How to Locate and Change Your Furnace Filter

Furnace Filter | How to Change Your Air Filter

As a homeowner, it is often necessary to locate and clean or replace your furnace filter in order to keep your HVAC system running efficiently. Note that while most filters should be replaced, some more expensive furnace filters are made to be able to be cleaned and reused. If you are trying to locate and clean or replace your furnace filter, this article can walk you through all of the necessary steps.

If you would like to learn more or it is time to schedule a maintenance appointment for your HVAC system, contact the heating & air conditioning professionals at Galmiche & Sons in St. Louis today.

We will ensure your furnace is working like new so you can welcome the cold season with the peace of mind knowing your house will stay warm and cozy.

How to Locate Your Furnace Filter

The first step to changing your furnace filter is to find it! Do not worry, lots of people have no idea where their filter is. Here are some tips to help you figure out where to get started.

  • Locate the Mechanical Room – The first thing to do to find your furnace filter is locating the mechanical room where your HVAC System is. Common areas for heating and cooling equipment can be the closet, basement, garage, or attic. In most St. Louis homes, you will be heading to the basement. However, for homes without a basement or older homes, the furnace may be in a storage closet or attached garage.
  • Switch Thermostat Fan to On – To help find your mechanical room, it can help to switch your thermostat fan setting to “on” and follow the sound.
  • Check the Side of the Furnace – After you have located the furnace, the next step is to find where the filter is on the unit. Many furnace filters are located on one side of the HVAC System.
  • Remove the Access Panel – In some furnace designs, it may be necessary to remove an access panel to get to the air filter located on the side of the furnace.
  • Air Grilles – Though not a common location, some furnace filters can be found in return air grilles. The grill will have a hinged face with the filter may reside. These are typically found in the ceiling or in the wall.

Changing Your Furnace Filter

Furnace Filter Replacement

Although most furnace filters should be replaced, some more expensive air filters are made to be able to be cleaned and reused. Changing your furnace filter should be as easy as sliding the old one out and replacing it with a new one. Just remember that the new air filter should be sized exactly so that it fits in the space without any gaps or extra space.

Contact Us About Your Furnace Filter Today

Whether it is time to schedule regular HVAC maintenance or you need a more serious repair, the heating & air conditioning experts at Galmiche & Sons Heating & Cooling in St. Louis can get the job done. We also are happy to answer any questions you have about your particular brand of furnace and choosing the right furnace filter. Just give us a call at 314-993-1110 or use our convenient contact form!

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