Quote Originally Posted by paperchaser825
I have a 2x2 growtent...it is 4'7'' high...the whole system will be ventilated like this.....

The carbon filter will suck stinky air out the tent which will go through a Cool Sun air-cooled reflector hood, which will be vented into the attic.

My question is: With a 172 cfm Vortex can fan (the tent is a total of 18.33333333333 <the three is a repeating decimal, lol, idk why i added that chit>) can I put a 400w in the tent or am I going to have to settle for a
250w?


O, by the way....I am pretty much set on this CMH (Ceramic Metal Halide) bulb made by Philips...spectrum of the lamp below.


Thanks in advance! :hippy:
You've probably already made your decisons and got things set up. In case you have not, or if anyone else is interested - my situation is similar, my tent is a little bigger (2.75' x 2.75' x 5.25')

I went with a 400W CMH with an easy cool 6. I modified a stanley blower to exhaust the light, cut a couple of 4" x 10" holes in the wall (match the tent vent windows) and ended up having to install a 6 duct booster fan (through the wall). Before the duct booster fan, I had temps of ca. 83 F, which was about 12 F above ambient. Afterwards, tent temps are now 1.5 - 3 degrees F above ambient - 73 - 75 F.

Don't see why you can't use the 400W, at least in the winter.