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Sizing a heat pump for a house in Montgomery County starts with the house. 66 severe weather events were recorded in Montgomery County, Alabama between 2015 and 2024. At that rate, severe weather is an occasional presence rather than a constant pressure on equipment here, so a contractor cannot point to the local climate as the main driver of equipment specifications. What shapes the right install is the structure itself: insulation, orientation, square footage, and duct condition. A quote built around local weather conditions without first surveying those details will miss the load the specific house actually puts on a system.
Existing ductwork is what a heat pump installation turns on in this county. Half the homes in Montgomery County, Alabama were built in 1979 or earlier (2020-2024 ACS 5-year). Ducts laid down for the systems that were standard when those houses were built were sized and routed for different equipment, and a new heat pump has to push conditioned air through whatever is already there. If the runs are too narrow, too leaky, or poorly branched, the new unit underperforms regardless of its specs. Electrical service is the second check: the panel has to support the load the heat pump draws, and panels in housing of that vintage often do not without an upgrade.
What Gets Installed With a New Heat Pump
The outdoor unit sits on a pad outside the house and holds the compressor and one set of coils. It is the largest piece of the system and the one most homeowners recognize. Inside, the air handler mounts in a utility space, closet, or attic and moves conditioned air through the home.
A refrigerant line set runs between the two units, connecting the outdoor pad to the air handler. A thermostat goes on an interior wall where it reads the temperature of the living space and tells the system when to run. Each of these pieces is part of what a contractor brings to the job.
The drawing shows a typical layout, and a licensed contractor determines exactly what applies to your house.
Get matched in Montgomery CountyMontgomery County, by the numbers
66 severe weather events were recorded in Montgomery County, Alabama 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 Montgomery County, Alabama were built in 1979 or earlier (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesMontgomery County, Alabama holds 106,121 housing units (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOwners occupy 57.8% of the occupied homes in Montgomery County, Alabama (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesRules & Standards for Heat Pump Installation in Montgomery County, Alabama1 sourced rules and standards
Licensing and Legal Requirements in Montgomery County, Alabama
Alabama requires state certification to do heating, air conditioning and refrigeration contracting: nobody may advertise, bid, pull permits or do the work unless the person in responsible charge is a certified contractor.
Severe Weather Events in Montgomery County
Heat pumps in Montgomery County work against whatever the climate puts on them, and that workload is set by local conditions, not averages from somewhere else. A contractor sizing or installing equipment here accounts for the weather record this area actually carries.
66 severe weather events, 2015–2024. Source: NOAA National Centers for Environmental Information, Storm Events Database.