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A furnace repair in this area starts with what the system has been asked to do over its life, and severe weather accounts for less of that story than most homeowners expect. 49 severe weather events were recorded in San Patricio County, Texas between 2015 and 2024. At that rate, storms are an occasional fact here, not a standing condition, and a heat exchanger cracking or a control board failing almost certainly traces back to deferred maintenance or the age of the unit rather than weather load. A contractor will check combustion quality, filter history, and component wear before anything else.
Furnaces in houses this old are frequently running components that manufacturers have discontinued or replaced with redesigned versions that do not interchange directly. Half the homes in San Patricio County, Texas were built in 1982 or earlier (2020-2024 ACS 5-year). When a contractor opens a furnace in stock like this, the question is not always what is broken but whether what is broken can be replaced with the same part or requires an adapted solution. That distinction changes both what gets ordered and how long the repair takes.
The Parts of a Furnace a Contractor Checks First
The heat exchanger sits inside the furnace cabinet, usually in a basement, utility closet, or garage, and it is the part that warms the air your home circulates. Cracks or stress in the exchanger are a common source of heating failure. The burner assembly feeds into it, and a fault there shows up as weak or uneven heat.
The blower motor and its fan wheel sit in the lower half of the cabinet and push conditioned air out through the supply side of the duct system. The control board, also inside the cabinet, reads signals from the thermostat and tells the burner and blower when to run. A failed board can mimic symptoms that look like burner or motor problems, so a contractor checks it alongside the other components.
The drawing shows the general layout of a furnace system, and a licensed contractor determines which parts apply to your specific house and situation.
Find a contractor in San Patricio CountySan Patricio County, by the numbers
49 severe weather events were recorded in San Patricio 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 San Patricio County, Texas were built in 1982 or earlier (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesSan Patricio County, Texas holds 30,435 housing units (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOwners occupy 66.9% of the occupied homes in San Patricio County, Texas (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesFurnace Repair Rules on the Books for San Patricio County, Texas5 codes, standards & statutes
What Happens When a Contractor Comes Out
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 Repair in San Patricio 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.
Severe Weather Events in San Patricio County
Extreme weather puts real stress on furnace components, and that stress adds up over time. How often conditions push equipment hard is a local fact, which is why repair needs in San Patricio County are best understood against what the weather here actually does.
49 severe weather events, 2015–2024. Source: NOAA National Centers for Environmental Information, Storm Events Database.