hi i want to know how to vent properly the room is about 200sq feet and eventually will be running 5 600watt HPS in there i dont really have an idea on how to vent it ..the room has a window that i plan on using for the exhaust and a hole that i was planning to use as the intake it comes in from the furnace room ill only be running 2 lights at 1st tho but i wana make sure everything is vented good im also using co2 pls help me out