furnace filter efficiency impact

Jonny R · 2004-11-05T16:46:06+00:00

I've read in many places that you should change your furnace filterregularly as a dirty filter will lower the efficiency of your furnace.Excluding extreme cases where a filter is exceptionally dirty, howmuch of a loss in efficiency are we talking about for the average"needs to be changed in the next couple of months" filter?PS: I'm not trying to find a reason to stop changing my furnacefilters or anything. I'm simply curious as to how much impact a dirtyfilter can have. Is it 0.1 - 2% or more like > 10%?

Nov 05, 2004 20 Replies

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trader_4 8 years ago

Like I said, I have yet to see one of those in use on a system. Have you?

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furnace filter efficiency impact

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