Boston / Mansfield
Mansfield has 23,931 residents (give or take 27) (ACS 2020-2024 5-year, table B01003, https://data.census.gov/table/ACSDT5Y2024.B01003?g=060XX00US2500538225, checked 2026-10-19), about 1,190 people per square mile.
Mansfield is about 24 miles from the Census center point for Boston in a straight line and covers 20.104 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 Mansfield that is 02048 (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).
Of the 9,146 occupied homes in Mansfield, 50% heat with natural gas, 22% with heating oil, 23% with electricity and 3% with propane (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=060XX00US2500538225, checked 2026-10-19).
Gas leads in Mansfield at 50%, but 24% of homes still burn delivered oil or propane, and those 2,195 or so homes are where a heat pump pays back fastest.
Mansfield has about the Bristol County oil share of 23% and 10 points more electric heat than the county's 13% (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=050XX00US25005, checked 2026-10-19).
Mansfield has 9,315 housing units, 16% built before 1940 and 49% before 1980, with 15% built in 2000 or later (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=060XX00US2500538225, checked 2026-10-19).
Mansfield has 16 points fewer pre-1940 homes than Bristol County as a whole (32%) and 3 points more homes built after 2000 than the county's 12% (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=050XX00US25005, checked 2026-10-19).
The median Mansfield home was built in 1980 (ACS 2020-2024 5-year, table B25035, https://data.census.gov/table/ACSDT5Y2024.B25035?g=060XX00US2500538225, checked 2026-10-19) and the median home has 6.3 rooms (ACS 2020-2024 5-year, table B25018, https://data.census.gov/table/ACSDT5Y2024.B25018?g=060XX00US2500538225, checked 2026-10-19).
60% of Mansfield homes are single-family detached, 10% are in two- to four-unit buildings and 23% are in buildings of five or more units (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=060XX00US2500538225, checked 2026-10-19).
27% of Mansfield homes are rented (ACS 2020-2024 5-year, table B25003, https://data.census.gov/table/ACSDT5Y2024.B25003?g=060XX00US2500538225, checked 2026-10-19), so beside the 60% detached houses there is a real share of jobs where the landlord, not the resident, signs the quote.
Mansfield has 7 points more detached houses than Bristol County overall (53%) (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=050XX00US25005, checked 2026-10-19).
Mansfield is also on the state table of towns served by a municipal light plant, Mansfield Municipal Electric Department (Massachusetts municipally-owned electric companies, https://www.mass.gov/info-details/massachusetts-municipally-owned-electric-companies, checked 2026-10-19).
Mass Save heat pump rebates are for electric accounts with Cape Light Compact, Eversource, National Grid or Unitil, so a Mansfield home billed by Mansfield Municipal Electric Department asks the plant for its heat pump rebate instead.
Median household income in Mansfield is $125,273 (ACS 2020-2024 5-year, table B19013, https://data.census.gov/table/ACSDT5Y2024.B19013?g=060XX00US2500538225, checked 2026-10-19); many state and utility heat pump rebate programs set higher incentive tiers for income-qualifying households, so the household income on the application, not the town median, decides which level applies.
Heating design temperature: 9F. Source: ENERGY STAR Design Temperature Limit Reference Guide (2019 Edition), Bristol 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 9F figure is the Bristol County cold-day number a Mansfield heat pump is sized against, so ask the installer to show the system's heating output at 9F, not at the milder rating-label temperature.
Ask whether the quote is whole-home or partial-home, because with 50% of Mansfield on gas and 23% already electric the two paths carry different rebate figures and different sizing.
Ask for the heat-loss calculation room by room; the median Mansfield home has 6.3 rooms and was built around 1980, 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 Mansfield. The public number is the number the contractor quotes from.
No local contractor is named on this door for Mansfield yet. A request from this page goes to the first licensed shop that takes the door.