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Sizing a central AC for this area starts with what the climate actually asks of the equipment, and the weather record here is one input into that. 55 severe weather events were recorded in Concho County, Texas between 2015 and 2024. At that rate, severe weather is real but not relentless, which means a contractor quoting an installation is not engineering around a punishing load. The decisions that determine whether a system performs well in Concho County are the ones made on install day: correct sizing for the structure, tight duct work, and a refrigerant charge done to spec rather than by feel.
Existing ductwork and electrical service are what a contractor has to size up before a central AC job in Concho County takes shape. Half the homes in Concho County, Texas were built in 1973 or earlier (2020-2024 ACS 5-year). A house built before central air became standard was wired and ducted for a different load, and what is behind the walls now reflects decades of adaptation rather than a single planned system. Whether those ducts move enough air and whether the panel carries what a new unit draws are the questions that set the scope of the job.
What a Central AC System Includes
The indoor air handler sits inside the house, usually in a closet, attic, or utility room, and moves conditioned air through the home. The outdoor condenser unit sits on a concrete pad beside the house and holds the compressor and condenser coil. Together these two units are what a Central AC installation puts in place.
The refrigerant line set runs between the indoor and outdoor units, carrying refrigerant between the two. A condensate drain line runs from the air handler to a nearby drain, removing moisture pulled from the indoor air. The thermostat mounts on an interior wall and serves as the control point for the whole system.
The drawing shows a typical layout, and a licensed contractor determines exactly what applies to your house.
Get matched in Concho CountyConcho County, by the numbers
55 severe weather events were recorded in Concho 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 Concho County, Texas were built in 1973 or earlier (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesConcho County, Texas holds 1,414 housing units (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOwners occupy 80.5% of the occupied homes in Concho County, Texas (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesRules & Standards Behind Central AC Installation in Concho County, Texas9 sourced rules and standards
What the installation actually looks like
Split-system central air conditioners rated below 45,000 Btu/h manufactured on or after January 1, 2023 must meet a federal minimum of 13.4 SEER2.
Split-system central air conditioners rated at or above 45,000 Btu/h manufactured on or after January 1, 2023 must meet a federal minimum of 13.4 SEER2.
Split-system central air conditioners manufactured between January 1, 2015 and December 31, 2022 had to meet 13 SEER, the metric that preceded SEER2.
Single-package central air conditioners manufactured on or after January 1, 2023 must meet a federal minimum of 13.4 SEER2.
Space-constrained central air conditioners manufactured on or after January 1, 2023 must meet a federal minimum of 11.7 SEER2.
Federal efficiency standards for split-system central air conditioners and heat pumps are set on each certified combination of outdoor unit and indoor coil rather than on the outdoor unit alone.
Residential and light commercial air conditioning and heat pump systems assembled in the field, including mini-splits and unitary systems, may not be installed on or after January 1, 2025 using a refrigerant with a global warming potential above 700.
A field-assembled system whose specified components were all manufactured or imported before January 1, 2025 carries no installation compliance date under the refrigerant restrictions and may still be installed.
What Concho County, Texas Requires for HVAC Installation
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 Concho County
Weather patterns shape how hard HVAC equipment has to work and how often it gets pushed to its limits. For central AC installation in this part of Texas, local conditions are a practical input, not a backdrop.
55 severe weather events, 2015–2024. Source: NOAA National Centers for Environmental Information, Storm Events Database.