lazypothead420
Well-Known Member
I was wondering how powerful of fans would i need to cool a 4ft long 6 ft tall & 2 ft deep cabinet? I've been lookin into them and im a lil clueless with the fans. Thanks for the help guys!
Need help with exhause and intake
- Thread starter lazypothead420
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strangerdude562
Well-Known Member
I think 48 cfm, not sure if i did the math right i'm too high.
lazypothead420
Well-Known Member
Oh and i forgot one thing im only using 2 fans to exhaust and blow fresh air into 2 different rooms so im gonna have to split the ducting so it can blow out in two diff. rooms and also cool a cooltube with 2 150 watt hps bulbs.
Hairy Bob
Well-Known Member
Use passive intakes, slightly larger that your exhausts in each room. 48cfm is the right cfm to circulate the air every minute, I would go with around 100cfm though as you're pulling through cooltubes. You can't overventilate though so maybe go a bit bigger incase you decide to upgrade your lights.
TheFaux
New Member
I was wondering how powerful of fans would i need to cool a 4ft long 6 ft tall & 2 ft deep cabinet? I've been lookin into them and im a lil clueless with the fans. Thanks for the help guys!
Do you already own the 2 fans? If so, what are they rated for?
I'd use one for the lights and one for exhaust w/ passive intake.
cleef
Well-Known Member
This is my exhaust setup. It sounds like my cabinet is pretty similar in size to yours.
The first picture is the cabinet. The exhaust box is that rectangular MDF box mounted to the right side of the cabinet. You can also see the intake on the lower left hand corner. That glowing round thing is a humidifier. Above that is my timer and power distribution.
The second picture is the exhaust fans looking from inside the cabinet.
Picture three is inside the exhaust box. The air is blown from the cabinet into the exhaust box by the fans. It then passes through two aluminum window screens before exiting through the holes in the bottom of the box. I usually cover both screens with activated charcoal, which is the black stuff in the photos covering all of the top screen and part of the bottom screen. There's nothing stinky in there now, so I mostly uncovered the screen to ease ventilation.
Picture four is the outside of the exhaust box.
Both fans are supposed to move 100cfm each. With both of them running plus my 400W HPS, the box stays just above 80degrees.
The first picture is the cabinet. The exhaust box is that rectangular MDF box mounted to the right side of the cabinet. You can also see the intake on the lower left hand corner. That glowing round thing is a humidifier. Above that is my timer and power distribution.
The second picture is the exhaust fans looking from inside the cabinet.
Picture three is inside the exhaust box. The air is blown from the cabinet into the exhaust box by the fans. It then passes through two aluminum window screens before exiting through the holes in the bottom of the box. I usually cover both screens with activated charcoal, which is the black stuff in the photos covering all of the top screen and part of the bottom screen. There's nothing stinky in there now, so I mostly uncovered the screen to ease ventilation.
Picture four is the outside of the exhaust box.
Both fans are supposed to move 100cfm each. With both of them running plus my 400W HPS, the box stays just above 80degrees.
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lazypothead420
Well-Known Member
Thanks guys, i have two computer fans now but i wanna get sum type of inline fan so i can keep all the light in (looks a lil obvious with light commin out of a cabinet, lol). One other thing, how can i get a carbon filter to mount on the inside of the ducting? I dont wanna have anything comming out of the box becides a cuple extension cords..