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A contractor quoting a heat pump installation in Fremont County has to work out, before anything else, where outdoor temperatures bottom out and how far below the unit's rated capacity that drives it. Homes in Fremont County, WY run heat about ten months a year, from September through June. Through the coldest part of that run, a heat pump loses capacity as the air temperature falls, so a unit sized on summer math will hand most of its work to the backup resistance strip for months at a stretch. The contractor has to size against those cold-weather conditions specifically, not against the milder shoulders of the season, or the homeowner ends up paying to run resistance heat far more than the installation ever justified.
Ductwork laid in for a gas furnace moves hot air fast and in short bursts. A heat pump moves air continuously at lower temperatures, and it needs a duct system sized to handle that flow without the static pressure climbing high enough to strain the equipment. Half the homes in Fremont County, Wyoming were built in 1978 or earlier (2020-2024 ACS 5-year). That concentration of older stock means a contractor who quotes a heat pump installation here measures the existing duct runs before anything else, because what those runs can carry is what sets the scope of the job.
What Gets Installed With a New Heat Pump
The outdoor unit is the piece a homeowner sees first, sitting on a concrete pad or wall bracket outside the house. Inside, an air handler mounts in a utility closet, basement, or attic and pushes conditioned air through the home. Together these two units are what a heat pump installation puts in place.
A refrigerant line set runs between the outdoor unit and the air handler, connecting the two through a small penetration in the wall. A thermostat mounts on an interior wall and gives the homeowner control over the whole system. A condensate drain line runs from the air handler to carry away moisture the system pulls from the air.
The drawing shows a typical layout, and a licensed contractor determines exactly how each component is positioned and routed for this house.
Find a contractor in Fremont CountyFremont County by the numbers
738 severe weather events were recorded in Fremont County, Wyoming 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 Fremont County, Wyoming were built in 1978 or earlier (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesFremont County, Wyoming holds 17,469 housing units (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOwners occupy 70.1% of the occupied homes in Fremont County, Wyoming (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesSevere Weather Events in Fremont County
Weather in Fremont County puts real demands on heating and cooling equipment, and those demands shape what a heat pump here has to handle across its working life. Sizing and installation decisions that make sense in a mild climate may fall short in this one.
738 severe weather events, 2015–2024. Source: NOAA National Centers for Environmental Information, Storm Events Database.