New airflow design with two duct fans

Lion-O

Active Member
I have just purchased a new SECOND 440 cfm fan for my ducts. Ever since I put the tent in and was just using the one fan, temps climbed, still in the green area for temps, but still higher. Here's my new design. Didn't hook up yet. Right now (until lights on) I have the one fan pulling from the same grow room, across lights, sucking out tent through T, then out. Later today the new design will be put into place. I think it'll be much better. The room has two floor fans, tent has two small clip fans. Tent has 2 veg plants, 6 new small clones. Flower has 4 plants that have about 2 weeks left. Temps are low 70's at night, high 70's end of day. Tent low 70's to just above 80 for a high. This is WITHOUT the new diagram in place. Thoughts?growRoom.jpg
 

Lion-O

Active Member
Hot in the room now. 79 degrees... Will wait a while to see if temps drop, but may have to vent light duct outside instead.
 

Lion-O

Active Member
yeah vent the light duct outside the room
Thanks for the assurance. Temps weren't going down, so just did that. Now they're starting to drop. I figure for that design to have worked I'd have had to lower the fan for lights considerably or get one hell of an exhaust fan. Couldn't find a wye duct anywhere locally so just added another vent hole to the styrofoam over the window.
 

Lion-O

Active Member
Just occurred to me, how can I vent out the air from the veg tent without sucking out stink from the flower area? Right now I have a TEE in the veg tent, with intakes in the bottom. How do I exhaust air from the tent?
 
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