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A contractor quoting a heat pump install in Gwinnett County has to account for what the equipment will spend its life running against, and the weather record here is not a minor variable. 185 severe weather events were recorded in Gwinnett County, Georgia between 2015 and 2024. At that rate, severe weather is a routine pressure on cooling and heating loads, not a seasonal footnote, which is why equipment sizing and refrigerant line placement get decided by local conditions rather than by whatever the manual recommends for a generic climate. A system undersized for what this area actually delivers will be working at its ceiling before the first summer ends.
Ductwork laid into a house at the median year of this county's housing stock was sized and routed for a different kind of system than the one a heat pump installer is bringing in. Half the homes in Gwinnett County, Georgia were built in 1996 or earlier (2020-2024 ACS 5-year). That gap between original design and current equipment is where installation jobs get complicated: the ducts may run the wrong diameters for the airflow a heat pump needs, and the electrical service may not be where a modern heat pump expects it. A contractor pricing a heat pump installation here checks both before the unit is ever ordered.
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 main coil. The indoor air handler mounts inside, usually in a closet, attic, or utility room, and it circulates conditioned air through the home. These two units are the core of what a contractor brings to the job.
A refrigerant line set runs between the outdoor and indoor units, passing through the wall to connect them. A thermostat mounts on an interior wall and gives the homeowner control over the system. The disconnect box goes on the exterior wall near the outdoor unit and gives the contractor a safe shutoff point.
The drawing shows a typical layout, and a licensed contractor determines exactly how each piece fits your house and its existing setup.
Get matched in Gwinnett CountyGwinnett County, by the numbers
185 severe weather events were recorded in Gwinnett County, Georgia 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 Gwinnett County, Georgia were built in 1996 or earlier (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesGwinnett County, Georgia holds 340,962 housing units (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOwners occupy 66.3% of the occupied homes in Gwinnett County, Georgia (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesSevere Weather Events in Gwinnett County
Weather puts a measurable load on heating and cooling equipment, and that load varies by location. How hard a heat pump has to work over its life is partly a function of what the local climate throws at it, which is why this data belongs on a page about installation in this area.
185 severe weather events, 2015–2024. Source: NOAA National Centers for Environmental Information, Storm Events Database.