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A contractor quoting a central AC installation in Howard County has to work out what the system will actually be asked to carry before they can spec the equipment. 144 severe weather events were recorded in Howard County, Texas between 2015 and 2024. At that rate of events, a unit sized by square footage alone will be undersized for what the climate demands. Duct layout, line set routing, and equipment capacity are all decided by local conditions, and the install that skips that step leaves a system running harder than it was built to.
Ductwork laid for the cooling loads of an earlier era rarely moves air the way a new central AC system needs it to. Half the homes in Howard County, Texas were built in 1966 or earlier (2020-2024 ACS 5-year). A contractor installing a new unit in stock like this has to assess what the existing duct runs can actually handle before the equipment question is settled. Gaps in capacity, undersized returns, and runs that were never designed for modern refrigerant-based systems can all shift the scope of the job before the first line set is run.
What Gets Installed With a New Central AC
The indoor air handler is the piece most homeowners see first, mounted in a closet, attic, or utility room. It houses the evaporator coil and the blower that pulls air from the house, conditions it, and pushes it back through the supply registers. Outside, the condenser unit sits on a concrete pad, releasing heat to the open air.
A copper refrigerant line set runs between those two units, connecting the indoor and outdoor sides of the system. The thermostat goes on an interior wall where it reads the temperature of the living space and tells the system when to run.
The drawing shows the general layout of these components, and a licensed contractor determines what applies to this particular house.
Get matched in Howard CountyHoward County, by the numbers
144 severe weather events were recorded in Howard 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 Howard County, Texas were built in 1966 or earlier (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesHoward County, Texas holds 14,048 housing units (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOwners occupy 69.5% of the occupied homes in Howard County, Texas (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesCodes & Standards Governing Central AC Installation in Howard County, Texas9 sourced rules and standards
What the installation looks like in Howard County
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 Howard 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 Howard County
Extreme weather puts real stress on cooling equipment, shortening service life and raising the demand on every component from the compressor outward. How hard a system has to work is a local question, and the record below shows what Howard County weather has looked like in recent years.
144 severe weather events, 2015–2024. Source: NOAA National Centers for Environmental Information, Storm Events Database.