My sights set, I loaded Google’s 3D rendering freeware, Google SketchUp, and got to work.
This allowed three different height settings for the light. The unused two positions are capped off. Take a look…
My inline fan with had 6″ opening (28 square inches) so I would need 56 square inch opening. I went with two louvered grills that were 5″ x 8″ which gave me 80 square inches – 30% for the louvers = 56 square inches. Perfect!
Now that my fan room was set up, I allowed the exhaust to escape upward into a carbon filter. I mounted the filter inside a Rubbermaid tote to make the whole setup more discrete.
On Craigslist I found a cabinet kit still in the box for only $35. It came in at 24″ L x 30″ W x 70″ H. Next, I purchased a 6″ inline fan for another $100. The fan combined with a 400 watt light and Cool Tube from a previous grow gave me something to design around.
We learned above that the cabinet is 24″ deep. Now this Cool Tube was 20″, hardly enough room to attach two 6″ flex ducts for ventilation without having to keep a door open.
Final Harvest Weight: 264 grams (9.3 Ounces)
A rule with any grow space is to have the intake’s opening twice the open area of the exhaust’s.
I installed a sealed fan room to house the 6″ inline fan mentioned above. This sat in the top inside of the cabinet, pictured below.
See how one grower built his own stealthy grow cabinet (in pictures), then learn how to build your own!