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Sizing a heat pump for a house in Bexar County starts with a climate that pushes equipment hard on a regular basis. 387 severe weather events were recorded in Bexar County, Texas between 2015 and 2024. At that rate, severe weather is part of the normal operating life of every system in the county, and a contractor who ignores it will undersize the unit or spec components that wear faster than they should. A proper install here accounts for that load from the start, in the equipment selected and in how it is set up to run.
Existing ductwork shapes a heat pump installation more than the unit itself does, and in Bexar County that ductwork is old enough to make it the first thing a contractor has to assess. Half the homes in Bexar County, Texas were built in 1990 or earlier (2020-2024 ACS 5-year). Duct systems in houses of that vintage were laid out for equipment with different airflow characteristics than a heat pump runs on, and a contractor quoting the job has to open registers, check trunk dimensions, and confirm the panel can carry the new load before the equipment selection means anything. What the house already contains sets the scope.
What a Heat Pump Installation Puts in Your Home
The outdoor unit sits on a pad beside the house and holds the compressor and condenser coil, which together move heat between the refrigerant and the outside air. Inside, the air handler mounts in a closet, attic, or utility space and pushes conditioned air through your home. Both units are what a contractor sets in place during an installation.
A refrigerant line set runs between the two units, connecting the outdoor and indoor sides so the system works as one. A thermostat goes on an interior wall where it reads the temperature and tells the system when to run. An electrical disconnect box sits near the outdoor unit as a safety shutoff.
The drawing shows the general layout of a heat pump system, and a licensed contractor determines exactly how each piece fits the conditions in your house.
Get matched in Bexar CountyBexar County by the numbers
387 severe weather events were recorded in Bexar 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 Bexar County, Texas were built in 1990 or earlier (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesBexar County, Texas holds 820,780 housing units (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOwners occupy 58.8% of the occupied homes in Bexar County, Texas (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesHeat Pump Installation Rules for Bexar County, Texas1 codes & standards
Licensing and Legal Requirements in Bexar 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 Bexar County
Bexar County weather puts real demand on heating and cooling equipment year-round. A heat pump sized and installed for local conditions handles that workload better than one spec'd to a national average.
387 severe weather events, 2015–2024. Source: NOAA National Centers for Environmental Information, Storm Events Database.