Heat pump before snow forecast checklist in Greater Vancouver

Heat pumps keep heating right through cold weather, but snow and ice in the forecast call for a little prep. Because the outdoor unit pulls heat from the air, keeping it clear and well-positioned matters most when winter weather hits Greater Vancouver.

Get the outdoor unit ready

Unlike a furnace, a heat pump has an outdoor unit that has to breathe and shed water even in freezing weather. Snow piling around it, or ice blocking airflow, is the most common cold-weather complaint. A quick check before the snow arrives prevents most of it.

• Clear leaves, branches, and debris from around the outdoor unit so air can flow freely
• Make sure the unit sits above expected snow depth and that nothing will trap water against it
• Keep at least a couple of feet of clearance on all sides and overhead
• Gently brush off any existing snow, but never chip ice off the coils or fins
• Confirm roof runoff or gutters are not dripping directly onto the unit where it can freeze

Settings and indoor checks

Inside, set the thermostat to Heat and confirm warm air is coming from the registers. During snowy weather your heat pump will periodically run a defrost cycle, briefly blowing cooler air and steaming outside; this is normal and not a malfunction. Avoid large thermostat setbacks in cold weather, since recovering from a deep setback can force the system into less efficient backup heat.

Replace the filter and check thermostat batteries while you are at it. Anything involving the refrigerant, compressor, or coils is for a licensed technician only. If your heat pump is icing over heavily and never clearing, or short-cycling, have HeatLand take a look. Qualifying heat pumps may be eligible for FortisBC and CleanBC rebates.

When to call a professional

A heat pump that is buried in solid ice, tripping its breaker, or producing no heat at all needs a technician. Do not pour hot water on a frozen unit or pull it apart yourself. A pre-winter inspection can verify the defrost cycle, refrigerant charge, and controls are working before the first snowfall.

Frequently Asked Questions

Is it normal for my heat pump to steam and blow cool air in the cold?

Yes. That is the defrost cycle melting frost off the outdoor coil. It lasts a few minutes and then normal heating resumes. Persistent icing that never clears is the warning sign.

Should I cover my heat pump before a snowfall?

Do not wrap or box in the unit while it is running; it needs airflow. Just keep snow from piling up and ensure it sits above snow level. A solid winter stand or risers help in snowier parts of the region.

Can I knock the ice off the coils myself?

No. Chipping ice can damage the coils and fins. Brush off loose snow gently, but leave stubborn ice to the defrost cycle or a technician.

Will my heat pump still heat well during a Vancouver cold snap?

Modern cold-climate heat pumps perform well in our typical winter lows. Keeping the outdoor unit clear and avoiding deep setbacks helps it run efficiently when it is needed most.

HeatLand Heating & Cooling is a licensed and insured, TSBC-certified HVAC company serving homeowners across Greater Vancouver. Our technicians diagnose the real fault, explain your options in plain language, and complete the work safely and to code.

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