Indoor Exhaust Set Up

Oh you guys and your METERS lol... blah. hahaha!

chzrh; are you planning on use a carbon scrubber at all? That second option is 176 CFM if this cubic meter per hour to cubic feet per minute calculator is working correctly. It looks like you can add on about a 4" carbon scrubber. If you went with the kit; I'm not sure if that fan is even powerful enough to properly pull from the scrubber. I think it would work, but at reduced efficiency and you'd be working the crap out of that fan.

I'm using a 400 CFM fan to exhaust my 6" scrubber; most 4" scrubbers I've seen are usually rated around 200 CFM. Remember, the CFM (or in your case, the cubic meter per hour) is going to be reduced when you add resistance to it (via the scrubber.)

Also, price wise, 127 euros seems VERY expensive (at least converted to USD for my comparison) for that fan strength and carbon scrubber. You could get much more powerful fan with a fan speed controller AND a better scrubber for less than the cost of this kit. If it were my wallet, I would shop around a little and compare.

You can get by with passive air intakes; you will most definitely have some negative air pressure space in your tent with using just an exhaust fan; but ultimately I think you'll find you'll want an intake system down the road.

So if it were ME, I would ask myself if I'm preparing for the long term or if I'm buying this to see if it helps remedy a current situation. If you get a larger rated fan (more cubic meter per hour,) you could get a fan controller to slow down the speeds if need be or speed them up if temps start rising, you'd be working the fan less (less heat, longer life,) increasing the efficiency of the carbon scrubber (if the air flow suck is not strong enough; it won't pull the odor causing molecules to the filter, which could in turn instead find their way out your passive air intakes.) If you don't plan on expanding down the road; go with a more appropriate size/rated fan and scrubber.

That's just my two cents :2cents: :bong:
 
Thanks Blue. you have the 125L. Is your space bigger or smaller than mine?
 
Mine is 30cm smaller (60x60x180) .. but my fan is a little overkill :) the more air exchange the merrier for me (within reason - i have sound levels and eleccy bills to think of)
 
@vaporhaizer.am planning on using a Carbon filter. Thanks for your Input.
 
@vaporhaizer. 1 cubic meter is 35.3 cubic feet
 
chzrh, thanks for clarifying for this imperial yankee lol :stylez rasta smoke:

Those air flow specs are measured by cubic meters per hour, so 280 cubic meters per hour would be 9,884 cubic feet per hour; but CFM is cubic feet per minute, so divide 9,884 by 60 minutes and that comes out to 164.7 CFM. Hey my math skills aren't too far off! :High 5:
 
i have the exact same tent as you and currently have a 5"x12" rhino filter hooked up to a 250m3h systemair rvk fan. i can't close the door because the temps hit 40c with my light set to 400w. i've just ordered a manrose 6" 500m3h fan, a reducer and some 6" ducting to try and sort it out. i'll let you know how it goes. i'm using passive intake btw and venting into a chimney breast with about 1.5m of acoustic ducting.

red-eye
 
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I dont know if Iam doing the math right. My grow space is 1.458 m/3. The Ruck Fan 125L pulls 330 m/3 per hour. That is 5.5 m/3 per Minute. or 194feet/3 per Minute. Is that good?
 
If you were to have a fan that pulled 750m3 per hour, could you use a filter rated at 400m3ph?
 
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