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Reply by k4zmb

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Posted on Cyclone confusion

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k4zmb

19 posts in 145 days


#1 posted 08-17-2019 02:43 PM

With a 1 1/2 HP, I think the 6” duct is oversized. Wood magazine articles have recommended 5” steel duct, with 4” being too small, except for drops. That is how I built my system, and no complaints. I am going to purchase an industrial style air speed / CFM meter soon just to get some real numbers for my system.

My DC is a 2 hp, does that give me much advantage over the 1 1/2?
I could not find any 5” metal duct in local big box stores, so that presents a challenge. I suppose I could make my own from 6” by cutting, riveting & soldering.
BTW, I purchased a Proster anemometer that does have CFM mode. It seems to work well.
Thanks for the offer input.
Apparently there is some margin on specs as there are a lot of people using various sizes of cyclones, duct sizes, etc. Do you have an opinion on the Jet 12” impeller to replace the stock HF one?

-- Marc, “When in doubt, err on the side of caution”


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