Charleston / Hanahan
Hanahan has 21,452 residents (give or take 40) (ACS 2020-2024 5-year, table B01003, https://data.census.gov/table/ACSDT5Y2024.B01003?g=160XX00US4532065, checked 2026-10-19), about 2,041 people per square mile.
Hanahan is about 7 miles from the Census center point for Charleston in a straight line and covers 10.509 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 Hanahan that is 29410 (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).
Of the 8,009 occupied homes in Hanahan, 30% heat with natural gas, 0% with heating oil, 65% with electricity and 2% with propane (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=160XX00US4532065, checked 2026-10-19).
Electricity already heats 65% of Hanahan homes, ahead of gas at 30%, and a home on electric baseboard sees the biggest bill change from a heat pump because it replaces resistance heat one for one.
Hanahan has about the Berkeley County oil share of 0% and 12 points less electric heat than the county's 77% (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=050XX00US45015, checked 2026-10-19).
Hanahan has 8,671 housing units, 0% built before 1940 and 45% before 1980, with 39% built in 2000 or later (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=160XX00US4532065, checked 2026-10-19).
Hanahan has 15 points fewer homes built after 2000 than the county's 54% (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=050XX00US45015, checked 2026-10-19).
The median Hanahan home was built in 1986 (ACS 2020-2024 5-year, table B25035, https://data.census.gov/table/ACSDT5Y2024.B25035?g=160XX00US4532065, checked 2026-10-19) and the median home has 5.9 rooms (ACS 2020-2024 5-year, table B25018, https://data.census.gov/table/ACSDT5Y2024.B25018?g=160XX00US4532065, checked 2026-10-19).
70% of Hanahan homes are single-family detached, 5% are in two- to four-unit buildings and 16% are in buildings of five or more units (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=160XX00US4532065, checked 2026-10-19).
With 70% detached houses and 5% in small multi-family buildings, a Hanahan quote is usually one or two outdoor units with ducted or ductless heads sized room by room. With 32% of Hanahan homes rented (ACS 2020-2024 5-year, table B25003, https://data.census.gov/table/ACSDT5Y2024.B25003?g=160XX00US4532065, checked 2026-10-19), the landlord signs the quote in many of them.
No electric utility is on file for Hanahan on this door yet, so this page does not name one; the name on the bill decides which rebate path applies.
Median household income in Hanahan is $87,984 (ACS 2020-2024 5-year, table B19013, https://data.census.gov/table/ACSDT5Y2024.B19013?g=160XX00US4532065, 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: 26F. Source: ENERGY STAR Design Temperature Limit Reference Guide (2019 Edition), Berkeley County row, 99% heating, PDF pages 105 to 107 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 26F figure is the Berkeley County cold-day number a Hanahan heat pump is sized against, so ask the installer to show the system's heating output at 26F, not at the milder rating-label temperature.
Ask for the heat-loss calculation room by room; the median Hanahan home has 5.9 rooms and was built around 1986, 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 Hanahan. The public number is the number the contractor quotes from.
No local contractor is named on this door for Hanahan yet. A request from this page goes to the first licensed shop that takes the door.