I just finished a rubbermaid growbox like many others here have built. Sorry, no pictures yet, but they're coming. I have six 26w cfl with a 4" inline fan and passive intake. The fan is the duct booster type (tiny fan inside a 4" metal duct) which supposedly pulls 65 cfm or 85 boosted. On my test run, temps inside the box reached 100 F. Ouch! Is it likely that a speed controller boosting the fan will be enough to control my problem, or should I resort to buying a different fan or run dual fans of the same type?
:stoned:They call it skunkleberry:stoned:

Thanks,

Magnum
Thomas Magnum Reviewed by Thomas Magnum on . Rubbermaid help I just finished a rubbermaid growbox like many others here have built. Sorry, no pictures yet, but they're coming. I have six 26w cfl with a 4" inline fan and passive intake. The fan is the duct booster type (tiny fan inside a 4" metal duct) which supposedly pulls 65 cfm or 85 boosted. On my test run, temps inside the box reached 100 F. Ouch! Is it likely that a speed controller boosting the fan will be enough to control my problem, or should I resort to buying a different fan or run dual Rating: 5