Heat Pump Installation in Gillette

Serving Gillette and every community across Campbell County.

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Step 1 of 3: Equipment
Gable end of a gray shingled and board-sided house with two white-framed windows, its roof covered in snow, with snow-laden conifers behind it and falling snowflakes.

Sizing a heat pump for Campbell County starts with one problem other climates soften: the equipment's heating output drops as outdoor temperatures fall, and it falls hardest exactly when the house needs the most from it. Homes in Campbell County, WY run heat about ten months a year, from September through June. A contractor has to establish what temperatures the unit will face at the coldest stretch of that season, then match rated capacity to actual demand at that floor, not at a mild-day average. Back-up heat is part of that math, not an afterthought. An installer who skips the low-end calculation leaves the homeowner with a system that works well in October and struggles in February.

NOAA National Centers for Environmental Information, nClimDiv county and statewide normals, 1991-2020.
Unfinished basement with exposed wood joists, galvanized rectangular and round ductwork, concrete block walls, and a large stack of split firewood on the concrete floor.

Ductwork is where a heat pump installation in Campbell County either comes together or stalls. Half the homes in Campbell County, Wyoming were built in 1991 or earlier (2020-2024 ACS 5-year). Ducting and air-handling equipment installed for the systems that came with those homes was not sized for what a heat pump moves through it, and a contractor putting in a new unit has to measure what is already in the walls before pricing anything else. Electrical service is the second check: panels in that generation of housing were specified for a smaller draw, and the new equipment runs on different load requirements entirely. What a contractor finds in both places shapes the scope of the job more than the heat pump itself does.

U.S. Census Bureau, 2020-2024 American Community Survey 5-Year Estimates

What a Heat Pump Installation Puts in Your Home

Isometric line illustration of a cutaway single-story house showing interior rooms with ducted air distribution, an indoor air handler, furniture, and an outdoor condenser unit connected by lines outside the wall.

The outdoor unit is the piece most homeowners notice first. It sits on a concrete pad or wall bracket outside the house and holds the compressor and one set of coils. Inside, an air handler mounts in a utility space, closet, or attic and circulates conditioned air through the home.

A refrigerant line set runs between the two units, carrying the working fluid that ties the outdoor and indoor sides together. A thermostat goes on an interior wall and gives the homeowner control over the whole system. Some installations also include a supplemental electric resistance element inside the air handler for the coldest days.

The drawing shows the general layout of a heat pump system, and a licensed contractor determines exactly what applies to your house.

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Campbell County, Wyoming, by the numbers

472

472 severe weather events were recorded in Campbell 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.
1991

Half the homes in Campbell County, Wyoming were built in 1991 or earlier (2020-2024 ACS 5-year).

U.S. Census Bureau, 2020-2024 American Community Survey 5-Year Estimates
20,023

Campbell County, Wyoming holds 20,023 housing units (2020-2024 ACS 5-year).

U.S. Census Bureau, 2020-2024 American Community Survey 5-Year Estimates
77.7%

Owners occupy 77.7% of the occupied homes in Campbell County, Wyoming (2020-2024 ACS 5-year).

U.S. Census Bureau, 2020-2024 American Community Survey 5-Year Estimates

Severe Weather Events in Campbell County

Weather shapes how hard a heat pump has to work and for how long. Understanding the local pattern is part of sizing and selecting equipment that holds up under what this area actually delivers.

Severe weather events by county — Campbell County
1007550250
2015201620172018201920202021202220232024
83

472 severe weather events, 2015–2024. Source: NOAA National Centers for Environmental Information, Storm Events Database.