Thread: Make Up Air?
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  #25  
Old 2013-10-07, 8:57am
blueburnsorange blueburnsorange is offline
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The alley in question has four-story buildings on the front (where my openings would be) as well as the long side walls so there is minimal wind....

Dale had suggested above that a minimum of 10ft between is necessary but like I said, I could probably go longer than 15ft.
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