When and How to Change Your Furnace Filter

December 01, 2015

Maintaining your furnace can go a long way in the period in between furnace service appointments. One of the most basic, and crucial, ways to maintain your furnace lies in replacing your furnace filter. Having a clogged air filter could contribute to a number of negative issues for your heating and cooling system, its efficiency, and ultimately, how much you’re spending on your energy bills month after month.

So what goes in to consideration when you should switch out 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 changed every three months, dependent on the recommendations of the filter manufacturer.
  • Home habits: if you have pets in your home, it might make sense to change your filter more often due to pet dander. If you have someone in the house that has allergies or asthma, consider changing your home’s air filter more frequently to help with their symptoms.

Now you’re probably wondering how to replace your furnace filter. More than likely, this will change depending on what furnace you have, but usually: 

  • Open or remove the air filter panel close to the bottom of your furnace to uncover an open compartment.
  • On the top of that open compartment is where you will find your furnace filter resting on two metal lips.
  • There will be a small amount of 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, look at 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 the majority of cases, the arrow should point at the main part (or top) of the furnace. 
At D.A. Bennett Service Experts, we offer membership plans that include changing out standard furnace filters. Give us a call today at 518-205-3324 or arrange an appointment with us online.