Is Snow Buildup Bad for My HVAC Unit?
One of the most incredible gifts of the winter season are days befitting the name "winter wonderland." These beautifully snowy days have undeniable charm. However, as a homeowner, you must check off a few tasks before enjoying the frosty fun. If your HVAC unit is exposed to snow, we recommend you start there. Losing heat in the winter is unpleasant and potentially dangerous, so we feel obliged to prevent this from happening to as many people as possible! If you want to learn more about avoiding issues with your outdoor HVAC unit during and after a snowstorm, grab your hot cocoa, and let's get started!
Snow Related Issues
While HVAC systems are designed to withstand the elements, snow creates some unique issues.
HVAC units require unobstructed airflow to function optimally. Snow accumulation around the condenser, particularly near vents and intakes, impedes this airflow. When airflow is restricted, the system works harder to regulate temperature, leading to decreased efficiency and increased wear and tear on the system. Even if airflow can somehow be maintained despite the snow buildup, the weight of snow on an HVAC unit causes it to operate inefficiently and consume more energy to maintain the desired indoor temperature. When left unattended, snow accumulation around an outdoor unit will, at minimum, increase energy bills.
If snow is left to melt, it can refreeze and lead to further complications. The icing of components can cause serious damage to your HVAC system. The expanding and contracting that occurs during freezing and thawing can break even the most seemingly sturdy components. The less snow (or any precipitation) around the unit, the less likely ice-related issues will occur.
Preventive Measures
Inspections: Schedule regular, seasonal inspections with certified HVAC professionals before the winter season. They can check for any potential vulnerabilities that could be amplified by snow buildup, provide suggestions for your unique situation, and ensure that you're as prepared possible for the season ahead.
Clear Snow: Safely remove snow buildup around the unit, delicately using brushes or gentle brooms. Avoid forcefully removing ice or icicles so as not to damage the unit. Regular snow and ice clearance prevents extensive buildup and potential damage.
Protective Shields & Placement: Ideally, your unit will be in an area that avoids snowfall. Even if your unit is covered on the top, snow can drift horizontally and gather around the unit. If this isn't possible, however, there are fences and covers available that can shield the unit from snow, ice, and debris while allowing proper airflow. Please speak to a licensed HVAC technician about how to install them safely!
Preparing for storms before they hit, and taking steps to ensure proper airflow, will keep your heating system working efficiently and effectively all winter long.
If you have any questions or concerns, feel free to contact us.
Whether you need 24-7 emergency service or a solution to improve your indoor comfort—at home and work—call us at 781-224-2400 or submit a convenient contact form.