Boston / Yarmouth

Heat pump installation in Yarmouth, MA - up to $8,500 Mass Save rebate

Yarmouth in Barnstable County

Yarmouth has 25,224 residents (give or take 30) (ACS 2020-2024 5-year, table B01003, https://data.census.gov/table/ACSDT5Y2024.B01003?g=060XX00US2500182525, checked 2026-10-19), about 1,044 people per square mile.

Yarmouth is about 61 miles from the Census center point for Boston in a straight line and covers 24.156 square miles of land (Census 2024 Gazetteer internal points and land area, https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2024_Gazetteer/, checked 2026-10-19).

The quote form takes a ZIP code; for Yarmouth that is 02664, 02673, 02675 (Census 2020 ZCTA to county subdivision relationship file, ZIP areas at least 20% inside the town, https://www2.census.gov/geo/docs/maps-data/data/rel2020/zcta520/tab20_zcta520_cousub20_natl.txt, checked 2026-10-19).

Fuel mix

Of the 11,946 occupied homes in Yarmouth, 78% heat with natural gas, 10% with heating oil, 8% with electricity and 1% with propane (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=060XX00US2500182525, checked 2026-10-19).

Gas heats 78% of Yarmouth against oil at 10%, so most quotes here are a partial-home system that carries the shoulder seasons and the summer while the gas furnace handles the coldest nights, or a whole-home system when the house is ready for it.

Yarmouth has 9 points less oil heat than Barnstable County as a whole, where 19% of homes burn oil, and 5 points less electric heat than the county's 13% (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=050XX00US25001, checked 2026-10-19).

Housing stock

Yarmouth has 17,542 housing units, 7% built before 1940 and 68% before 1980, with 7% built in 2000 or later (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=060XX00US2500182525, checked 2026-10-19).

Yarmouth has 4 points fewer pre-1940 homes than Barnstable County as a whole (11%) and 6 points fewer homes built after 2000 than the county's 13% (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=050XX00US25001, checked 2026-10-19).

The median Yarmouth home was built in 1974 (ACS 2020-2024 5-year, table B25035, https://data.census.gov/table/ACSDT5Y2024.B25035?g=060XX00US2500182525, checked 2026-10-19) and the median home has 5.4 rooms (ACS 2020-2024 5-year, table B25018, https://data.census.gov/table/ACSDT5Y2024.B25018?g=060XX00US2500182525, checked 2026-10-19).

81% of Yarmouth homes are single-family detached, 5% are in two- to four-unit buildings and 8% are in buildings of five or more units (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=060XX00US2500182525, checked 2026-10-19).

With 81% detached houses and 5% in small multi-family buildings, a Yarmouth quote is usually one or two outdoor units with ducted or ductless heads sized room by room. With 18% of Yarmouth homes rented (ACS 2020-2024 5-year, table B25003, https://data.census.gov/table/ACSDT5Y2024.B25003?g=060XX00US2500182525, checked 2026-10-19), the landlord signs the quote in many of them.

Only 7% of Yarmouth homes are new enough to pass the whole-home rebate's weatherization check on age, and 7% date from before 1940, so most of the other 93% show it with a home energy assessment before the heat pump goes in.

Rebate path

Eversource Energy lists Yarmouth among the Massachusetts communities it serves for electricity (Eversource Energy communities we serve, https://www.eversource.com/residential/services/communities-we-serve, checked 2026-10-19).

For a Yarmouth address billed by Eversource Energy, the Mass Save whole-home heat pump rebate is $2,650 per ton up to $8,500, and the partial-home rebate is $1,125 per ton up to $8,500; for projects installed on or after January 1, 2027, the whole-home figure drops to $2,350 per ton capped at $7,500 (Mass Save air-source heat pump rebates, https://www.masssave.com/residential/rebates-offers-services/heating-and-cooling/heat-pumps/air-source-heat-pumps, checked 2026-10-19).

Median household income in Yarmouth is $86,039 (ACS 2020-2024 5-year, table B19013, https://data.census.gov/table/ACSDT5Y2024.B19013?g=060XX00US2500182525, checked 2026-10-19); Mass Save's enhanced heat pump incentives are income-based and decided household by household, so the town median only hints at how many neighbors qualify.

Cold-day number

Heating design temperature: 10F. Source: ENERGY STAR Design Temperature Limit Reference Guide (2019 Edition), Barnstable County row, 99% heating, PDF page 56 of 141 (Revised 11/11/2020), https://www.energystar.gov/sites/default/files/Design%20Temperature%20Limit%20Reference%20Guide%20(2019%20Ed)%20-%20ENERGY%20STAR%20Single-Family%20New%20Homes_Rev11.pdf, fetched 2026-10-19, 99%.

That 10F figure is the Barnstable County cold-day number a Yarmouth heat pump is sized against, so ask the installer to show the system's heating output at 10F, not at the milder rating-label temperature.

Next step

Ask whether the quote is whole-home or partial-home, because with 78% of Yarmouth on gas and 8% already electric the two paths carry different rebate figures and different sizing.

Ask for the heat-loss calculation room by room; the median Yarmouth home has 5.4 rooms and was built around 1974, and the count of heads and the tonnage follow the rooms and the insulation, not the square footage.

The form on this page is the follow-up for Yarmouth. The public number is the number the contractor quotes from.

No local contractor is named on this door for Yarmouth yet. A request from this page goes to the first licensed shop that takes the door.

Where should the follow-up go?

We will follow up by email. No calls.

No spam, no sold information. One follow-up about exactly this request.