Sizing Holes For Exhaust And Fresh Air Intake Pipes - Kitchen & Bath Remodeling - DIY Chatroom Home Improvement Forum
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Old 01-19-2011, 01:58 PM  
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sizing holes for exhaust and fresh air intake pipes


I am building an underground house via poured in place concrete. Walls and roof are 10 inch thick concrete so I have to locate and size holes for exhaust and fresh air intake vent pipes since post drilling of holes is not an option. I need to:

1. size the vent pipes for maximum of 1000 cfm
2. is it possble to do one pipe with concentric exhaust and air intake pipes in one unit?
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Old 01-21-2011, 08:58 AM  
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The type and size of the hole would be dictated by the appliance using it. didn't they come with guidelines?
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