Insulated flex duct as a cyclone muffler

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Forum topic by gtbuzz posted 05-01-2013 06:42 PM 1278 views 0 times favorited 0 replies Add to Favorites Watch
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05-01-2013 06:42 PM

I was looking over Bill Pentz’s design for a cyclone muffler ( and I came across this tidbit

…it would have been easier to just use a length of fiberglass insulated HVAC flex duct in place of the muffler as a long enough length does a better job and costs far less. I tried that and he was right!

Has anyone given that a shot? How well does it work?

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