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A furnace contractor quoting a job in Scioto County has to size the system against what this area actually runs through, not against a catalog average. 134 severe weather events were recorded in Scioto County, Ohio between 2015 and 2024. At that rate, severe weather is a standing condition of operating a heating system here, and a contractor who ignores it will size too light, leaving the system working harder than it should every time a storm front moves through. Proper installation starts with that load as a given.
Ductwork laid into a house that old was designed around the unit that came with it, and the unit that came with it is gone. Half the homes in Scioto County, Ohio were built in 1968 or earlier (2020-2024 ACS 5-year). A contractor installing a new furnace here has to assess whether those existing runs can carry the airflow a modern system delivers, and whether the electrical service at the panel meets what the new equipment draws. If either falls short, the scope changes before the furnace itself is even priced.
What Gets Installed With a New Furnace
The furnace itself sits in a utility space, most often a basement, closet, or mechanical room. It is the central unit that burns fuel or runs resistance coils to produce heat. A flue pipe or vent stack exits through the wall or roof to carry combustion gases out of the house.
The air handler or blower compartment, which may be built into the furnace cabinet or mounted separately, moves conditioned air into the supply plenum at the top of the unit. A thermostat mounts on a main-floor wall and is the control point for the whole system. A shut-off and a filter housing sit close to the unit, one for safety and one to catch particulates before air reaches the heat exchanger.
The drawing shows a typical layout, and a licensed contractor determines exactly which components apply to your home and how each one gets configured.
Get matched in Scioto CountyScioto County, by the numbers
134 severe weather events were recorded in Scioto County, Ohio between 2015 and 2024.
NOAA National Centers for Environmental Information, Storm Events Database, bulk CSV export, events 2015-01-01 through 2024-12-31.Half the homes in Scioto County, Ohio were built in 1968 or earlier (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesScioto County, Ohio holds 33,070 housing units (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOwners occupy 68.4% of the occupied homes in Scioto County, Ohio (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesCodes & Standards for Furnace Installation in Scioto County, Ohio18 sourced rules & standards
What happens when the contractor shows up
Non-weatherized gas furnaces manufactured on or after November 19, 2015 must reach 80.0 percent AFUE.
Non-weatherized oil-fired furnaces manufactured on or after November 19, 2015 must reach 83.0 percent AFUE.
Mobile home gas furnaces manufactured on or after November 19, 2015 must reach 80.0 percent AFUE.
Non-weatherized gas furnaces manufactured on or after December 18, 2028 must reach 95.0 percent AFUE, up from the 80.0 percent minimum that applies to units manufactured before that date.
Licensing and Legal Requirements in Scioto County, Ohio
An Ohio home construction services contract must include a copy of the supplier's certificate of insurance showing general liability coverage of not less than two hundred fifty thousand dollars.
In Ohio a home construction service means the construction of a residential building, including the repair, improvement, remodel or renovation of an existing structure, and does not include construction on a structure containing four or more dwelling units except for work on an individual dwelling unit within it.
A home construction service supplier in Ohio is defined as a person who contracts with an owner to provide home construction services for compensation and who maintains a general liability insurance policy of not less than two hundred fifty thousand dollars.
The Ohio construction industry licensing board issues state licenses to individuals as heating, ventilating and air conditioning contractors, refrigeration contractors, electrical contractors, plumbing contractors and hydronics contractors.
An Ohio board of county commissioners may accept a valid and unexpired Chapter 4740 license held by a heating, ventilating and air conditioning contractor toward its own licensing requirements for work on one-, two-, or three-family dwelling houses.
An Ohio board of county commissioners may adopt rules licensing heating, ventilating and air conditioning contractors who are not required to hold a state license under Chapter 4740.
In Ohio municipal law a specialty contractor includes heating, ventilating and air conditioning contractors, refrigeration contractors, electrical contractors, plumbing contractors and hydronics contractors.
An Ohio board of county commissioners may not register a specialty contractor who is required to hold a license under Chapter 4740 but does not hold a valid one.
An Ohio municipal corporation may not register a specialty contractor who is required to hold a license under Chapter 4740 but does not hold a valid one.
In Ohio building law a residential building means a one-family, two-family or three-family dwelling house and any accessory structure incidental to it, and does not include an industrialized unit, a manufactured home or a mobile home.
Ohio's contractor licensing chapter reaches only work on a construction project, and a construction project is defined to exclude residential buildings, so an HVAC contractor working on a one-, two-, or three-family dwelling in Ohio falls outside the state licensing requirement.
Violating Ohio's contractor licensing prohibition is a minor misdemeanor on a first violation and a misdemeanor of the fourth degree on subsequent violations.
Under Ohio law no person may act as or claim to be a type of contractor that Chapter 4740 licenses unless that person holds a license issued under that chapter.
In Ohio a home construction service supplier may not perform a home construction service costing twenty-five thousand dollars or more without entering into a written home construction services contract with the owner, unless the supplier and owner enter into a cost-plus contract.
Severe Weather Events in Scioto County
Heating equipment in Scioto County works against whatever the local climate demands of it, and that demand is shaped by how hard the weather bears down year over year. A furnace sized and installed for actual local conditions holds up differently than one spec'd without that picture.
134 severe weather events, 2015–2024. Source: NOAA National Centers for Environmental Information, Storm Events Database.