As the hot summer heat starts to fade and the relief of fall starts to settle in, residents of Bartlesville start preparing their homes and yards for the winter. For many, that leads to the question of whether they should cover their exterior air conditioning unit for the winter.
While it may seem like a great idea, in reality there are a number of reasons why you shouldn’t cover your AC unit in the winter. On top of not being necessary, covering your outdoor air conditioning equipment can sometimes cause problems.
Here, the professionals at Farris Heating & Air share five reasons why covering your air conditioner doesn’t need to be on your fall to-do list and what you should do instead.
1. Your AC Unit Isn’t Damaged by Snow
Exterior AC units are built to withstand harsh weather conditions like snow in the wintertime. These units are built with solid materials and hardware that can handle the outdoor elements without damage. The coils and fins of the unit are specially developed to resist corrosion, and the housing is crafted to protect the internal elements from moisture and debris.
2. Covered AC Systems may Encourage Mold Growth
One of the reasons you should not cover your outdoor air conditioning equipment in the wintertime is because doing so can trap moisture—which is not at all what you want in your outdoor unit. That’s because allowing moisture to collect inside the unit creates the perfect conditions for mold and mildew to flourish.
Mold and mildew not only have an unpleasant odor, but they can also present health risks, especially for individuals with respiratory issues or allergies. Additionally, the trapped moisture can corrode the internal components of the AC unit.
Rather than covering the unit, instead provide proper drainage and keep the area around the unit clear of debris, allowing for efficient airflow and preventing moisture buildup.
3. Covered AC Systems Can Host Animals
You and your family aren’t the only ones who get ready for winter. Animals that live around your home are also looking for a warm, cozy place to live for the cold months. For many animals, a covered air conditioner is the perfect winter refuge.
Birds, mice, chipmunks and even rats frequently make winter dens inside covered air conditioners. Animals residing in a covered AC unit can cause numerous problems. Rats can chew through wires, insulation and other connections, causing damage that may require pricey repairs. Debris animals bring into the AC to construct a warm and comfortable nest can impair airflow and ventilation, decreasing the efficiency of the unit and potentially causing it to overheat. In addition, animal waste can result in unsanitary conditions and potent odors.
Leaving your air conditioner uncovered helps deter creatures, because an uncovered AC offers less shelter from chilly temperatures than a covered unit. That’s better for your AC—and leaves you with less mess to pick up and things to repair in the spring.
4. An AC Cover Restricts Airflow
Another reason you shouldn't cover your AC unit in the winter is because a cover limits airflow through the unit. Suitable airflow is crucial for the AC system because it facilitates heat exchange and allows the unit to cool effectively. When airflow is restricted, the system has to work harder to reach the desired temperature, resulting in increased energy consumption and strain on the components.
In addition, if you run your AC without realizing that the exterior unit is covered or because you simply forgot, it could result in a range of problems. One issue is that the shortage of appropriate airflow could cause the compressor to overheat, causing its failure or damage. That’s why it is crucial to ensure the outdoor unit has no obstructions and is not covered to maintain maximum airflow.
5. AC Maintenance Works Better Than Covering Your Air Conditioner
The bottom line is, it's a lot more effective to do a little maintenance for your air conditioning unit than to cover your exterior AC unit.
There are numerous key maintenance projects you should prioritize to ensure maximum function and longevity of your AC unit. First, it’s wise to inspect your outdoor AC unit regularly and clear any debris such as leaves, twigs and dirt to allow proper airflow. Second, check and clean the coils, fins and filters to make sure there isn't any dirt and dust buildup that would hinder successful heat exchange or airflow.
Regular air conditioning maintenance not only enhances efficiency, but it also helps extend the unit's life span, reduces energy consumption and protects against costly repairs. Rather than using a cover, putting time and effort into routine air conditioning maintenance is a proactive plan of action that can substantially benefit your entire HVAC system in the long run.