Hello everyone I am trying to figure out if this duravent double wall pipe is suitible to be used for a 20 foot run outside my house?
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The second question I would have is once I get above my roof line and have over 18 inches of clearance can I go back to single wall pipe?
Thanks Steve
(broken link removed)
The second question I would have is once I get above my roof line and have over 18 inches of clearance can I go back to single wall pipe?
Thanks Steve