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Sizing a mini-split here starts with what the equipment will actually face. 161 severe weather events were recorded in Hemphill County, Texas between 2015 and 2024. At that rate, severe weather is a regular feature of the operating environment, and a contractor who ignores it when calculating load capacity is setting a system up to run hard at the edge of its range every season it stands. Refrigerant line placement, mounting height, and unit capacity all get decided with that pressure in mind.
Wiring put in for a different era of equipment is what a contractor runs into when quoting a mini-split installation in much of Hemphill County. Half the homes in Hemphill County, Texas were built in 1975 or earlier (2020-2024 ACS 5-year). That age of construction predates the load profiles modern mini-split systems draw, which means the panel and the branch circuits get looked at before the equipment gets priced. A house may be structurally sound and well-maintained and still carry electrical service that was never sized for what is going in. That gap between the original wiring and the new draw is where the real scope of the job lives.
The Parts of a Mini-Split System and What HVAC Installation Involves
The indoor air handler mounts high on a wall inside the room being served. It draws in room air, conditions it, and delivers it back into the space. The outdoor condenser unit sits on the ground or a pad outside the house and holds the compressor and the components that shed heat to the open air.
A refrigerant line set runs between the two units through a small penetration in the wall, carrying refrigerant back and forth. A condensate drain line runs from the indoor unit to the outside, removing moisture pulled from the air. A dedicated electrical circuit feeds the outdoor unit, and a control wire connects the two units so they operate as one system.
The drawing shows a typical layout, and a licensed contractor determines exactly what applies to your house and how each piece gets positioned and connected.
Find a contractor in Hemphill CountyHemphill County, by the Numbers
161 severe weather events were recorded in Hemphill 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 Hemphill County, Texas were built in 1975 or earlier (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesHemphill County, Texas holds 1,763 housing units (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOwners occupy 71.1% of the occupied homes in Hemphill County, Texas (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesCodes & Standards Governing Mini-Split Installation in Hemphill County, Texas1 sourced rules and standards
Licensing Rules for Hemphill 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 Hemphill County
Weather puts a load on heating and cooling equipment, and that load varies by where you live. A mini-split sized and installed for local conditions will run differently than one specified without them.
161 severe weather events, 2015–2024. Source: NOAA National Centers for Environmental Information, Storm Events Database.