Hartford / New Haven
New Haven has 134,349 residents (give or take 55) (ACS 2020-2024 5-year, table B01003, https://data.census.gov/table/ACSDT5Y2024.B01003?g=060XX00US0917052070, checked 2026-10-19), about 7,188 people per square mile.
New Haven is about 34 miles from the Census center point for Hartford in a straight line and covers 18.69 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 New Haven that is 06510, 06511, 06512, 06513, 06515, 06519 (Census 2020 ZCTA to county subdivision and ZCTA to place relationship files, ZIP areas at least 20% inside the town, https://www2.census.gov/geo/docs/maps-data/data/rel2020/zcta520/tab20_zcta520_cousub20_natl.txt and https://www2.census.gov/geo/docs/maps-data/data/rel2020/zcta520/tab20_zcta520_place20_natl.txt, checked 2026-10-19).
Median household income in New Haven is $56,851 (ACS 2020-2024 5-year, table B19013, https://data.census.gov/table/ACSDT5Y2024.B19013?g=060XX00US0917052070, 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.
7,188 people per square mile puts New Haven in suburban density, where the outdoor unit usually sits in a side yard and the noise is not an issue for neighbors.
20% of New Haven homes are single-family detached, 39% are in two- to four-unit buildings and 35% are in buildings of five or more units (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=060XX00US0917052070, checked 2026-10-19).
A two- or three-family building is the common New Haven case at 39% of the stock against 20% detached houses, and each unit usually gets its own small outdoor unit and its own rebate account rather than one big system for the building. With 72% of New Haven homes rented (ACS 2020-2024 5-year, table B25003, https://data.census.gov/table/ACSDT5Y2024.B25003?g=060XX00US0917052070, checked 2026-10-19), the landlord signs the quote in many of them.
New Haven has 33 points fewer detached houses than South Central Connecticut Planning Region overall (53%) and 13 points more five-plus-unit buildings than the county's 22% (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=050XX00US09170, checked 2026-10-19).
With 72% of New Haven homes rented (ACS 2020-2024 5-year, table B25003, https://data.census.gov/table/ACSDT5Y2024.B25003?g=060XX00US0917052070, checked 2026-10-19), most heat pump quotes here are landlord-driven: the landlord signs the contract and picks the equipment, and the tenant sees the lower bill.
Of the 54,773 occupied homes in New Haven, 60% heat with natural gas, 9% with heating oil, 26% with electricity and 3% with propane (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=060XX00US0917052070, checked 2026-10-19).
Gas heats 60% of New Haven against electricity at 26%, 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.
New Haven has 21 points less oil heat than South Central Connecticut Planning Region as a whole, where 30% of homes burn oil, and 8 points more electric heat than the county's 18% (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=050XX00US09170, checked 2026-10-19).
United Illuminating lists New Haven among the Connecticut communities it serves for electricity (United Illuminating service area, https://www.uinet.com, checked 2026-10-19).
Energize CT residential heat pump rebate, run by Energize CT, is a live program for Connecticut addresses and publishes its terms without one headline figure (registry row 3 verified 2026-10-15, https://www.energizect.com/node/68091, checked 2026-10-16); confirm eligibility for the New Haven address before counting it. With 26% of New Haven homes already on electric heat and 72% on gas, oil or propane, the row that applies depends on the name on the electric bill and the fuel coming out.
New Haven has 60,333 housing units, 40% built before 1940 and 78% before 1980, with 10% built in 2000 or later (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=060XX00US0917052070, checked 2026-10-19).
New Haven has 17 points more pre-1940 homes than South Central Connecticut Planning Region as a whole (23%) (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=050XX00US09170, checked 2026-10-19). An older stock means more insulation upgrades before the heat pump goes in.
The median New Haven home was built in 1954 (ACS 2020-2024 5-year, table B25035, https://data.census.gov/table/ACSDT5Y2024.B25035?g=060XX00US0917052070, checked 2026-10-19) and the median home has 4.5 rooms (ACS 2020-2024 5-year, table B25018, https://data.census.gov/table/ACSDT5Y2024.B25018?g=060XX00US0917052070, checked 2026-10-19).
40% of New Haven homes were built before 1940 and 78% before 1980 (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=060XX00US0917052070, checked 2026-10-19), so insulation is the first sizing question: an older home leaks more heat per square foot, and the installer runs a room-by-room heat-loss calculation to size the system for what the walls and windows actually hold in, not just the floor plan.
Heating design temperature: 2F. Source: ENERGY STAR Design Temperature Limit Reference Guide (2019 Edition), New Haven County row, 99% heating, PDF page 17 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; town filed under New Haven County by Census Bureau, Connecticut county to county subdivision crosswalk (legacy county for each 2022 planning region town), https://www2.census.gov/geo/docs/reference/ct_change/ct_cou_to_cousub_crosswalk.txt, fetched 2026-10-19, 99%.
That 2F figure is the New Haven County cold-day number a New Haven heat pump is sized against, so ask the installer to show the system's heating output at 2F, not at the milder rating-label temperature.
Ask whether the quote is whole-home or partial-home, because with 60% of New Haven on gas and 26% already electric the two paths carry different rebate figures and different sizing.
Ask for the heat-loss calculation room by room; a New Haven house from before 1940 (40% of the 60,333 units) rarely matches a square-footage rule of thumb.
The form on this page is the follow-up for New Haven. The public number is the number the contractor quotes from.
No local contractor is named on this door for New Haven yet. A request from this page goes to the first licensed shop that takes the door.