Seattle heat pumps: choose the outdoor location early

Questions covered in this guide

Local considerations

Seattle heat-pump planning should preserve the outdoor-unit sketch alongside review correspondence. Comparing two locations before ordering equipment gives the homeowner a clear record of what each installer has actually evaluated.

A location alternative should be priced with its installation scope and review responsibility. This turns an untestable quiet-equipment sales claim into a documented discussion about the particular placement.

Explore the national planning guide

Make the outdoor location part of the bid

Seattle requires a refrigeration permit for a system assembled on site. SDCI also offers a pre-installation noise review after that permit is issued. Ask the installer to explain the proposed review route and location before treating equipment selection as complete. Confirm that Seattle is the permitting authority for your address; a Seattle mailing address by itself is not enough.

Prepare a location comparison sheet

Ask for a sketch showing the proposed unit and an alternative location. Label nearby property lines, your own bedrooms, neighboring buildings and the route for installation access. Use information you can observe safely; have the contractor verify boundaries, dimensions and technical requirements. For each option, leave spaces for the equipment model, mounting proposal, installation work and questions awaiting confirmation.

Compare the evidence behind quiet-operation claims

Request the manufacturer's sound information for the proposed model and the installer's explanation of how it applies to the actual location. A description such as quiet does not tell you what was assessed. Ask who will prepare any requested noise-review information and who will handle a required change to the proposed placement. Record the answer next to the installation scope so the responsibility does not disappear between sales and installation.

Carry the selected location into the contract

When the location is settled, have the proposal identify it on the same sketch. Ask for a written update if equipment or placement changes. Keep review correspondence, the final model list and completion documents together. The HVAC calculator supplies a national planning reference; it does not model noise at your property line or price location-specific electrical, mounting or routing work. Use the location sheet to obtain complete alternatives and understand why two bids for similar equipment may cover different projects.

Sources and supported claims

Seattle requires a refrigeration permit when a refrigeration system is assembled on site.
Source ↗ · place · Checked 2026-10-12

SDCI offers pre-installation noise review once a refrigeration permit has been issued.
Source ↗ · place · Checked 2026-10-12