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A contractor quoting a central AC installation in Uvalde County works out how hard this climate runs a system before settling on equipment size or specifying components. 60 severe weather events were recorded in Uvalde County, Texas between 2015 and 2024. At that rate, severe weather is a real but occasional part of life here, not a steady grind on every system. What that means for an install is that the sizing conversation centers on summer cooling demand and the house itself: duct layout, insulation, and the quality of the original installation all carry more weight in the final spec than storm history does.
Existing ductwork is where a central AC installation either holds together or gets complicated. Half the homes in Uvalde County, Texas were built in 1983 or earlier (2020-2024 ACS 5-year). A contractor coming in to put a new system in a house from that era is working against trunk lines and branch runs that were laid out for different equipment, with different static pressure requirements. Whether those runs can carry what a modern unit delivers, or whether they need to be rebalanced, resized, or partially replaced, is the question that shapes the scope and the price of the job before the new unit is ever ordered.
What a Central AC System Includes
The outdoor condenser unit sits on a concrete pad outside the house and holds the compressor and condenser coil. Inside, the air handler or furnace-mounted evaporator coil lives in a utility closet, attic, or basement and is the indoor half of the system. Together these two units are what a Central AC installation puts in place.
The refrigerant line set runs between the two units, connecting them through a small penetration in the wall, and the thermostat mounts on an interior wall where it reads the home's temperature and tells the system when to run. A condensate drain line also runs from the indoor coil to a floor drain or outside, carrying away the moisture the coil pulls from the air.
The drawing shows a typical layout, and a licensed contractor determines exactly how each piece fits your house.
Get matched in Uvalde CountyUvalde County by the Numbers
60 severe weather events were recorded in Uvalde 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 Uvalde County, Texas were built in 1983 or earlier (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesUvalde County, Texas holds 10,095 housing units (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOwners occupy 70.6% of the occupied homes in Uvalde County, Texas (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesRules & Standards for Central AC Installation in Uvalde 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.
Licensing Rules for HVAC Work in Uvalde 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 in Uvalde County
Outdoor conditions determine how hard an AC system has to work and how long it lasts. Sizing and installing equipment for this area means accounting for the weather it will run against.
60 severe weather events, 2015–2024. Source: NOAA National Centers for Environmental Information, Storm Events Database.