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Draft hood connections

Chris Bernhardt

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I think it depends both on the type of application and on the manufacturer. The B-vent instructions on the Simpson Dura-Vent site say that it's okay to connect B-vent material directly to an appliance, but when it refers to the flexible B-vent material it says that a draft hood adaptor is required.



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Originally posted by Jerry Simon

On a related note, and perhaps *might* explain why B-vent shouldn't be connected to a draft hood, an HVAC guy once told me screws are not allowed in B-vent. Don't know if either is true, though.

FWIW, it is OK to drill a 1/4 in B-Vent for inserting a CO meter probe - Bachrach tells it's CO class attendees it has letters from the manufacturers.

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