BELD's whole-home path requires a room-by-room Manual J and disconnecting the existing heating system. We do that calculation on the first visit, at the design temperature for your address, and include it with the paperwork.

Will an R-410A heat pump qualify for a BELD rebate?

No. BELD's program excludes R-410A systems installed after December 31, 2025. We quote equipment using current refrigerants such as R-454B so the system qualifies.

Nearby service areas

Guides for houses in Braintree

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Tell us what heats the house now and which rooms aren't working in Braintree.

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