what size fan

Dr.StickyFingers

Dr.StickyFingers

Well-Known Member
is your light cool tube? are you running a scrubber?

if it is a cooltube you can take some tubing connect the cooltube to the booster fan and cool your light while you have an inline to vent the room seperately.

based on the dimensions of your tent youre probably going to want to go with a 6inch inline fan. As a general rule of thumb you want the air in your tent replaced 3-5 per minute
4x4x6 = 96 cu ft
Most 6inch inline fans are about 400cfm. so a 6inch inline will be plenty to change the air in the room even counting the decreased air flower from a scrubber.

also you shouldnt really need the fan for the air intake? The 6inch inline fan will create negative pressure so just open up a few flaps... I'm assuming its a tent again

hope this helped
 
H

henryy

Member
Just get an adapter and get a nice 6 or an okay 8 inch if ur not gonna use a ac or swamp cooler i wouldnt flower unless i was maxing out my temp at 76 degrees
 
M

mrdankbud1992

Member
Dr.StickyFingers said:
is your light cool tube? are you running a scrubber?

if it is a cooltube you can take some tubing connect the cooltube to the booster fan and cool your light while you have an inline to vent the room seperately.

based on the dimensions of your tent youre probably going to want to go with a 6inch inline fan. As a general rule of thumb you want the air in your tent replaced 3-5 per minute
4x4x6 = 96 cu ft
Most 6inch inline fans are about 400cfm. so a 6inch inline will be plenty to change the air in the room even counting the decreased air flower from a scrubber.

also you shouldnt really need the fan for the air intake? The 6inch inline fan will create negative pressure so just open up a few flaps... I'm assuming its a tent again

hope this helped
Click to expand...
im not using a cool tube just a wing reflector and yeah its a 4x4x6 tent............thanks for the help
 
legallyflying

legallyflying

Well-Known Member
6" inlet, and outlet in an ideal world.

Spend the $75 and get a temperature controller to hold the temperature where you want it. Which is 80 at 75 humidity in veg and 75-77 with about 40% humidity through flower.

Always always always better to oversize things a little then Mickey Mouse around with undersized shit.
 
booms111

booms111

Well-Known Member
no need for intake fan. buy the 6'' inline like a vortex or similar. look up passive intake and how they work...
 
legallyflying

legallyflying

Well-Known Member
You could do that, I'm not a huge fan of negative pressure however. Your basically making it harder for the stomata of the plant to absorb gasses by growing in a partial vacuum but whatever, either way will work

Passive inlets or outlets are also typically 4x the surface area of an active one. Just keep that in mind as well
 
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