Manchester / Charlestown
Charlestown has 4,889 residents (give or take 27) (ACS 2020-2024 5-year, table B01003, https://data.census.gov/table/ACSDT5Y2024.B01003?g=060XX00US3301911380, checked 2026-10-19), about 137 people per square mile.
Charlestown is about 51 miles from the Census center point for Manchester in a straight line and covers 35.764 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 Charlestown that is 03603 (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).
Charlestown is spread out at 137 people per square mile across 35.764 square miles of land, so a long refrigerant line run between the outdoor unit and the farthest indoor head is the sizing question an installer checks first.
Of the 1,543 occupied homes in Charlestown, 2% heat with natural gas, 56% with heating oil, 2% with electricity and 22% with propane (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=060XX00US3301911380, checked 2026-10-19).
Heating oil is the largest single fuel in Charlestown at 56%, ahead of propane at 22%, so the usual job here is an oil boiler or furnace coming out and a cold-climate heat pump going in, with the oil tank removed.
Charlestown has 6 points more oil heat than Sullivan County as a whole, where 50% of homes burn oil, and 3 points less electric heat than the county's 5% (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=050XX00US33019, checked 2026-10-19).
Charlestown has 1,826 housing units, 20% built before 1940 and 55% before 1980, with 12% built in 2000 or later (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=060XX00US3301911380, checked 2026-10-19).
Charlestown has 4 points fewer pre-1940 homes than Sullivan County as a whole (24%) (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=050XX00US33019, checked 2026-10-19).
The median Charlestown home was built in 1977 (ACS 2020-2024 5-year, table B25035, https://data.census.gov/table/ACSDT5Y2024.B25035?g=060XX00US3301911380, checked 2026-10-19) and the median home has 5.2 rooms (ACS 2020-2024 5-year, table B25018, https://data.census.gov/table/ACSDT5Y2024.B25018?g=060XX00US3301911380, checked 2026-10-19).
64% of Charlestown homes are single-family detached, 6% are in two- to four-unit buildings and 5% are in buildings of five or more units (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=060XX00US3301911380, checked 2026-10-19).
22% of Charlestown homes are rented (ACS 2020-2024 5-year, table B25003, https://data.census.gov/table/ACSDT5Y2024.B25003?g=060XX00US3301911380, checked 2026-10-19), so beside the 64% detached houses there is a real share of jobs where the landlord, not the resident, signs the quote.
Charlestown has 10 points fewer detached houses than Sullivan County overall (74%) (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=050XX00US33019, checked 2026-10-19).
Eversource, Liberty Utilities and New Hampshire Electric Cooperative each list Charlestown for electric service (New Hampshire Department of Energy, utilities by city and town, https://www.energy.nh.gov/utilities-providers/utilities-city-town, checked 2026-10-19); the bill decides the rebate path.
NHSaves air source heat pump rebate, run by NHSaves (Eversource, Liberty, Unitil), is a live program for New Hampshire addresses and lists a standard figure of $250 (registry row 6 verified 2026-10-14, https://nhsaves.com/residential/electric-heating-cooling-equipment/, checked 2026-10-16); confirm eligibility for the Charlestown address before counting it. With 2% of Charlestown homes already on electric heat and 80% on gas, oil or propane, the row that applies depends on the name on the electric bill and the fuel coming out.
Median household income in Charlestown is $47,338 (ACS 2020-2024 5-year, table B19013, https://data.census.gov/table/ACSDT5Y2024.B19013?g=060XX00US3301911380, 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: -4F. Source: ENERGY STAR Design Temperature Limit Reference Guide (2019 Edition), Sullivan County row, 99% heating, PDF page 81 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 -4F figure is the Sullivan County cold-day number a Charlestown heat pump is sized against, so ask the installer to show the system's heating output at -4F, not at the milder rating-label temperature.
Ask what happens to the oil tank, since 56% of the 1,543 occupied Charlestown homes have one and removal is usually a separate line on the quote.
Ask for the heat-loss calculation room by room; the median Charlestown home has 5.2 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 Charlestown. The public number is the number the contractor quotes from.
No local contractor is named on this door for Charlestown yet. A request from this page goes to the first licensed shop that takes the door.