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Sizing a heat pump for a Llano County home starts with what the climate actually demands, and that picture is neither dramatic nor negligible. 77 severe weather events were recorded in Llano County, Texas between 2015 and 2024. At roughly that rate, severe weather is an event in this county, not a steady operating condition. A contractor quoting or specifying equipment here works from load calculations shaped by local heat and humidity, not from a storm tally. When a system underperforms after install, the culprit is almost always duct layout, refrigerant charge, or equipment selection rather than weather-driven wear.
Ductwork laid down before heat pumps were a common residential choice was designed around different airflow volumes and static pressure ranges than a modern unit requires. Half the homes in Llano County, Texas were built in 1990 or earlier (2020-2024 ACS 5-year). A contractor quoting a heat pump installation in this county measures the existing duct system before pricing anything else, because what those ducts can actually carry determines whether the new equipment performs as rated or runs short of its numbers from day one. The electrical service gets the same look: a panel from that era may already be running close to capacity, and a heat pump's load has to fit what the service can deliver.
What Gets Installed With a New Heat Pump
The outdoor unit is the piece most homeowners notice first. It sits on a pad beside the house and holds the compressor and the outdoor coil, which together do the heavy lifting of moving heat between the refrigerant and the outside air. Inside, the air handler mounts in a utility closet, attic, or basement and pushes conditioned air through the home.
A refrigerant line set runs between the two units, connecting the outdoor pad to the air handler and carrying refrigerant back and forth. A thermostat mounts on an interior wall and gives the homeowner control over when and how the system runs.
The drawing shows the general layout of a heat pump system, and a licensed contractor determines exactly what applies to this house.
Get matched in Llano CountyLlano County, by the numbers
77 severe weather events were recorded in Llano 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 Llano County, Texas were built in 1990 or earlier (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesLlano County, Texas holds 15,788 housing units (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOwners occupy 76.5% of the occupied homes in Llano County, Texas (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesHeat Pump Installation Rules for Llano County, Texas1 codes, standards, and licensing rules
Licensing and Legal Requirements in Llano 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 Llano County
Weather in this part of Texas puts real demands on heating and cooling equipment, and those demands shape what a heat pump has to handle year after year. Sizing and installing the right system here is a local decision, and the weather record is part of the picture.
77 severe weather events, 2015–2024. Source: NOAA National Centers for Environmental Information, Storm Events Database.