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Sizing a heat pump for this area starts with what the local climate actually demands, and that question is answered by the record, not by a catalog default. 39 severe weather events were recorded in Atascosa County, Texas between 2015 and 2024. At that rate, severe weather is an event in this county, not a standing condition, which means a system that underperforms here is almost certainly carrying the cost of how it was sized and installed, not what the sky threw at it. A contractor quoting a new install uses that distinction to spec refrigerant line lengths, airflow capacity, and unit placement for what this climate genuinely asks, rather than padding the design around a weather threat that the record does not support.
Ductwork sized for older equipment does not automatically carry what a heat pump needs. A contractor quoting an installation here will pull access and measure what is actually there before committing to a scope, because the layout and capacity of existing ducts in this county's housing stock is where jobs diverge. Half the homes in Atascosa County, Texas were built in 1993 or earlier (2020-2024 ACS 5-year). That puts a contractor's first real question at the duct runs and returns, not at the unit on the pad. The electrical service is the second question, since a heat pump's draw has to match what the panel can deliver. Both get priced before the equipment does.
What a Heat Pump Installation Puts in Your Home
The outdoor unit sits on a pad beside the house and holds the compressor and the coil that exchange heat with the outside air. The indoor air handler mounts inside, usually in a closet, attic, or utility room, and moves conditioned air through the home. Together these two units carry the full load of heating and cooling.
A refrigerant line set runs between the two units, connecting the outdoor pad to the indoor handler through the wall or floor. A thermostat goes on an interior wall where it can read the home's air temperature and tell the system when to run.
The drawing shows a representative layout, and a licensed contractor determines exactly what goes where in your specific home.
Get matched in Atascosa CountyAtascosa County, by the numbers
39 severe weather events were recorded in Atascosa 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 Atascosa County, Texas were built in 1993 or earlier (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesAtascosa County, Texas holds 19,214 housing units (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOwners occupy 77.4% of the occupied homes in Atascosa County, Texas (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesHeat Pump Installation Rules on the Books for Atascosa County, Texas1 sourced codes and standards
Licensing and Legal Requirements in Atascosa 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 History in Atascosa County
Atascosa County weather puts real demands on heating and cooling equipment year after year. A heat pump sized and installed for local conditions handles those demands better than one spec'd for somewhere else.
39 severe weather events, 2015–2024. Source: NOAA National Centers for Environmental Information, Storm Events Database.