TheOutlier Posted February 24, 2015 Report Share Posted February 24, 2015 Hi All, I'm after a bit of advice. I'm in the process of planning out my grow room/space. I have an under the stairs spot that's approximately 1400x800x1000. I've got myself a 400w HPS. In regards to ventilation, I am in the process of putting in sub-floor ventilation into my place to keep under the house dry and intend on splitting off one inlet to my grow room. I'm concerned about a drop in pressure as this ventilation will be running the length of the house, not to mention having 3 inlets. The fan will be a centrifugal 200mm fan. The inlet will be dropped down to 2 x 150mm inlets and then one will be split off to my grow room. So there will be three inlets in total. The question is, do you think there'll be sufficient power left to draw out hot air from the room? I don't intend on putting a carbon filter on it as the exhaust for this ventilation system will be at an end of the house where no one goes and neighbours should not detect any odour. Thanks Quote Link to comment Share on other sites More sharing options...
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