When and How to Change Your Furnace Filter

December 01, 2015

Caring for your furnace can help quite a bit in the period in between furnace service appointments. One of the most basic, and crucial, ways to maintain your furnace is in switching out your furnace filter. Having a filthy air filter can contribute to a number of unfavorable issues for your heating and cooling system, its efficiency, and ultimately, how much your energy costs are month after month.

So what goes in to consideration when you should change your furnace filter?

  • Type of filter: the two most common filter sizes are 1 inch and 3 inch filters. 1 inch filters usually 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 replace your filter more often because of pet dander. If a family member suffers from allergies or asthma, consider changing your home’s air filter more regularly to help with their symptoms.

Now you’re possibly wondering how to replace your furnace filter. Obviously this will change depending on what furnace you have, but typically: 

  • Open or remove the air filter panel around the bottom of your furnace to reveal an open compartment.
  • On the top of that open compartment is where your furnace filter is resting on two metal brackets.
  • There will be a bit 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 putting in the new filter, check the perimeter of the filter for an arrow that specifies the air flow direction, to make sure you’re installing the filter in the right direction. In most cases, the arrow should point to the main part (or top) of the furnace. 
At Service Experts Heating & Air Conditioning, we offer membership plans that include replacing standard furnace filters. Give us a call today at 239-908-6991 or set up an appointment with us online.