I dug a pretty big hole, say 20 x20 inches by four ft deep. And put my 6 inch flex intake in that. Built a wooden box structure over top, that I then camoflauged by making a wood holding shelf along outside of the shed.

Temperature control has been a challenge in my shed/grow. I used 2 inch thick, foam boards to increase insulation about 18 months ago. I wish that I'd put I'd doubled or tripled that.

Initially I had plants/ resevoirs right on concrete slab. Don't do that...lol..
genuine Reviewed by genuine on . Intake/lightleak question :wtf:hi everyone,i've built a growroom in the back of my shed,i have a 6"fan for extraction and 2 x 1.2m lenghts of 4"pipe that i want to use for air intake(pulling air from rest of shed).my Q is...if its daylight outside and my light is off,how do i stop light leeking down the pipes and messing things up!!please help,i need to know before i cut 4"holes i dont need,thanx!:jointsmile: Rating: 5