The Importance of Changing Air Filters
Over the years of doing HVAC maintenance, one of the things we recommend most to our clients is to regularly change your air filter in your HVAC system. The reason why is threefold: energy efficiency, health, and maintaining your HVAC. Let’s break down each section and show exactly why is it critical to regularly change your air filter.
Clogged, dirty filters block normal airflow and reduce a system’s efficiency significantly. With normal airflow obstructed, air that bypasses the filter may carry dirt directly into the evaporator coil and impair the coil’s heat-absorbing capacity. Replacing a dirty filter with a clean one can lower your air conditioner’s energy consumption by 5% to 15%. Over the course of the summer months, that can add up to quite a bit in energy savings.
Your HVAC system comes in contact with all of the air you breathe throughout your house. Your air filter’s primary job is to keep you healthy. However, as it becomes full of dirt and dust, it becomes less effective at filtering out unwanted airborne pathogens. By regularly keeping the filter clean, you are keeping your air clean for your entire family.
HVAC systems can be expensive to repair. The filter also works to protect the system itself by keeping all manner of objects from reaching your fans, coils, and other inner components to your HVAC system. Just like with air filtration, a dirty filter doesn’t keep your HVAC system as protected as a clean one.
Luckily, replacing a filter is easy and cheap to do. For central air conditioners, filters are generally located somewhere along the return duct’s length. Common filter locations are in walls, ceilings, furnaces, or in the air conditioner itself. Room air conditioners have a filter mounted in the grill that faces into the room.
Some types of filters are reusable; others must be replaced. They are available in a variety of types and efficiencies. Clean or replace your air conditioning system’s filter or filters every month or two during the cooling season. Filters may need more frequent attention if the air conditioner is in constant use, is subjected to dusty conditions, or you have fur-bearing pets in the house.
Have any questions or concerns about changing your air filter? Give us a call! Our technicians will gladly walk you through the process of replacing your air filter, and can give you recommendations on which filters will work best for your system.