hangshai
Well-Known Member
Recently I upgraded my grow room... Oh, BTW this is totally a hypothetical and fictional account since my grow room is imaginary and lives in my head with all my otrher imaginary friends... Now that Ive got that out of the way...
So, my room has 8 lights total, it is 10x10x20, with 20 being the length, in feet. Kinda show box shaped. The lights are in two rows of 4. Now here is the dilemma. I have the lights on a closed system, where the intake is coming from outside the room, and the exhaust is blowing out, as opposed to my last setup that had my can fan sucking air in and then through the lights before out the room.. This way I figured I could control temps better, keep my lights cool while blowing Co2, etc. Here is the problem..
I have about oh, 20-30 feet total, maybe more, on each independent line of four lights. imagine a capital letter L. the short leg goes out the north wall, while the lights hang east to west in a line, and the long part of the l goes through the lights, after the ducting goes through the lights, it goes to the fan, an 8 inch deal, and then out the exhaust hole.
Now, I have 2 questions.. the first being, the intake HOLE, and exhaust HOLE are only 4 inches in diameter, because I had to use clothes dryer vents for the exhaust holes, and, Im definitely noticing that the fans aren't cutting it. Do I need bigger fans? Maybe use a 12 inch on one set of lights, and double up the 8 inchers on the other set? or is it because of the 4 inch intake and exhaust holes? Causing back pressure, and all that. Sorry if I am not being clear, but I think I explained everything.. Eagerly awaiting any response!!
So, my room has 8 lights total, it is 10x10x20, with 20 being the length, in feet. Kinda show box shaped. The lights are in two rows of 4. Now here is the dilemma. I have the lights on a closed system, where the intake is coming from outside the room, and the exhaust is blowing out, as opposed to my last setup that had my can fan sucking air in and then through the lights before out the room.. This way I figured I could control temps better, keep my lights cool while blowing Co2, etc. Here is the problem..
I have about oh, 20-30 feet total, maybe more, on each independent line of four lights. imagine a capital letter L. the short leg goes out the north wall, while the lights hang east to west in a line, and the long part of the l goes through the lights, after the ducting goes through the lights, it goes to the fan, an 8 inch deal, and then out the exhaust hole.
Now, I have 2 questions.. the first being, the intake HOLE, and exhaust HOLE are only 4 inches in diameter, because I had to use clothes dryer vents for the exhaust holes, and, Im definitely noticing that the fans aren't cutting it. Do I need bigger fans? Maybe use a 12 inch on one set of lights, and double up the 8 inchers on the other set? or is it because of the 4 inch intake and exhaust holes? Causing back pressure, and all that. Sorry if I am not being clear, but I think I explained everything.. Eagerly awaiting any response!!
