Boston / Walpole

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

Walpole, 18 miles out

Walpole is about 18 miles from the Census center point for Boston in a straight line and covers 20.454 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).

Walpole has 26,388 residents (give or take 34) (ACS 2020-2024 5-year, table B01003, https://data.census.gov/table/ACSDT5Y2024.B01003?g=060XX00US2502172495, checked 2026-10-19), about 1,290 people per square mile.

The quote form takes a ZIP code; for Walpole that is 02032, 02071, 02081 (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).

What heats Walpole

Of the 9,372 occupied homes in Walpole, 54% heat with natural gas, 31% with heating oil, 11% with electricity and 3% with propane (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=060XX00US2502172495, checked 2026-10-19).

Walpole has 8 points more oil heat than Norfolk County as a whole, where 23% of homes burn oil, and 7 points less electric heat than the county's 18% (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=050XX00US25021, checked 2026-10-19).

Gas leads in Walpole at 54%, but 34% of homes still burn delivered oil or propane, and those 3,186 or so homes are where a heat pump pays back fastest.

Age of the housing

The median Walpole home was built in 1977 (ACS 2020-2024 5-year, table B25035, https://data.census.gov/table/ACSDT5Y2024.B25035?g=060XX00US2502172495, checked 2026-10-19) and the median home has 6.8 rooms (ACS 2020-2024 5-year, table B25018, https://data.census.gov/table/ACSDT5Y2024.B25018?g=060XX00US2502172495, checked 2026-10-19).

Walpole has 9,801 housing units, 13% built before 1940 and 53% before 1980, with 17% built in 2000 or later (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=060XX00US2502172495, checked 2026-10-19).

Walpole has 13 points fewer pre-1940 homes than Norfolk County as a whole (26%) (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=050XX00US25021, checked 2026-10-19).

Only 17% of Walpole homes are new enough to pass the whole-home rebate's weatherization check on age, and 13% date from before 1940, so most of the other 83% show it with a home energy assessment before the heat pump goes in.

House type

72% of Walpole homes are single-family detached, 6% are in two- to four-unit buildings and 13% are in buildings of five or more units (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=060XX00US2502172495, checked 2026-10-19).

With 72% detached houses and 6% in small multi-family buildings, a Walpole quote is usually one or two outdoor units with ducted or ductless heads sized room by room. With 16% of Walpole homes rented (ACS 2020-2024 5-year, table B25003, https://data.census.gov/table/ACSDT5Y2024.B25003?g=060XX00US2502172495, checked 2026-10-19), the landlord signs the quote in many of them.

Walpole has 15 points more detached houses than Norfolk County overall (57%) and 12 points fewer five-plus-unit buildings than the county's 25% (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=050XX00US25021, checked 2026-10-19).

Utility and rebate

Eversource Energy lists Walpole 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 Walpole 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 Walpole is $171,500 (ACS 2020-2024 5-year, table B19013, https://data.census.gov/table/ACSDT5Y2024.B19013?g=060XX00US2502172495, 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.

Design temperature

Heating design temperature: 1F. Source: ENERGY STAR Design Temperature Limit Reference Guide (2019 Edition), Norfolk 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 1F figure is the Norfolk County cold-day number a Walpole heat pump is sized against, so ask the installer to show the system's heating output at 1F, not at the milder rating-label temperature.

Next step

Ask whether the quote is whole-home or partial-home, because with 54% of Walpole on gas and 11% already electric the two paths carry different rebate figures and different sizing.

Ask for the heat-loss calculation room by room; the median Walpole home has 6.8 rooms and was built around 1977, 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 Walpole. The public number is the number the contractor quotes from.

No local contractor is named on this door for Walpole 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.