When and How to Change Your Furnace Filter

December 01, 2015

Taking care of your furnace can help quite a bit in the period in between furnace service appointments. One of the most basic, and crucial, ways to care for your furnace lies in replacing your furnace filter. Having a clogged air filter could contribute to a variety of negative concerns for your heating and cooling system, its efficiency, and ultimately, how much you’re spending on your energy bills each month.

So what goes in to deciding when you should replace your furnace filter?

  • Type of filter: the two most common filter sizes are 1 inch and 3 inch filters. 1 inch filters typically need to be replaced every month and 3 inch filters need to be replaced every three months, depending on the recommendations of the filter manufacturer.
  • Home habits: if you have pets in your home, it could make sense to switch out your filter more often as a result of pet dander. If you have someone in the house that deals with allergies or asthma, consider changing your home’s air filter more frequently to help ease their symptoms.

Now you’re probably wondering how to change your furnace filter. Inevitably this will change depending on what furnace you have, but normally: 

  • Open or remove the air filter panel close to the bottom of your furnace to reveal an open compartment.
  • On the top of that open compartment is where you’ll see your furnace filter resting on two metal supports.
  • There will be a small amount of space to move your filter back and forth that allows you to remove one end of the filter and take it out of the compartment.
  • When installing the new filter, check the perimeter of the filter for an arrow that indicates the air flow direction, to make sure you’re installing the filter in the proper direction. In nearly all cases, the arrow should point towards the main part (or top) of the furnace. 
At Service Experts Heating & Air Conditioning, we offer membership plans that include changing out standard furnace filters. Give us a call today at 318-588-8163 or schedule an appointment with us online.

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