It’s not just the condition of an air filter that impacts an HVAC system’s cooling efficiency. Just because you regularly clean or replace the filter doesn’t necessarily mean it’s helping the AC achieve optimal energy savings. The size and design of the filter matter, as well. It’s usually best to speak with one of our certified HVAC technicians to ensure you’re using the right size and type of filter. Also, since air filters tend to clog very easily during the summer, it’s crucial to stay on top of AC maintenance in your Watson, Louisiana, home.

Downsides of a Dirty Air Filter

The AC runs frequently, night and day during summer, so the filter gets dirty and clogs quicker than it does during cooler weather. A clogged filter restricts airflow and can cause the blower motor to overheat. When this happens, the entire cooling system can fail, which translates into costly repairs and replacements. A clogged filter also increases energy consumption because the AC has to work harder to push the air through the filter.

Furthermore, clogged filters cause airflow and evaporator coil issues. The AC will have a difficult time achieving your desired temperature which results in hot and cold spots. When the evaporator coils don’t receive enough heat because the air filter is clogged, they can freeze. This is another issue that leads to costly repairs and replacements.

Downsides of a High-Rated MERV Air Filter

The air filter’s denseness and design directly impact the pressure drop that occurs within the HVAC system’s blower. Many people believe higher-rated minimum efficiency reporting value (MERV) air filters improve air quality and HVAC efficiency. However, the higher the MERV rating, the harder it is for the AC to pull air through it. This means the AC has to consume a greater amount of energy to keep your home cool. Fortunately, by installing a filter with a lower MERV rating and changing it regularly, you can increase HVAC efficiency without compromising indoor air quality. You should always use the manufacturer’s recommended MERV-rated filter for your system.

Contact One Hour Heating & Air Conditioning® of Baton Rouge at (225) 320-4162 to learn more about the ways your home’s air filter impacts cooling efficiency.