What if im not able to put any holes in the ground? Only in walls and doors n shit. Im tryin to decide how id set everything up with my closet. I could put a hole in my closet door n let the air exit into my room that way. But how id get the new air in there is puzzling me. I needa figure out a blueprint were i can keep it closed off n have it not get to hot n the closet and cycle all the air in n out with no smell at all. Eventualy ill b running two 300watt hps so itll get pretty warm specialy with a well insulated room.