Thread: CFM for carbon filter?
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Old 08-07-2008, 03:08 PM
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Originally Posted by Londoner View Post
yes mate i run a 600w hps in a cooltube using only 1 fan/filter to cool my lamp and vent my room, was told it wouldnt work, but it does, temps rarely go above 26 degrees c, and when i zip myself into the tent i can feel plenty of fresh cool air being drawn in from the passive intakes. As long as you keep yr ductwork as short as possible, keep any bends or turns in the duct minimal. and use insulated/sound proof/sonoduct ducting after the cooltube because standard duct can get quite warm from the heat being blown thru the tube and without the insulated duct it will heat yr room further. Heres my c/filter/fan/cooltube setup.
This Really depends on the size of room, how many lights. Cooltubes are great because they have minimal airflow restrictions. I wouldnt recommend this for everyone, But if you can make it work for you than go for it.

Also hit up your local hydro shop, ask about used gear, they are usually a goldmine of cheap used equipment, I got my 3500 cfm centrifugal blower for $60 and they retail for like $400
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