Harrisburg / Harrisburg
Harrisburg has 50,287 residents (give or take 51) (ACS 2020-2024 5-year, table B01003, https://data.census.gov/table/ACSDT5Y2024.B01003?g=160XX00US4232800, checked 2026-10-19), about 6,194 people per square mile.
Harrisburg is the city this door is named for; it covers 8.119 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 Harrisburg that is 17101, 17102, 17103, 17104, 17120 (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 Harrisburg is $48,099 (ACS 2020-2024 5-year, table B19013, https://data.census.gov/table/ACSDT5Y2024.B19013?g=160XX00US4232800, 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.
6,194 people per square mile puts Harrisburg in suburban density, where the outdoor unit usually sits in a side yard and the noise is not an issue for neighbors.
14% of Harrisburg homes are single-family detached, 14% are in two- to four-unit buildings and 28% are in buildings of five or more units (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=160XX00US4232800, checked 2026-10-19).
63% of Harrisburg homes are rented (ACS 2020-2024 5-year, table B25003, https://data.census.gov/table/ACSDT5Y2024.B25003?g=160XX00US4232800, checked 2026-10-19), so beside the 14% detached houses there is a real share of jobs where the landlord, not the resident, signs the quote.
Harrisburg has 36 points fewer detached houses than Dauphin County overall (50%) and 11 points more five-plus-unit buildings than the county's 17% (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=050XX00US42043, checked 2026-10-19).
With 63% of Harrisburg homes rented (ACS 2020-2024 5-year, table B25003, https://data.census.gov/table/ACSDT5Y2024.B25003?g=160XX00US4232800, 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 22,137 occupied homes in Harrisburg, 55% heat with natural gas, 5% with heating oil, 35% with electricity and 4% with propane (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=160XX00US4232800, checked 2026-10-19).
Gas heats 55% of Harrisburg against electricity at 35%, 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.
Harrisburg has 10 points less oil heat than Dauphin County as a whole, where 15% of homes burn oil, and 3 points less electric heat than the county's 38% (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=050XX00US42043, checked 2026-10-19).
No electric utility is on file for Harrisburg on this door yet, so this page does not name one; the name on the bill decides which rebate path applies.
Harrisburg has 24,130 housing units, 43% built before 1940 and 85% before 1980, with 6% built in 2000 or later (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=160XX00US4232800, checked 2026-10-19).
Harrisburg has 24 points more pre-1940 homes than Dauphin County as a whole (19%) and 11 points fewer homes built after 2000 than the county's 17% (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=050XX00US42043, checked 2026-10-19). An older stock means more insulation upgrades before the heat pump goes in.
The median Harrisburg home was built in 1947 (ACS 2020-2024 5-year, table B25035, https://data.census.gov/table/ACSDT5Y2024.B25035?g=160XX00US4232800, checked 2026-10-19) and the median home has 5 rooms (ACS 2020-2024 5-year, table B25018, https://data.census.gov/table/ACSDT5Y2024.B25018?g=160XX00US4232800, checked 2026-10-19).
43% of Harrisburg homes were built before 1940 and 85% before 1980 (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=160XX00US4232800, 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: 7F. Source: ENERGY STAR Design Temperature Limit Reference Guide (2019 Edition), Dauphin County row, 99% heating, PDF pages 102 to 105 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 7F figure is the Dauphin County cold-day number a Harrisburg heat pump is sized against, so ask the installer to show the system's heating output at 7F, not at the milder rating-label temperature.
Ask whether the quote is whole-home or partial-home, because with 55% of Harrisburg on gas and 35% already electric the two paths carry different rebate figures and different sizing.
Ask for the heat-loss calculation room by room; a Harrisburg house from before 1940 (43% of the 24,130 units) rarely matches a square-footage rule of thumb.
The form on this page is the follow-up for Harrisburg. The public number is the number the contractor quotes from.
No local contractor is named on this door for Harrisburg yet. A request from this page goes to the first licensed shop that takes the door.