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Sizing a heat pump for Deschutes County is not a catalog exercise. Homes in Deschutes County, OR run heat about ten months a year, from September through June. A heat pump loses capacity as outdoor temperatures fall, so the coldest weeks are exactly when a unit that was quoted too small or installed without a proper load calculation falls short of what the house needs. The installer has to establish the heating load, the insulation envelope, and the backup heat threshold before anything else on the quote can be trusted.
Ductwork sized for a furnace moves air differently than a heat pump needs it to. Half the homes in Deschutes County, Oregon were built in 1998 or earlier (2020-2024 ACS 5-year). That means a contractor installing a heat pump in much of this county is working out whether the existing duct system delivers enough airflow at the right velocity, not simply swapping equipment. Where it falls short, the fix is in the ducts, not the unit. The electrical service in houses of this vintage is a separate question a contractor checks before quoting, since heat pump loads can exceed what an older panel was wired to carry.
What Gets Installed With a New Heat Pump
The outdoor unit is the piece most homeowners recognize first. It sits on a pad beside the house and holds the compressor and the outdoor coil, which together do the core work of moving heat between outside air and your home. The indoor air handler mounts inside, usually in a utility space, closet, or attic, and circulates conditioned air through the home.
A refrigerant line set runs between the two units, carrying refrigerant back and forth through insulated copper tubing. A thermostat goes on an interior wall where it reads the temperature and tells the system when to run. Both pieces are part of every standard heat pump installation.
The drawing shows a typical layout, and a licensed contractor determines exactly how each component applies to your house.
Get matched in Deschutes CountyDeschutes County, by the numbers
135 severe weather events were recorded in Deschutes County, Oregon 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 Deschutes County, Oregon were built in 1998 or earlier (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesDeschutes County, Oregon holds 99,297 housing units (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOwners occupy 70.0% of the occupied homes in Deschutes County, Oregon (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesHeat Pump Installation Rules & Standards on Record for Deschutes County, Oregon2 sourced rules and standards
Licensing and Legal Requirements in Deschutes County, Oregon
Oregon’s contractor licence does not reach casual, minor or inconsequential work on one structure where the person’s contracts total less than $1,000 — and the exemption is unavailable to anyone who advertises or signs themselves as a contractor, at any price.
Oregon requires a current Construction Contractors Board licence, with the right endorsement, to undertake, offer to undertake or bid construction work.
Weather Events in Deschutes County
Heating and cooling loads are shaped by what the climate actually does, not what it averages out to. A heat pump sized and installed for the real conditions here works harder, recovers faster, and lasts longer than one spec'd for somewhere else.
135 severe weather events, 2015–2024. Source: NOAA National Centers for Environmental Information, Storm Events Database.