The problem is that when i start to use co2 i need to have a controled ventilation process so im not wasting it, so i need to block in ways air can enter. thats why i need input on how much fresh air is needed to keep my room cool, i know it will be cooler once i air cool my lights, but im not sure if it will keep my temp low none the less. here is a picture i drew of what i was thinking about doing. tell me what you think, thanks------click on picture
santacruz_organic Reviewed by santacruz_organic on . Ventilation? help me! If you saw on my "temp increasing" my grow room temp has been increasing. i have direct ventilation from out side right now ( pics below) but i want to use venting pipes to air cool my lights and so i can start using CO2. i put all my plants under one light (1000w mh) instead of two and turned the other one off. this decreased my temp by almost 10 F and now they are around 75F. I need to know if i should have one pipe going through both lights and sucking air from the ceiling or if i should Rating: 5