Quote:
Originally Posted by Michael G.
You are correct on the filter.
Here's another concern.
My garage gets hot and humid were my HVAC sits.
Wouldn't that effect filtration with the paper (if any) in the filter compared to have one inside the house
on my return vent?
Just a thought
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The problem is that you probably have a return air grille in every room, so every grille would need to have a filter.