Heating carries the load in Spokane
Spokane winters are long and snowy, and heating is the main job of most HVAC systems here. A furnace or heat pump that fails in January is an emergency, so preventive work in the fall pays off. A fall visit should cover the filter, ignition or defrost operation, blower, safety controls and venting, plus a carbon monoxide test on gas equipment.
Many Spokane households keep a backup plan for heating: a dual-fuel system, a heat pump with electric backup strips, or a secondary heat source. If you are replacing equipment, ask the contractor what happens on the coldest nights of the year and what you would do if the primary system failed during a cold snap.
Heat pumps in the Inland Northwest
Cold-climate heat pumps have made heat pumps a practical choice in Spokane, but performance at low temperatures varies widely between models. Ask any contractor quoting a heat pump to show the unit's heating capacity at low outdoor temperatures and how it was matched to your home's heat loss. Place the outdoor unit on a stand above typical snow depth, away from roof drip lines, and where defrost meltwater can drain without freezing into a sheet of ice on a walkway.
Snow and venting
After heavy snow, clear the area around the outdoor unit and check high-efficiency furnace intake and exhaust pipes. Snow drifts or ice can block them, shutting the furnace off. Ice dams and icicles above an outdoor unit can also damage the fan and coil when they fall, so a small protective hood or relocating the unit may be worth discussing.
Adding cooling
Spokane summers are generally shorter and milder than California's, but hot spells do happen, and many homes now add central air or ductless units. When you add cooling, ask whether the existing ducts are sized for air conditioning, and consider a higher-efficiency filter if your system can handle the extra airflow resistance.
Efficiency standards and water
Washington falls under the Department of Energy's North region, which sets the minimum efficiency for new air conditioners; heat pumps must meet the national heat pump minimum. If you're installing a high-efficiency furnace or air conditioner with a condensate drain, make sure the drain is routed so it can't freeze. Spokane's drinking water comes from the Spokane Valley–Rathdrum Prairie Aquifer, a sole source aquifer, so equipment drains and any chemical cleaners used during service should be disposed of properly rather than poured onto the ground.
Ask about the plan for the coldest night
Before you sign a quote, ask the contractor to walk you through how the system will behave on the coldest night of the year: how much heat the equipment delivers at that temperature, when backup heat starts, and how long it would take them to respond if the system failed. A clear answer is a good sign that the system was designed for Spokane rather than borrowed from a milder climate.