Cincinnati / Warren
Warren has 38,912 residents (give or take 33) (ACS 2020-2024 5-year, table B01003, https://data.census.gov/table/ACSDT5Y2024.B01003?g=160XX00US3980892, checked 2026-10-19), about 2,439 people per square mile.
Warren is about 243 miles from the Census center point for Cincinnati in a straight line and covers 15.956 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 Warren that is 44483, 44485 (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 16,871 occupied homes in Warren, 86% heat with natural gas, 0% with heating oil, 12% with electricity and 1% with propane (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=160XX00US3980892, checked 2026-10-19).
Gas heats 86% of Warren against electricity at 12%, so most quotes here are a partial-home system that carries the shoulder seasons and the summer while the gas boiler stays for the deepest cold, or a whole-home system when the house is ready for it.
Warren has about the Trumbull County oil share of 2% and 1 points less electric heat than the county's 13% (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=050XX00US39155, checked 2026-10-19).
Warren has 19,012 housing units, 24% built before 1940 and 90% before 1980, with 4% built in 2000 or later (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=160XX00US3980892, checked 2026-10-19).
The median Warren home was built in 1955 (ACS 2020-2024 5-year, table B25035, https://data.census.gov/table/ACSDT5Y2024.B25035?g=160XX00US3980892, checked 2026-10-19) and the median home has 5.6 rooms (ACS 2020-2024 5-year, table B25018, https://data.census.gov/table/ACSDT5Y2024.B25018?g=160XX00US3980892, checked 2026-10-19).
71% of Warren homes are single-family detached, 9% 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=160XX00US3980892, checked 2026-10-19).
With 71% detached houses and 9% in small multi-family buildings, a Warren quote is usually one or two outdoor units with ducted or ductless heads sized room by room. With 44% of Warren homes rented (ACS 2020-2024 5-year, table B25003, https://data.census.gov/table/ACSDT5Y2024.B25003?g=160XX00US3980892, checked 2026-10-19), the landlord signs the quote in many of them.
No electric utility is on file for Warren on this door yet, so this page does not name one; the name on the bill decides which rebate path applies.
Heating design temperature: 4F. Source: ENERGY STAR Design Temperature Limit Reference Guide (2019 Edition), Trumbull County row, 99% heating, PDF pages 94 to 97 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 Trumbull County cold-day number a Warren 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 whether the quote is whole-home or partial-home, because with 86% of Warren on gas and 12% already electric the two paths carry different rebate figures and different sizing.
Ask for the heat-loss calculation room by room; the median Warren home has 5.6 rooms and was built around 1955, 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 Warren. The public number is the number the contractor quotes from.
No local contractor is named on this door for Warren yet. A request from this page goes to the first licensed shop that takes the door.