As the scorching summer heat starts to fade and the refreshingly cool weather of fall starts to settle in, residents of Laurel start preparing their homes and yards for the the upcoming cold weather. For many, that leads to the question of whether they need to cover their exterior AC for the winter.
While it may seem like a smart idea, the reality is there are several reasons why you shouldn’t cover your AC unit in the winter. Along with not being needed, covering your outdoor air conditioning equipment can actually cause problems.
Here, the specialists at H&C Heating and Cooling 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
Outside AC units are designed to withstand harsh weather conditions like snow in the winter season. These systems are built with durable materials and components 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 designed to protect the internal components from moisture and debris.
2. Covering AC Systems can Encourage Mold
One of the reasons you should avoid covering your outdoor air conditioning equipment in the winter is because doing so can trap moisture—which is the opposite of what you want in your outdoor unit. That’s because trapping moisture inside the unit generates the perfect conditions for mold and mildew to flourish.
Mold and mildew not only have a bad aroma, but they can also present health risks, especially for people with respiratory issues or allergies. Also, the excess moisture can corrode the internal components of the AC unit.
As an alternative to covering the unit, instead ensure proper drainage and keep the area around the unit clean of debris, allowing for efficient airflow and preventing moisture buildup.
3. Covered AC Systems Can Host Animals
Human beings aren’t the only ones who prepare for winter. Animals that live around your home are also looking for a warm, cozy place to crash for the cold months. For many critters, a covered air conditioner is an awesome winter refuge.
Birds, mice, chipmunks and even rats often make homes inside covered air conditioners. Animals residing in a covered AC unit can cause several problems. Rats can chew through wires, insulation and other connections, causing damage that may require pricey repairs. Debris animals bring into the AC to make themselves a warm and comfortable place to get out of the cold weather can obstruct airflow and ventilation, decreasing the efficiency of the appliance 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 wildlife, because an uncovered AC gives them less shelter from chilly temperatures than a covered unit. That’s better for your air conditioner—and leaves you with less mess to pick up and things to repair once the snow melts.
4. A Winter Cover for AC Units Restricts Airflow
Another reason it's better that you don't cover your AC unit in the winter is because a cover limits airflow through the unit. Suitable airflow is vital for the AC system because it helps with heat exchange and allows the unit to cool effectively. When airflow is constrained, the system has to work harder to achieve the desired temperature, leading to increased energy consumption and strain on the components.
In addition, if you turn on 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 absence of appropriate airflow could cause the compressor to overheat, resulting in its failure or damage. That’s why it is necessary to ensure the outdoor unit has no obstructions and is not covered to maintain the best possible airflow.
5. AC Maintenance Offers More Benefits Than Covering Your Air Conditioner
The bottom line is, it's a whole lot more effective to do a little maintenance for your cooling system than to cover your outside AC unit.
There are numerous key maintenance projects you should prioritize to ensure optimal performance and longevity of your AC unit. First, it’s wise to look at 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 they are free from dirt and dust buildup that would impede efficient heat exchange or airflow.
Regular air conditioning maintenance not only improves efficiency, but it also helps extend the unit's life span, lowers energy consumption and protects against costly repairs. Rather than using a cover, investing time and effort into routine air conditioning maintenance is a proactive approach that can substantially benefit your entire HVAC system in the long run.