Sirius: This is a great point! In any enclosed grow area such as a tent or grow cabinet, it's important to have a larger opening for intake than for exhaust. This will maximize the efficiency of your fan in addition to keeping it working for longer. Plus, this will keep tents from "bowing" in, reducing your grow space.
Sirius: Google SketchUp can be pretty tough to use without training, especially if you've never used it and you just want to design one thing. Rest assured: some paper, a pencil, a little math, and careful planning will work just as well!
Keeping a door open is not a viable option for the stealthy gardener like me! I decided to use some creativity.
My sights set, I loaded Google's 3D rendering freeware, Google SketchUp, and got to work.
I built and installed 4″ x 10″ x 48″ wooden housing for the duct work for the exhaust of the Cool Tube (picture 3rd down). Next, three 6″ duct flanges into the back wall of the cabinet leading into the duct work spaced vertically 9″ apart.
You can build a good stealth grow tent as big as you want, with everything you need to, from the appropriate structure for the light fixtures to the exhaust fan and filter, and as long as you can accomplish the main requirements, you will have a fully functioning grow tent.
Now that you have the basic structure ready, it’s time to connect the rest of the equipment but if you don’t have much electrical knowledge or don’t take basic safety precautions, it can be quite dangerous, so to help you avoid emergencies, here are a couple of things you should have in mind.
A grow room fan is placed inside the grow room to create air movement above the canopy level, this not only allows the plants to cool down but also sways the plants around, promoting stronger branching that will be able to support the heavy buds that will develop throughout the flowering stage.