How Washington conditions shape HVAC planning
Washington planning must account for marine moisture, mountain cold, summer heat events and wildfire smoke. Heat-pump efficiency, moisture control, ventilation, salt exposure near the coast and filtration during smoke events deserve attention.
Climate describes likely loads; it does not size equipment. Ask for property-specific load calculations, duct or distribution findings, design temperatures and documented startup measurements when they apply.
Research source
Review the peer-reviewed NOAA Washington State Climate Summary for observed climate trends and state-specific extreme-weather context. Degree-day and design-temperature decisions should use the serving location and current code documents, not a statewide average.
