Reply to How often do you change your HVAC filters?

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Reply to "How often do you change your HVAC filters?"

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[quote=Anonymous][quote=Anonymous]What does the manufacturer suggest for your furnace make and model? This isn’t a crowd source question.[/quote]

This - ish.  Systems can be set up to use different filters, so the recommendation would also be tied to the filter type.  For example, we have 2 of the same systems and each use different filters with different replacement recommendations.  We at least follow those, but more frequently than recommended is OK too.  Most of the 1" thick filters are supposed to be quarterly.  We have a 4" thick that is 6 months.  I also changed more frequently with pets - esp with high MERV rating (think that the smaller sized holes clog more easily and the fans have more difficultly circulating air if the filter isn't allowing proper air flow).

Some vents can accommodate filters - usually the black thin filters that are primarily for larger dust particles.  We had those one each vent (intake and out) at one point and it was super annoying to change them. Those were secondary to the main HVAC filter and we just changed them when it looked like it needed to be done.

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