is it always better to use a thicker filter in furnace?
In article ,
"Stormin Mormon" wrote:
Accordian fold, pleated filters. Look a bit like this, from the side:
V^V^V^V^V^V^V^V^V^V^V^V
So, the double thickness does provide more surface area.
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Indeed it does. No problem about that. How does that *reduce* resistance?
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