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Sizing a heat pump for Pitkin County means solving a problem that does not exist at lower elevations: outdoor temperatures drop far enough, far often enough, that a unit's heating capacity can fall short of what the house needs at the worst hour of the year. Homes in Pitkin County, CO run heat in every month of the year. A contractor calculating load here has to establish both what the heat pump can deliver at the design low temperature and what the backup heat strip will be asked to carry when it cannot. A system that leans too hard on resistance backup through a long winter costs far more to run than the original quote suggested.
Ductwork sized for a different generation of equipment is what a contractor opens a heat pump job around in this county. Half the homes in Pitkin County, Colorado were built in 1985 or earlier (2020-2024 ACS 5-year). That means the ducts already in place were built to move air for something with a different static pressure profile than a modern heat pump draws, and a contractor has to assess them before the new unit can be correctly matched and placed. Electrical service gets the same look: panels in stock this age were not laid out with a heat pump's load in mind, and whether the existing service can carry it is a question the site visit answers.
What Gets Installed With a New Heat Pump
The outdoor unit sits on a pad beside the house and holds the compressor and the refrigerant coil that do the core work of the system. Inside, the air handler mounts in a utility space, closet, or attic and pushes conditioned air through the home. These two units are what a homeowner is buying when they buy a heat pump.
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. Both pieces are part of a complete installation.
The drawing shows a typical layout, and a licensed contractor determines what applies to this particular house.
Get matched in Pitkin CountyPitkin County, by the numbers
84 severe weather events were recorded in Pitkin County, Colorado 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 Pitkin County, Colorado were built in 1985 or earlier (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesPitkin County, Colorado holds 13,412 housing units (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOwners occupy 62.8% of the occupied homes in Pitkin County, Colorado (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesSevere Weather Events in Pitkin County
Pitkin County's climate puts real demands on heating and cooling equipment, and those demands show up in the local weather record. A heat pump sized and installed for this area has to hold up to what the weather here actually does, not what it does somewhere else.
84 severe weather events, 2015–2024. Source: NOAA National Centers for Environmental Information, Storm Events Database.