1000w Hood: Venting size needed?

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Tact

Learning Everyday
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The 1000w Magnum XXXL hood has the option of a 6" or 8" fittings in the hood.

My question:

Is 8" overkill for a single light in a cool 5x5 basement? Do I need a 8" (750 CFM) vortex/Can fan to properly cool this, or will 6" (440 CFM) get the job done? The duct work would not be that long as it would exit the house about 10'-15' feet away.

Thanks guys. :ccc:
 
Do you plan on having any other ventilation? Fans are meant to do more than cool your light and space. You really need to exchange the air in your space 3-4 times a minute to provide your plants with enough CO2. You have 25 sq ft--how tall is this space? Figure your cubic feet and your cfms and go from there.
 
Hey Hemp Goddess thanks for your reply, I appreciate it!

The ceiling is about 6.5 feet tall, I actually got input in this from DonJones in my very first post a few days ago but I momentarily forgot about it in the barrage of information I have been reviewing lately. He suggested a 650 CFM fan to be used for exhaust, which would be closer to an 8" vent then a 6" for my hood. Everything just continues to get more expensive with 8", (2) 8" blowers would be about $500, as opposed to $350 for (2) 6" fans, needing one for active air in, and one for active air out. With the electrician coming Monday, this is quickly becoming a $1500-$2000 operation, an electrician is coming out Monday to set up two dedicated 20 amp circuits on a sub-panel to the grow area, along with (4) outlets in the grow area. Hardly the budget grow I remember FAIL-attempting as a 17 year old kid in my closet at my parents house as a kid :D.

On a side note:

I called a pest control service because a saw a dead cockroach on my bathroom floor a few days ago, nasty, they are coming out on Wednesday. Should I have him spray my basement? The grow area for my basement was derelict and unused until Project: Greenroom started, I just swept up the area down there were quite a few dead bugs down there. Or would the pesticides be a red-flag for something in the general area of a plant im going to inhale in my lungs, I can see it going both ways. Not sure if the pesticides will make its way into MJ when its well ventilated active in/out air system.

Thanks for the reply again!

:ccc:
 

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