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A furnace that stops working in DeWitt County almost certainly failed for reasons a contractor can trace without blaming the weather. 22 severe weather events were recorded in DeWitt County, Texas between 2015 and 2024. At that rate, severe weather is an event in this county, not a standing condition, and a repair diagnosis here turns on how old the heat exchanger is, whether the filters have been changed, and whether the original install was sized and sealed correctly. A contractor who skips those questions and reaches for storm damage as an explanation is skipping the work.
Older ductwork and older furnaces accumulate the same years side by side, and when a contractor opens a unit here, what they find inside often reflects that shared history. Half the homes in DeWitt County, Texas were built in 1978 or earlier (2020-2024 ACS 5-year). A furnace that has been running in a house of this vintage may take components that current distributors carry on a short list or not at all, which changes what the contractor orders, how long the job takes, and whether a repair stays a repair or becomes a replacement conversation.
The Parts of a Furnace a Contractor Checks First
The heat exchanger sits inside the furnace cabinet and is the piece a contractor looks at closely during a repair call. Cracks or stress in the metal there let combustion gases mix with household air. The burners feed directly into it, and when they fire unevenly or not at all, that is where the diagnosis starts.
The blower motor and its fan wheel sit at the base of the cabinet and push conditioned air into the supply plenum. The control board, mounted inside the cabinet, reads the signals from your thermostat and tells every other component when to run. A failed board can mimic the symptoms of several other faults, so contractors check it alongside the igniter and flame sensor, which sit near the burners and are among the first pieces to show wear.
The drawing shows the general layout of a furnace system, and a licensed contractor determines which components apply to your specific installation.
Get matched in DeWitt CountyDeWitt County, by the record
22 severe weather events were recorded in DeWitt County, Texas 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 DeWitt County, Texas were built in 1978 or earlier (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesDeWitt County, Texas holds 9,238 housing units (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOwners occupy 73.9% of the occupied homes in DeWitt County, Texas (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesCodes & Standards Governing Furnace Repair in DeWitt County, Texas5 sourced rules and standards
What furnace repair looks like in DeWitt County
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 DeWitt County, Texas
In Texas a person may not engage in air conditioning and refrigeration contracting unless that person holds a license issued under the state air conditioning and refrigeration contractor law.