Range Hood Steel or Aluminum Flex-ducting?

Old 05-16-05, 08:03 AM
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Range Hood Steel or Aluminum Flex-ducting?

I am installing a chimney style range hood against a 45 degree corner wall. The hood instructions recommend steel ducting only for the hood. I have seen Paul Ryan use flex duct on a recent chimney hood install. He appears to connect it to a steel elbow at the wall entrance and probably using steel in the between wall section. Can I use flex duct for the entire run (approx. 3-4 feet total) or do I need to use steel for the ducting? Or can I use steel between the walls and flex for the hood connection? I believe the fan is rated somewhere around 300 CFM. Kinda confusing I know. HELP! thanks in advance! Hund
Old 05-17-05, 09:45 AM
Ed Imeduc's Avatar
Join Date: Aug 2002
Location: Mountain Williams Missouri
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For sure use smooth steel pipe all the way. The other will get a grease build up in it. You can use steel duct work for it also.


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