Quote Originally Posted by indicloset
Wow...thats a great idea...good job (on the write up as well, very detailed)...but if you had a problem finding a glass tube big enough, then damn, I got a huge Gavita enhanced spectrum 400w bulb...probably about the size of your glass cool tube and the shape of a MH bulb.

Would this work for the single source of exhaust in a smaller room? (along with an intake of course)

The air booster itself probably wouldn't vent out or exaust say a full grow room,but certainly would help,could be used to bring fresh air to the plants,but to use that air unit for just exaust may not be powerfull enough..perhaps a small grow box!

The air booster is powerfull enough to vent the heat from a cool tube set up because where it's a tight space,and the volume of space is small therefore the air pass over the bulb quickly where it's a small place and the heat comes with the air being sucked.................grow room exaust I say no! grow box perhaps it would..................About the glass tube or candle cover or what ever we want to call it lol,come in many sizes and length's....the one I bought fit the 1000w hps bulb perfectly,and there was many more glass tubes(candle covers) there that were much bigger! and many that where smaller...You could defentialy find one to fit your bulb,they even had the huge fat candle covers that would fit a 1000w mh bulb........man you wouldn't believe how plenty full this stuff is,it's everywhere once you get out and have a look around.
Mellow Man Reviewed by Mellow Man on . Homemade 1000w cool tube! First off let me say! that I asked around this forum several months ago about cool tubes for lights,we all know how exspensive those cool tube's with fans can be!...............by the time you buy the hood with glass $200 then you have to buy the fan and the duct work another $160 or so,it can get exspensive and odds are you will have to order most of it through the mail,which has a shipping and handling rate of another $50 to $80 bucks depending on where you live!......... So believe it or Rating: 5