When and How to Change Your Furnace Filter

December 01, 2015

Caring for your furnace can help more than you’d think in the period in between furnace service appointments. One of the simplest, and critical, ways to take care of your furnace is in changing your furnace filter. Having a filthy air filter could contribute to a number of negative issues for your heating and cooling system, its efficiency, and ultimately, how much your energy expenses are month after month.

So what goes in to consideration 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 usually need to be changed every month and 3 inch filters should be swapped out every three months, depending on the recommendations of the filter company.
  • 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 someone in your family suffers from allergies or asthma, think about changing your home’s air filter more often to help ease their symptoms.

Now you’re likely 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 expose an open compartment.
  • On the top of that open compartment is where your furnace filter is resting on two metal supports.
  • There will be a little space to move your filter back and forth that allows you to bring down one end of the filter and take it out of the compartment.
  • When adding the new filter, inspect the perimeter of the filter for an arrow that indicates the air flow direction, to be sure you’re installing the filter in the correct direction. In nearly all cases, the arrow should point towards the main part (or top) of the furnace. 
At Becht/Givens Service Experts, we’ll replace standard one-inch furnace filters as part of our regular furnace service Precision Tune-up or PLUS Maintenance Agreement service. Give us a call today at 502-785-8230 or set up an appointment with us online.