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Sizing a furnace for Union County means accounting for a genuine heating season, not a marginal one. Homes in Union County, AR run heat about five months a year, from November through March. The burner and heat exchanger cycle repeatedly through those months, and a unit that is undersized for the actual load accumulates wear faster than one matched correctly to the house. A contractor running a load calculation here has to work from the structure of the specific home, because an install that cuts corners on that step puts stress on components that will not have long idle periods to recover.
Ductwork laid down for equipment that is long gone is what a contractor opens a Union County furnace job expecting to deal with. Half the homes in Union County, Arkansas were built in 1979 or earlier (2020-2024 ACS 5-year). Ducting sized for an older system often runs at the wrong dimensions or loses too much air through joints that were never sealed for current static pressures, and the electrical serving the original equipment may not support what a new furnace draws. Those two variables, not the unit on the truck, are what set the scope and the price of the job.
What a Furnace Installation Covers
The furnace itself sits inside the house, most often in a basement, utility room, or closet. It is the unit that generates heat and pushes conditioned air into the duct system. A new installation also includes the flue or venting pipe that carries combustion exhaust safely out of the house.
The thermostat mounts on an interior wall and gives the homeowner control over when the system runs and at what setpoint. A contractor also connects the furnace to the home's gas supply line and ties the unit into the existing duct openings so conditioned air reaches every room.
The drawing shows a typical layout, and a licensed contractor determines what applies to your specific home.
Find a contractor in Union CountyUnion County, Arkansas, by the numbers
113 severe weather events were recorded in Union County, Arkansas 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 Union County, Arkansas were built in 1979 or earlier (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesUnion County, Arkansas holds 18,649 housing units (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOwners occupy 72.7% of the occupied homes in Union County, Arkansas (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesCodes & Standards for Furnace Work in Union County, Arkansas6 sourced rules and 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 Rules for HVAC Work in Union County, Arkansas
An Arkansas HVACR licence is good across the state: no city or county may require its own licence to do HVACR work, though local permits and inspections still apply.
Arkansas requires an HVACR licence or registration: it is unlawful to do HVACR work without the appropriate one unless the chapter exempts you.
Severe Weather Events in Union County
Weather puts direct demands on heating equipment, and those demands vary by where you live. A furnace sized and installed for local conditions holds up better and runs more efficiently than one spec'd to a national average.
113 severe weather events, 2015–2024. Source: NOAA National Centers for Environmental Information, Storm Events Database.