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10-09-2007, 03:00 AM #1
OPSenior Member
Noob's guide to growroom set-up : a work in progress
Exactly- a passive intake doesn't use a fan.
Active intakes can add a whole new level of complexity and problems. You have to match airflow pretty carefully between active intake and active exhaust- More intake than exhaust will stink the place up, and an underperforming intake will limit exhaust cfm.
A passive intake ( that's large enough) will balance according to negative pressure created by exhaust.
I like can inlines for the bulletproof factor, and low operational noise. Also, they pre-package fan&filter for a couple bucks less than a la carte- so you know that they'll match.
One thing to keep in mind when comparing fans is static pressure capacity, if you need it for long runs. The inlines move a bunch of air assuming a low static pressure, but capacity drops pretty quick when air pressure on the exhaust side exceeds intake pressure- you know, like when you're blowing into a tube.
Squirrel cage designs maintain much better airflow against pressure, but chew a bunch o' watts doing it.
Different designs for different purposes.rhizome Reviewed by rhizome on . Noob's guide to growroom set-up : a work in progress Ms Stinky has shamed me. :( Back when she first hung the ??complete noobs guide to growing?, we talked about doing a ?? noob's guide to grow-room set-up?. I never got around to it- then I saw her ?? garden type examples thread?, and it guilted me into getting my ass in gear. So here we have ( at ) it- the ?? Komplete Noob's guide to setting up your first growroom.? I'm gonna start with some meta stuff- questions to ask yourself before you even start. After that, ( I think) Rating: 5I assume you understand that we have options on your time,
And we will ditch you in the harbour if we must-
But if it all works out nicely,
You\'ll get the bonus you deserve
From doctors we trust.
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