Caring for your furnace can help quite a bit in the time in between furnace service appointments. One of the simplest, and critical, ways to maintain your furnace is in switching out your furnace filter. Having a clogged air filter can contribute to a variety of unfavorable concerns 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 replace your furnace filter?
- Type of filter: the two most common filter sizes are 1 inch and 3 inch filters. 1 inch filters normally need to be switched out every month and 3 inch filters ought to be replaced every three months, dependent on the recommendations of the filter company.
- Home habits: if you have pets in your home, it could make sense to replace your filter more often because of pet dander. If you have someone in the house that deals with allergies or asthma, consider changing your home’s air filter more often to help with their symptoms.
Now you’re possibly wondering how to change your furnace filter. More than likely, this will vary depending on what furnace you have, but normally:
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- Open or pull off the air filter panel near the bottom of your furnace to reveal an open compartment.
- On the top of that open compartment is where you will find your furnace filter resting on two metal brackets.
- There will be a little space to move your filter back and forth that allows you to remove one end of the filter and pull it out of the compartment.
- When adding the new filter, check the perimeter of the filter for an arrow that indicates the air flow direction, to ensure you’re installing the filter in the correct direction. In the majority of cases, the arrow should point to the main part (or top) of the furnace.