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Sizing a mini-split in Gregg County means accounting for what the system will run against, not just what the catalog recommends for the square footage. 105 severe weather events were recorded in Gregg County, Texas between 2015 and 2024. At that rate, severe weather is a standing feature of the climate here, and a contractor has to treat it as a baseline load when selecting equipment and designing the install. A unit that fits a gentler environment may be undersized the first summer it runs.
The electrical panel a house was built with tells a contractor more about what a mini-split installation will cost than the wall space does. Half the homes in Gregg County, Texas were built in 1980 or earlier (2020-2024 ACS 5-year). Houses built around that period were typically wired for window units or older central systems, and the panel that served those loads often has to be evaluated before a circuit for a mini-split can be added. A contractor quoting the job will open the panel early, not as a formality, but because what it contains sets the scope.
The Parts of a Mini-Split System and Where Each One Goes
The indoor air handler mounts high on a wall inside the room being conditioned. It draws in room air, passes it across the coil inside the unit, and pushes treated air back out. Most homeowners notice it first because it is the piece they live with every day.
The outdoor unit sits on a pad or bracket outside the house and holds the compressor and the condenser coil. A refrigerant line set runs through a small hole in the wall to connect the two units, and a condensate drain line carries moisture away from the indoor handler to the outside.
The drawing shows a typical layout, and a licensed contractor determines exactly how each piece applies to your home.
Find a contractor in Gregg CountyGregg County, by the numbers
105 severe weather events were recorded in Gregg 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 Gregg County, Texas were built in 1980 or earlier (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesGregg County, Texas holds 53,883 housing units (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOwners occupy 60.3% of the occupied homes in Gregg County, Texas (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesCodes & Standards Governing Mini-Split Installation in Gregg County, Texas1 sourced rules and standards
Licensing Rules for Gregg 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 Gregg County
Gregg County's climate puts real pressure on heating and cooling equipment over time. How hard a system has to work is partly a local question, and the weather record here is part of that answer.
105 severe weather events, 2015–2024. Source: NOAA National Centers for Environmental Information, Storm Events Database.