best way to get airflow through all these hoods A/B

[DIGITALHIPPY]

going to be 9 daystar A/C's
all 600's most likely, maybe 3 1k's in the middle

what would the best way to make this work.
option A 3 312 6" fans at the begining of each hood-row

option B 1 12" 1000 cfm at the start of it all.

sealed room so hoods have there own intake-exhaust

yes the ends are graduated in size 6-8-12 inch... trying to decrease resistance for the airflow.

 

[yamaha_1fan]

I currently have one 6" pushing on 3 lights (3 rows=3 fans) and that seems to be doing the job. SInce I only have one full row running now, I am not sure exactly how well it keeps the room cool. But I get plenty of airflow from the exhaust port.

Once I get all the lights running, I may put a 12" at the end pulling from each hood.

I would use 3 fans, one on each row. JMO

 

[Guest]

The photos show 6 600's with a 10" inline PULLING/SUCKING air through with air to spare. If I could run 9 600's it would be a 12" inline.

In the center of the pic is a vertical 10" steel duct suppling intake to the hoods and at the lower right of the pic at floor level is the 10" inline fan.




I hope this set up helps you. At one end come up out of the floor from under the house if you are on the first floor and/or have a crawl space or basement. Do the same across the other end with the exhaust at floor level. I used 6 inch saddle taps with dampers to attach the 6" flex duct to.

You have a very nice set up possible.

In the next pic look at the vertical 10" pipe, notice the saddle tap extending out to the right with the 6" flex duct attached. The tap with damper allows for balancing airflow.


Ty-Stik

 

[DIGITALHIPPY]

thanks guys.
Yamaha-
i looked over your grow a few times, i like what i see. its a buster paying 485 for only 2500 wats of light... i want your 9k

Ty-Stik-
thats intresting the vent coming from the ground, i remember seeing that grow a while ago, just didnt get into details.
so that "Saddle tap" is the reduce from 10"->6"
i was planing on useing thoes to help the airflow...

 

[HerbMan26]

Ty-Stik way is the best way to cool lots of light but its also the hardest to setup, cause you'll need alot more hard ducting, a 12" CanFAn Max should handle 9 600 if done right.A 10" Manifold down the center of your 5 on one side and 4 on the other. You cant beat a good manifold setup because each light is cooled separately.