NO,no pics. Unless you still have a copy of overgrow....
You know I do regret not stating this: One of your comments in your orig thread was something like this "please don't tell me to use 6" when I have 4". Well right there you are cutting capacity by one third!
To be perfectly truthful, I should have said I had my 6" fan blowing thru 3 1000w lights. I don't anymore. I don't use CO2, and I have a charcoal filter, the largest available and a 12" fan runs that, which cleans the smelly warm air, cleans it and sends it outside. A while back I changed the ductwork whereby after the air is cleaned, part of it gets piped back thru the lights, and exhausts it back into the 'clean' side 12" exhaust. So now I have a 12" scrubber, and a total of 5 lights circulating all on the one 12" 1000cfm fan. Of course the air that goes thru the lights is already pre-heated to some extent, but it saves running 2 six inch fans. One fan was running 3 lights, the other was running 2.
SN
SpaceNeedle Reviewed by SpaceNeedle on . Calling SpaceNeedle. HVAC question. I was told to search you out because my question wasn't getting answered in my thread here: http://boards.cannabis.com/indoor-growing/125263-ventalation-fans-fans-fans-fans.html Ultimately my question boils down to this: (from the thread) I guess I just wanted to know where in an 18 foot run of duct that has a light in the middle of the run, would you place a 275 cfm and a 175 cfm fan to get the best cooling possible. Forget all that other stuff, if someone could just answer that it Rating: 5