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Ducted heat pumps for Norwell, MA homes on oil and propane

Ducted heat pumps for Norwell homes heated by oil and propane deliveries, with National Grid's Mass Save rebate and outdoor units placed for wooded lots.

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Cedar-shingled colonial on a wooded Norwell lot with a ducted heat pump outdoor unit on a raised stand beside the propane tank pad
ElectricNational Grid
RebatesMass Save
PermitsTown of Norwell building department
Energy codeStretch energy code since May 5, 2015

What a propane-to-heat-pump job in Norwell looks like

Outdoor unit on a stand set outside the drip line of the oaks, Church Hill area, Norwell
Outdoor unit on a stand set outside the drip line of the oaks
Enlarged return grille in the upstairs hall ceiling, Church Hill area, Norwell
Enlarged return grille in the upstairs hall ceiling

Off the delivery truck

A 1986 colonial in the Church Hill area heats with a 22-year-old propane furnace and cools with a 4-ton AC on the same ducts. Propane runs nothing else in the house, the tank is leased from the supplier, and the owners want the delivery account closed for good.

Measuring first

The load comes to 39,000 BTU an hour at the design temperature, so one 3.5-ton cold-climate unit carries the house on the ducts it already has. Static reads 0.71 inch, because the upstairs return is a 14-by-6 grille. Enlarging it to 20-by-14, reached through the attic, brings static to about 0.47 inch.

The work

Furnace, coil and condenser come out. The air handler with 8 kW of backup heat sits on the existing plenum, and a 45-amp circuit comes off the 200-amp panel. Mature oaks shade the side yard, so the outdoor unit goes on an 18-inch stand outside their drip line.

Closing the propane side

The 36-foot line set passes a nitrogen test, a vacuum below 500 microns and a charge by weight, and airflow is measured at each register. Then the supplier caps its line and reclaims the leased tank. The Mass Save whole-home rebate runs through National Grid.

Project facts
ServicePropane furnace to whole-home heat pump
WhereChurch Hill area, Norwell
House1986 two-story colonial, about 2,600 sq ft
Before22-year-old propane furnace and 4-ton AC
After3.5-ton cold-climate heat pump on existing ducts
Price$23,400 before rebates
Time on siteFour working days

What brings people to us in Norwell

A propane furnace and a leased tank

The heat pump takes over on the existing ducts, and the propane company reclaims its tank once the house no longer needs it.

An oil boiler in a big colonial

Two air handlers, attic and basement, bring ducted heat and cooling to a house built for radiators.

A house along the North River

Norwell is a coastal-zone town, so the flood zone is checked per address and the outdoor unit is raised where one applies.

In Norwell, the heat usually arrives by truck. Nearly half the town’s homes burn oil and another 7% burn propane, so for most owners a heat pump replaces a delivery schedule, not a gas bill.

Clement Boston Heat Pumps approaches heat pump installation in Norwell, MA with that in mind, and the savings case is among the strongest near Boston. Close to four in ten homes use gas; most of the rest pay delivered-fuel prices.

When the heat comes by truck

Oil and propane cost more per unit of heat than any other fuel in Massachusetts. A heat pump on National Grid’s winter rate lands well below both, and it cools the house in summer too.

What the switch saves

The saving depends on your house, your fuel price and how well it’s insulated. We put the running cost on your actual rates in the written estimate. Our heat pump vs oil guide shows how the comparison is built.

What Mass Save asks first

The whole-home rebate needs proof of weatherization, so an energy assessment and any air sealing or insulation it recommends come before or alongside the install. A tighter house also needs a smaller heat pump.

What it ends

No more delivery contracts, tank inspections, or a furnace that fails when a delivery is late. The tank comes out, or the propane company reclaims it.

Oil or propane: what each switch involves

Both switches qualify for Mass Save’s whole-home rebate through National Grid. The work differs mostly in what happens to the tank.

You heat with Share of Norwell homes What happens to the fuel side
Oil furnace about 47% (oil overall) We remove an accessible tank for $600 to $1,500
Oil boiler (included above) New ducts; tank removed the same way
Propane furnace about 7% The supplier reclaims its tank

See oil to heat pump conversion and oil tank removal. If propane also runs a range or water heater, the tank can stay for those.

Big houses, and how many systems they need

More than nine in ten Norwell homes are detached houses. Where a house is large or spread out, one heat pump on one duct system rarely serves every room evenly.

Splitting by floor or wing

A two-story colonial usually gets one system per floor: a basement air handler for the first, an attic air handler for the second. A house with a wing or a room over the garage may get a third, sized for that space alone. See whole-home heat pumps.

Boiler houses without ducts

Where an oil boiler feeds radiators, the attic and basement each take an air handler, and closets that stack between floors carry a trunk. Our boiler conversion page and attic air handler page explain the routing.

