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N8N N8N is offline
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Default is it always better to use a thicker filter in furnace?

On Oct 22, 12:46*pm, dpb wrote:
Bob F wrote:
"dpb" wrote in ...
james wrote:
My furnace was installed with a 16x20x1 pleated filter.


It looks like there is enough space to fit a 16x20x2 filter. This should last
longer and reduce air resistance.


Is there any reason not to?
How can doubling the thickness _reduce_ resistance?


It doubles the surface area.


?????

--


He did specify pleated. If you can find a 2" thick filter with a
single layer of media, he is correct, the surface of the media would
be approximately double that of the thinner filter, assuming the same
number of pleats and that both filters have the pleat creases at the
very outside of the filter.

nate