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submitted 1 month ago by [email protected] to c/[email protected]
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[-] [email protected] 1 points 1 month ago

Wait how often are furnace filters supposed to be changed?

[-] [email protected] 2 points 1 month ago

The guideline is 3 months but it is entirely dependent on how often you run your furnace, and how dusty or pet-filled your environment is.

I used to manage buildings, so I would deal with hundreds of filters at a time, people with pets or those who ran the circulation function continually needed 3-month replacement. Other people who did not run the fan continuously and did not keep pets, and stayed clean, you could easily get away with a year.

You have to hold the filter up to the light to know, there's no way to judge it based on time it's just not useful

[-] [email protected] 2 points 1 month ago* (last edited 1 month ago)

So I'm well overdue for a new filter lol. Still dealing with sprinter (spring winter)where I am and have a dog. Not gonna say how long it's been since I switched it.

[-] [email protected] 1 points 1 month ago* (last edited 1 month ago)

Every three months. Maybe less if you don't have central A/C. There are also really big fancy filters that might last a year but my furnace doesn't have that.

this post was submitted on 19 Apr 2025
52 points (98.1% liked)

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