Fan question

[OGCOUGH]

What CFM should my fan be to vent in air from outside to cool my 600watt HPS? I know I need two one to bring air in and one to exhaust air out so whats a good CFM on both of them. For 6 plants btw. TY

 

[Skavenger]

Bump

 

[the chef]

:bump:

 

[nouvellechef]

Depends what your air temp outside is really. I would go with oversize fan and a speedster controller. Once you get to the point of the outside air cannot cool it on full blast, time for plan B. I would imagine a 6", 440 cfm would do ya.

 

[ozzydiodude]

IMO the more air you move the better, use a 400+cfm fan and speed/temp controls on both the lights and grow area. The ideal temp zone of 75*-80* can be a pain to achieve but when you do your plants will reward you with outstanding growth and bud production.

 

[legalize_freedom]

what is the size of your grow space? cubic ft?

 

[OGCOUGH]

what is the size of your grow space? cubic ft?

Its 5x4x8 so its 160cf. Im gonna flower in there by the way.

 

[zem]

hey there OGC if your gettin 2fans you'll be venting better if you place em boh as exhaust and make 2 holes for passive intake

 

[pcduck]

Vortex 6" for the room. somewhere around 449cfm, no need for a fan for intake, use passive intake

Are you trying to just cool the light? Do you have a A/C reflector?

Carbon filter>a/c reflector> outside exhaust fan

 

[nouvellechef]

4", 170 cfm C.A.P