How Many Filters Does Your HVAC System Need?

When it comes to heating, ventilation, and air conditioning (HVAC) systems, the number of filters used can vary depending on the size of the home or apartment and the number of floors the central air system must support. Generally, most homes will have two air filters installed on the intake grilles. However, larger homes may have more than one HVAC system, each with its own filter. It is important to check all possible locations to ensure that all filters are accounted for. In some cases, the air filter may be located where the return duct enters the air handler to trap any contaminants.

This is usually the case for homes with multiple returns, but it is still important to check. In other cases, the installation may be limited and require the filter to be placed in the return part. This can be accessed by opening a grille that covers the duct. It is important to replace these filters regularly in order to extend the life of the HVAC system and improve overall air quality in your home.

Dirty filters make it harder for the air filtration unit to circulate airflow, so it is essential to keep them clean. When looking for air filters in your home, it is important to note that they may be located in different places depending on the unit. For example, one unit may have an air filter installed at the rear while another may have a filter installed in the air treatment system. It is important to thoroughly check all locations and note them for future reference. In some cases, air filters may also be located in vents near the boiler or air conditioning system. These filters help keep dust, pollen, pet dander and other small particles out of your home's air supply.

It is a good idea to look up your air handler and use it as a guide; you can usually find the filter very close by. To ensure that your home's air remains clean and free from contaminants, it is important to periodically replace used boiler filters. Knowing exactly where your home's air filters are located and how many there are will help make this process easier.