i know, i know...i already made a thread about this in a different section, but hopefully more people will see this here and understand that this is not a complicated process. i learned from reading these forums, so hopefully someone can walk away after looking at this and hopefully give them something to start with. anyways, here's the pics. looking at it from the outside. little lower inside closer view of exhaust fan and light support rig with variable heights. lights will be attached via bolt and wingnut to easily move lights up and down when needed. the fan is blowing air out, so negative pressure is created within the tubs. fresh air is constantly being pulled in through these two passive air intake holes in the bottom tub.
I just thought of something. Would it be more effective to have the intake and exhaust holes on opposite sides of each other? It looks like you put them on the same side, i'm wondering if thats gonna effect the air flow at all. I threw together this little picture to help explain where i'm getting at.
the temps stay at steady 78 degrees with the 6 lights running and top closed. however, i also thought about this. the top half is not attached to the bottom half (so i can work on the plant without removing the lights) so all i gotta do is turn the top 180 degrees. simple fix.
I love the setup, especially how you've got the lights rigged. I've seen other rubbermaid cabinets that have had a lot of problems with the lights. In fact, you've shown me how to go about setting up something similar to keep my mother plants in. The lighting was the biggest challenge for me.
The setup in the picture on the right has the better airflow & cooling. Mass, of moving air, likes to move in a straight line. Gravity will pull the incoming air down putting your lights directly in the preferred path of the airflow. I use this method myself to cool my 400W HPS : 1 fan bottom right 1 foot in diameter, 1 sq. foot intake hole on the upper left.
yeah, i used 3 of those flat pieces of steel (2 for the inside 1 for the outside for support) and 4 L brackets to make that support thing for the lights. and for those concerned, i did turn the top of the tubs around, so the airflow is better directed.
I love this design for a stealth grow. I want to set up the exact same thing. However, i had a few questions first. One, i want to grow 1 or 2 plants. I want to veg them with cfls for about 3-4 weeks. However, i wondered if you guys thought i could flower in the box as well, if i switch out the cfls with a 150w hps with reflector. I would use the computer fan up top for the exhaust (maybe throw in a small filter and thin insulated exhast paths) and make an intake hole 10 inches from the bottom. I want it to be as close to silent as possible. I need to keep the whole process stealth so i want to find short plants so i dont run into height restrictions and the lights burn the plants. Anyone have any suggestions for a good strain thats nice and short?