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There is a heated debated in the HVAC industry, especially in colder climates that are prone to heavy snowfall. Should you cover your outdoor unit or not? HVACs in Tacoma can take a beating from various forms of inclement weather throughout the year. Here are the pros and cons to covering your outdoor unit. Keep Out the Critters One of the best things about having an AC cover is its ability to keep out the local fauna. Squirrels, mice, birds, raccoons, and feral cats are drawn to the warmth your unit gives off in the winter. They can easily squeeze their way inside and call it home. Birds will build their nest inside, bringing in sticks and dried grass that could easily start a fire. Rodents could gnaw through internal wiring, costing you hundreds of dollars on costly repair and new parts. Snow and Ice In the winter, snow can compile and compact around your outdoor unit. This can cause your unit to seize up, which isn’t good, especially on a cold, winter’s night. While a standard AC cover will keep snow from getting inside your unit, it won’t stop the pile up around your unit. A low hanging roof would be a better option to keep snow from piling up on top of the unit. Other structures made of lattice, brick, or durable plastic provide space above and around the unit, protecting it from pileups of snow and debris. Yard Debris and Air Flow Another point made from the “No Cover” camp is that unit covers restrict air flow. Air flow is important especially during the summer when your unit can easily overheat. However, autumn storms will blow leaves and yard debris into your unit. If left untreated, dead leaves and foliage can fester into mold and mildew which will damage the metal components of your unit. An ideal air cover blocks leaves and debris from getting inside the unit while still allowing airflow around the unit. A 1 to 2-foot clearance around the unit is standard for safe operating. Regular Maintenance Whether you decide to use a cover or not, it is important to keep your outside unit and the area around your unit clear of debris and snow. Flush out dead leaves and debris by spraying inside your unit regularly with a standard hose. Have your unit inspected at least one a year by a licensed technician trained to diagnose HVACs in Tacoma.
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