Hi guys it's been a while coming back on missed the site an all the good info available. Anyway I'm in process of setting up again I was wondering if it's possible to get fresh air intake from under floor from grow rroom instead of window or window box setup as I would kike a stealthy intake I got the exhaust covered goin into chimney breast please guys if any one using this type of intake/Out take an how efficient is it compared to fresh out sides air?