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Without an exhaust, there is no need to grow in my opinion. Unless one planned on using co2, but tha cost is greater than a fan and filter. And as I said if he wanted a 400, he could make his room smaller to fit better and get better results out of the gate.
A 400 over 15 square foot is a waste. Just being honest.
Quote: budgrowerwannabe said: ok so i need to build a vent system. IT right by the window plus i have little fan moving air around.I try to keep the door open all the time so they always have fresh air .
You're gonna want an inline fan and filter. Going off the size you stated I'd say at least a 6 inch model. If you want to start off right add an air cooled hood to the mix, you won't be sorry. Key things to keep in mind when setting up a room. Exhaust at least 2 to 3 times larger than the cubic foot of the room. More is better imo. Light at least 50 watts per square foot again more is generally better. Smell this is why a filter in needed. Don't want to go stinking up the neighborhood. Ossulating fan for inside at plant level for air circulation and this will also help the plants build stronger and healthier stems.
Well if you are only growing for yourself, I'd recommend getting or making a tent smaller than the closet in question. This would mean smaller fan, filter, and light, which would save you a few hundred in over all exspence. A 2x3x6 room with 400 watts will turn more than enough for a single persons supply. But it's all in what you want in the end.
An exhaust would go filter in room duct to hood/tube duct to fan. You would just make or use a hole near the floor for intake, the exhaust fan will pull air in thru this hole as it exhaust heat out of the room.
Quote: budgrowerwannabe said: I started out with ten plants seven are still alive they should produce enough for me? should i still make it smaller?
Seven plants, would fit nicely in a 3x3x6 tent. Panda film is cheap. An a 400 would most likely grow more than enough for you. Then you could get away with a 4 inch fan/filter. A set up like that is much easier to keep cool.
Later with more experience under your belt, you could upgrade to something along these lines, or bigger if you feel the need. A 600 watt with 6 inch fan/filter would turn some insane yields, but controlling temps can be a bitch at times.
Quote: Stoneth said: An exhaust would go filter in room duct to hood/tube duct to fan.
The most efficient way (in terms of minimizing chances of odor leaks) is Filter --> Fan --> Ducting --> Reflector --> Ducting outside. This way if there are any leaks it ends up blowing filtered air back INTO the room due to the positive pressure in the ducting. With your setup it'll be pulling unfiltered air from the room into the ducting before being exhausted outside because you're pulling negative pressure in the duct.
Interesting, I've read that before, but always done it that way. I believe I modeled my room off of Coda's. I'd love to test it out, but I can't. My fan and filter together is 37inches without duct, my room is only 36 inches by 22 inches. I'm running 600 watts and 6 inch fan/filter with no issues, heat smell, etc... Thanks for the info tho.