Older houses near Norwell Center

Fewer than one Norwell home in five predates 1940. In those, low attics and plaster walls limit routes, and a small-duct system that threads flexible tubes through walls and floors can avoid opening finished rooms. See heat pump ductwork.

The panel

Two or three systems plus backup heat can push an older service. We run a load calculation on the panel first. Our typical range for a 200-amp upgrade is $3,000 to $6,500; see panel upgrades.

Wooded lots and long winters

Norwell lots are often wooded, which shapes where the outdoor unit goes and what it has to handle in snow.

  • Clear of drip lines: ice falling from a roof edge can crush a fan guard.
  • On a stand: above drifting snow, so the coil can defrost and drain. See our placement guide.
  • Short line sets: the unit sits close to the air handler where the layout allows.
  • Sized for the cold: a room-by-room load calculation at your town’s design temperature, with equipment chosen by its output at 5°F.

Along the North River

Norwell is one of the state’s coastal-zone towns, with the tidal North River along its southern edge. Most houses sit well back from it, but some along the river roads are close enough for the air to carry salt.

Massachusetts has no siting rule for heat pumps in salt air, so near the river we keep the unit out of direct exposure and where rain can rinse it. Flood zones are checked per address, and equipment is raised where one applies.

Power outages on a wooded street

Like an oil or propane furnace, a heat pump needs electricity to run. On streets where trees take down lines, a backup generator is worth planning for.

A heat pump draws more than a furnace blower, so the generator has to be sized for the heat pump’s running load, with backup strips locked out while it runs. A variable-speed unit starts gently, which keeps that size down. Our power outage guide covers the options.

National Grid, Eversource Gas and Mass Save in Norwell

Norwell gets its electricity from National Grid and its gas from Eversource Gas. For oil and propane homes, National Grid is the Mass Save sponsor.

What The Norwell answer
Permits Town building department: electrical and sheet metal
Energy code Stretch code since May 5, 2015
Electric utility National Grid
Gas utility Eversource Gas
Rebate program Mass Save
Winter heat pump rate National Grid, distribution charge only

National Grid’s winter heat pump rate lowers the distribution charge on every household kilowatt-hour from November 1 to April 30. The rebate guide lists each condition.

From the estimate to the first cold night

The order matters on a delivered-fuel house: the heat pump carries the house before the oil or propane side is shut down, so you’re never without heat.

  1. First visit: load calculation, ducts or routes for new ones, panel, tank and outdoor spot.
  2. Written estimate: equipment with its capacity at 5°F, duct work, electrical, tank, permits, rebate path and price.
  3. Install: four to five working days on existing ducts; longer with new ducts or a second system.
  4. Final checks: nitrogen pressure holds, the vacuum reads under 500 microns, the charge is weighed in, airflow and static match the design, and the backup heat lockout is set and noted. Only then does the oil or propane side get shut down for good.

Hanover shares Norwell’s utilities; Hingham runs its own light plant and rebate.

Services in Norwell

How a job usually runs in Norwell

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

  • Norwell Center
  • Church Hill
  • Ridge Hill
  • Assinippi
  • Accord

Landmarks

  • North River
  • Jacobs Pond
  • Norris Reservation

Getting around

  • Route 123
  • Route 53
  • Route 3
  • Main Street
10 mi20 miBostonNorwell
Open Norwell, MA in Google Maps

Planning a heat pump in Norwell?

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

Norwell: questions

Does Mass Save pay to replace propane heat in Norwell?

Yes. Propane is one of the fuels Mass Save's whole-home rebate covers replacing, and National Grid is Norwell's electric sponsor. The rebate is $2,650 a ton up to $8,500 for installs through 2026, with cold-climate listed equipment, a network installer and proof of weatherization.

What does it cost to replace an oil or propane furnace with a heat pump in Norwell?

On ducts we can reuse, our typical range is $15,000 to $28,000 and up before rebates; a larger house needing two systems sits toward the top. An oil house on a boiler needing new ducts falls in our $20,000 to $40,000 and up range. The written estimate sets your price.

What happens to my propane tank after a Norwell heat pump install?

If the propane company owns the tank, it reclaims it once you close the account; we schedule that after the heat pump is carrying the house. If propane also runs a range or water heater, the tank can stay for those.

Will a heat pump keep my Norwell house warm in a power outage?

No more than an oil or propane furnace would, since both need electricity to run. A heat pump needs more power than a furnace blower, so a backup generator has to be sized for it. Our power outage guide covers the options.

Who issues heat pump permits in Norwell?

The Town of Norwell's building department. A ducted heat pump needs an electrical permit and a sheet metal permit for the ducts. The filing route, fees and any local noise rules are confirmed per address when we apply.

Nearby service areas

Guides for houses in Norwell

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