I have no pics at this time but I have a 24' x 30' x 39' micro soil grow 90w TriBand UFO LED hanging 2 inches from the top & three single 2ft T5's running vertical in 3 of 4 sides venting with 4' duct booster 80 cfm thru Pvc light traps at the Top 2 passive intakes 4' each pvc light traps at the bottom as well lined with white plastic a 6' clip fan to move air around it is in a spare bedroom that has a house Temp of 75' But I'm getting Temps at the bottom around 88' and temps near the top of low 90's do you think I can even start my grow ? or should I work on getting down the temps before I even get serious... if So what tips would you give to lower the temps ? another intake ? a bigger fan ? Thanks in advance for any Tips
I don't imagine the LED putting off much heat, probably those T5's. Try to increase your exhaust CFMs using a good 200-300 cubic feet per minute inline fan. That should help keep temps down under 80 with those T5's. I wouldn't start until you get the temps lower because unless you have extra CO2 added, 90 degrees is too high. It could potentially stunt growth.
Do you think having a 6' duct booster that will be reduced down to a 4' out will cause too much resistance?
Its a small space & I have a 4' out already installed, would just add a reducer & run the 6' at 240 CFM would this not work ?
Yeah it would work. I personally like to keep everything the same, 6" fan with 6" ducting and 4" fan with 4" ducting, but yes it will work.