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Sizing a heat pump for Union Parish means accounting for what the heating side of the system is actually asked to carry. Homes in Union Parish, LA run heat about five months a year, from November through March. The compressor and reversing valve cycle throughout that period, and a unit that leaves the install undersized or undercharged on refrigerant loses capacity on the coldest nights, which is precisely when outdoor temperatures push a heat pump toward its limits. A contractor has to run a load calculation against this county's winter conditions before settling on equipment, and back-up resistance heat has to be sized as part of that same quote, not treated as an optional add-on.
Ductwork sized and routed for an older central system draws the first look from any contractor quoting a heat pump install here. Half the homes in Union Parish, Louisiana were built in 1987 or earlier (2020-2024 ACS 5-year). That means a meaningful share of houses in this parish carry supply runs, return sizing, and trunk layouts that were never designed around the static pressure a heat pump moves. The electrical service gets checked too, but duct geometry is the variable that most often changes the scope and the price before the new unit is ever ordered.
What Gets Installed With a New Heat Pump
The outdoor unit sits on a pad outside the house and holds the compressor and the condenser coil, which together move heat between the refrigerant and the outside air. Inside, the air handler mounts in a utility space, closet, or attic and pushes conditioned air through the home. These two units are the core of what a contractor sets in place.
A refrigerant line set runs between the outdoor unit and the air handler, carrying refrigerant back and forth through insulated copper tubing. A thermostat goes on an interior wall and gives the homeowner control over the whole system. A condensate drain line also runs from the air handler to carry away moisture that collects during operation.
The drawing shows a typical layout, and a licensed contractor determines exactly what applies to your house.
Get matched in Union ParishUnion Parish, Louisiana, by the numbers
174 severe weather events were recorded in Union Parish, Louisiana 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 Union Parish, Louisiana were built in 1987 or earlier (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesUnion Parish, Louisiana holds 10,431 housing units (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOwners occupy 77.8% of the occupied homes in Union Parish, Louisiana (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesCodes & Standards Governing Heat Pump Installation in Union Parish, Louisiana1 sourced rules and standards
Licensing Rules for HVAC Work in Union Parish, Louisiana
Louisiana requires an active state contractor licence: it is unlawful to engage or continue in the business of contracting, or to act as a contractor, without one.
Severe Weather Events in Union Parish
Weather patterns in Union Parish put real demands on heating and cooling equipment year-round. A heat pump sized and installed for local conditions handles those demands better than one spec'd without them.
174 severe weather events, 2015–2024. Source: NOAA National Centers for Environmental Information, Storm Events Database.