Just to add as I didn't really mention the bag hangs on the outside of the tent just above the intake. Touching the tent to receive the heat for activation
Thinking an ideal place to place it would b to hang it just above ur passive intake dude I have a 1.2 X 1.2 with the back of the tent about a foot away from the wall leaving a small channel for a tower pedistal fan at either side to mix the air and co2 well at the passive intake site. The co2...