Cincinnati / Fairfield
Fairfield has 44,828 residents (give or take 35) (ACS 2020-2024 5-year, table B01003, https://data.census.gov/table/ACSDT5Y2024.B01003?g=160XX00US3925970, checked 2026-10-19), about 2,152 people per square mile.
Fairfield is about 13 miles from the Census center point for Cincinnati in a straight line and covers 20.832 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 Fairfield that is 45014 (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 18,428 occupied homes in Fairfield, 41% heat with natural gas, 3% with heating oil, 53% with electricity and 1% with propane (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=160XX00US3925970, checked 2026-10-19).
Electricity already heats 53% of Fairfield homes, ahead of gas at 41%, and a home on electric baseboard sees the biggest bill change from a heat pump because it replaces resistance heat one for one.
Fairfield has about the Butler County oil share of 3% and 13 points more electric heat than the county's 40% (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=050XX00US39017, checked 2026-10-19).
Fairfield has 19,548 housing units, 2% built before 1940 and 56% before 1980, with 15% built in 2000 or later (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=160XX00US3925970, checked 2026-10-19).
The median Fairfield home was built in 1978 (ACS 2020-2024 5-year, table B25035, https://data.census.gov/table/ACSDT5Y2024.B25035?g=160XX00US3925970, checked 2026-10-19) and the median home has 5.8 rooms (ACS 2020-2024 5-year, table B25018, https://data.census.gov/table/ACSDT5Y2024.B25018?g=160XX00US3925970, checked 2026-10-19).
56% of Fairfield homes are single-family detached, 7% are in two- to four-unit buildings and 26% are in buildings of five or more units (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=160XX00US3925970, checked 2026-10-19).
37% of Fairfield homes are rented (ACS 2020-2024 5-year, table B25003, https://data.census.gov/table/ACSDT5Y2024.B25003?g=160XX00US3925970, checked 2026-10-19), so beside the 56% detached houses there is a real share of jobs where the landlord, not the resident, signs the quote.
No electric utility is on file for Fairfield on this door yet, so this page does not name one; the name on the bill decides which rebate path applies.
Heating design temperature: 2F. Source: ENERGY STAR Design Temperature Limit Reference Guide (2019 Edition), Butler 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 2F figure is the Butler County cold-day number a Fairfield 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 for the heat-loss calculation room by room; the median Fairfield home has 5.8 rooms and was built around 1978, 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 Fairfield. The public number is the number the contractor quotes from.
No local contractor is named on this door for Fairfield yet. A request from this page goes to the first licensed shop that takes the door.