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Sizing a central AC system for a home here starts with what the house actually needs, not with a worst-case weather assumption. 64 severe weather events were recorded in Hancock County, West Virginia between 2015 and 2024. At that rate, severe weather is a periodic fact of life in the county, not a constant pressure that dominates how a system is specified. A contractor quoting a new install will spend more attention on duct layout, load calculation, and the condition of existing infrastructure than on bracing for a climate that pushes equipment hard year-round. The weather record is real, but it does not change the fundamentals of a correct install.
Ductwork laid in for a furnace was sized and routed for heat distribution, and a central AC system asks something different of it: a contractor assessing an installation here has to determine whether the existing runs, returns, and trunk lines can carry the cooling load before anything else gets priced. Half the homes in Hancock County, West Virginia were built in 1959 or earlier (2020-2024 ACS 5-year). That spread of older stock means a meaningful share of installations in this county turn on what is already in the walls and the ceiling, not on which unit gets ordered. Electrical service is the second check, since equipment draws that were never anticipated when the panel was installed can require an upgrade before work begins.
What Gets Installed With a New Central AC
The outdoor condenser unit sits outside the house, usually on a concrete pad at ground level, and it holds the compressor and the condenser coil. Inside, the air handler or furnace-based coil cabinet occupies a closet, utility room, or attic space and pairs with the outdoor unit to move conditioned air through the home.
The refrigerant line set runs between the two units through an exterior wall, carrying refrigerant back and forth as the system operates. A thermostat mounts on an interior wall where the homeowner controls the whole system, and a condensate drain line routes moisture pulled from the air to a nearby drain.
The drawing shows the general layout of a central AC system, and a licensed contractor determines exactly how each piece fits into your specific home.
Find a contractor in Hancock CountyHancock County, West Virginia, by the numbers
64 severe weather events were recorded in Hancock County, West Virginia 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 Hancock County, West Virginia were built in 1959 or earlier (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesHancock County, West Virginia holds 14,194 housing units (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOwners occupy 74.5% of the occupied homes in Hancock County, West Virginia (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesRules & Standards for Central AC Installation in Hancock County, West Virginia9 sourced rules and standards
What the installation actually looks like
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 HVAC Work in Hancock County, West Virginia
West Virginia requires a licence from the Commissioner of Labor to perform, or offer to perform, work on a heating, ventilating and cooling system.
Severe Weather in Hancock County
Weather puts real demands on cooling equipment, and those demands vary by location. How hard a system works over its life is shaped by what the local climate throws at it, which is why weather history belongs on a page about installing central AC.
64 severe weather events, 2015–2024. Source: NOAA National Centers for Environmental Information, Storm Events Database.