Tell us about the job
Takes about a minute. No obligation.
Sizing a heat pump for Union County means working out where that system loses ground against the cold, not just whether it can move heat at mild temperatures. Homes in Union County, OR run heat about ten months a year, from September through June. As outdoor air drops toward freezing and below, a heat pump's capacity falls off, and a unit that looks adequate on paper may spend the coldest weeks leaning on its backup resistance heat. A contractor has to run a proper load calculation, account for the house envelope, and set the balance point correctly before the equipment is ordered. Get that wrong and the auxiliary strips carry the load the refrigerant circuit was supposed to handle.
Ductwork in a house carries the invisible history of what that house was originally built to run. Half the homes in Union County, Oregon were built in 1973 or earlier (2020-2024 ACS 5-year). A heat pump moves a higher volume of air at lower temperature differentials than the systems those ducts were designed around, so what a contractor finds in the walls and crawlspaces matters more than what they pick off a spec sheet. Routing, trunk sizing, and return-air capacity all get checked before the new equipment is even priced. Electrical service gets the same look, since the panel in a house of that vintage was sized for a different load than a modern heat pump draws.
What Gets Installed With a New Heat Pump
The outdoor unit sits on a pad beside the house and holds the compressor and the condenser coil. It is the largest piece a homeowner sees once the job is done. Inside the house, the air handler mounts in a utility closet, basement, or attic and pushes conditioned air through the home.
A refrigerant line set runs between the two units, connecting the outdoor and indoor sides through the wall or floor. A thermostat goes on an interior wall where it reads the living space and signals the system to run.
The drawing shows the general layout of a heat pump system, and a licensed contractor determines what fits the specifics of your house.
Get matched in Union CountyUnion County, Oregon, by the numbers
150 severe weather events were recorded in Union 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 Union County, Oregon were built in 1973 or earlier (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesUnion County, Oregon holds 11,829 housing units (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOwners occupy 65.5% of the occupied homes in Union County, Oregon (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesRules & Standards Governing Heat Pump Installation in Union County, Oregon2 sourced rules and standards
Licensing and Legal Requirements in Union 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.
Severe Weather Events in Union County
Weather in Union County puts a measurable load on heating and cooling equipment, and that load shapes what a heat pump here needs to handle year after year. Sizing and installing equipment without accounting for local conditions is how systems end up working harder than they should.
150 severe weather events, 2015–2024. Source: NOAA National Centers for Environmental Information, Storm Events Database.