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A contractor quoting a furnace installation in Hocking County has to settle one question early: what has this system actually been running against? 78 severe weather events were recorded in Hocking County, Ohio between 2015 and 2024. At that rate, severe weather is a periodic fact of life here rather than a constant grind, which means a failing furnace is almost always failing for reasons the installer finds inside the equipment itself. Duct configuration, prior installation quality, and how well the old unit was maintained are what shape the sizing decisions for what goes in next.
Ductwork sized and routed for an older heating system does not automatically carry a modern furnace well. A contractor installing a new furnace here will open up what is already in the walls and ceilings before the equipment choice settles anything, because the runs, the returns, and the trunk sizes were built around conditions that no longer apply. Half the homes in Hocking County, Ohio were built in 1981 or earlier (2020-2024 ACS 5-year). That vintage of construction predates the load calculations and duct geometry that current equipment assumes, so what a contractor finds in the house sets the real scope of the job, and the furnace itself comes second.
What Gets Installed With a New Furnace
The furnace itself sits in a basement, utility room, or closet and is the central unit a contractor places first. Attached to it is the flue or exhaust vent, which exits through the wall or roof and carries combustion gases out of the house. The air handler blower, housed inside the furnace cabinet, pushes conditioned air into the supply side of the home.
The thermostat mounts on an interior wall and gives the homeowner direct control over the system. A contractor also installs or connects the condensate drain line, which runs from the furnace to a floor drain or utility sink and carries away moisture the unit pulls from the air during operation.
The drawing shows a general layout of these components, and a licensed contractor determines exactly how each one applies to your house.
Get matched in Hocking CountyHocking County, by the numbers
78 severe weather events were recorded in Hocking 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 Hocking County, Ohio were built in 1981 or earlier (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesHocking County, Ohio holds 13,013 housing units (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOwners occupy 78.8% of the occupied homes in Hocking County, Ohio (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesFurnace Installation Rules & Codes for Hocking County, Ohio18 sourced rules and standards
What the Installation Actually Looks Like
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 Rules for HVAC Work in Hocking 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 Hocking County
Weather puts real load on heating equipment, and that load varies by where you live. A furnace sized and installed for local conditions holds up better than one spec'd to a national average.
78 severe weather events, 2015–2024. Source: NOAA National Centers for Environmental Information, Storm Events Database.