Good afternoon, I have this diagram I snatched from another thread and I'd like to know if anybody vents their room with the exact method. Meaning, do you suck air through the carbon filter, through the fan, then push the air from the fan through the cool tube and out of the tent/grow box. So it would look like this {SCRUBBER => FAN => COOL TUBE => OUTSIDE}. The diagram below will show exactly what I'm talking about.


I'm looking for info from anybody who has implemented this successfully or not. I'm in an attic using a 36"x22"x64" HTG tent. I have it insulated up to about an R-24 value with direct ducting from my air handler. The temps with 8 CFL's in it hit a maximum of 77 degrees. After I changed to a Metal Halide setup for vegging, the temps went to 88F peak. I'm already using the 4" fan linked in that quote and the same carbon filter as well. I'm getting the cool tube that is also linked tomorrow and I'm going to vent exactly how it is shown above. I'm using a 250W MH/HPS setup as well and there are already 2 plants veggin in this tent, both about 2wks old. Everything is at the top of the tent with very minimal ducting, probably 3ft of duct in total. If you have any info to help me out, please post, DON'T BE SHY! Thanks ladies and fellas.

--ahriman

Havent doen it, but that is the approach i would take if i had the same scenerio.

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Thanks for the reply, I'm gonna install the cool tube tomorrow then I'll take some pics and maybe put together a mini-guide or something so anybody else with my growing limitations will be able to reference what I've already done.

And they said an attic grow couldn't be done!

I would put the fan outside of the tent...make it pull from the end of the run.....this way you arent pushing any warm air into the cool tube and you have the fan out of the tent...fans create heat

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I don't grow..I just lieCheck my journal
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Hi,

I recently created a thread similar to this asking for help, yet despite me bumping it, noone seemed to be able to give me any answer Sooo... I just did a bit of thinking and this is what I came to: (excuse my poor MS paint rendering)



Basically, if the tent is air tight, then you draw outside air through the light to back outside. This creates a closed circuit of air that you will not have to worry about scrubbing. Then, you can just sit the carbon scrubber inside and let it scrub the room.

The reason I chose to do my room this way is because I am injecting CO2. Also, I have an A/C unit that further reduces the temperature of the room, as well as bringing in a but of fresh air.This method is a bit more expensive, but well worth it imo.


-AR

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that's how my setup is too adrenaline...works wonders

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to start why insulate it. you dont want to keep the heat in. the second guys diagram dosn`t make sence either. how do you have air circulating in the room if the intake goesthrough the filter and staight out with out going in the room first. i dont see an intake into the room only through the filter.
ahirman. when you get your cool tube put the filter on the intake end in the room. run a hose from the intake up to the highest point in the room to grab the heat and smells that rise. then it will go throught the cool tube and through a hose that goes out of the room and into the fan and out. keep the fan out of the room. get rid of the insulation and paint with flat white paint or use black/white plastic ( panda film )

adrenalinrush. do you have an intake staright into the room? you need to vent the co2 to much is not healthy

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Heh, it's good to know that I am on the right track then.

Aye, I have the A/C unit drawing in air from the outside room. I do not, however, have an exhaust really... With an airtight room and air constantly being drawn in, I'm probably going to have to also build an exhaust, hey?


-AR

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How To Make Cannabutter Goodies || My Growroom In Progress

It is always good to have an exhaust system as well. If you just have a fresh intake not an exhaust system, you will just be trapping and recirculating stale air.

exhaust before intake my friend...if I had to choose one or the other to set up first it would be exhaust

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