Tag Archives: Ventilation

Ventilation Design, Revision 0

The grow room ventilation system will consist of a filtered exhaust and filtered intake.

The exhaust system will use 6″ tubing. It will extract air from the grow room through a carbon filter unit. It will be powered by a 6″ inline fan. The exhaust system will expel air to the exterior of the house, through a boarded up basement window.

The intake system will use 6″ tubing. It will pull air from the basement through an automotive cabin air filter. The intake system will expel air near the floor of the grow room.

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Grow Room Design, Rev. 2

Minor tweaks so that the Foylon goes on the inside, covering up the PVC and reducing degradation from UV light.

Enclosure will be built with 1″ PVC and Foylon walls. It will measure 5.3′ x 3.75′ x 6′. The enclosure will be anchored to pressure treated plywood at the base. If need be, it will also be anchored to the basement ceiling. Foylon will be attached with Wide and Tough Gorilla Tape. Weatherstripping will be placed along the edges.

Grow Containers will be 5 Gallon Food Grade Buckets sitting on milk crates with 6″ net pots in the lids. They will have either 2 or 4 mist nozzles depending on mist pattern. They will drain from the bottom, back into the reservoir.

Reservoir will be ~10 gallon in size, sourced locally, and depends on local pricing and availability.

Pump will be an Aquatec 8800 RO Booster pump with an 80/100 Pressure switch and Shurflo RV Accumulator.

Intake fan will be a 6″ inline 240CFM duct fan filtered with an automotive cabin air filter at the intake.

Exhaust fan will be a Ventech 6″ inline fan and carbon filter combo.

Power will be supplied by a 15 A Circuit spliced from the nearby 20 A Bathroom circuit, mounted in an RV electric hook-up.

Lighting will be two Apollo 400 Watt ballasts with wing hoods, swapped between HPS/MH as appropriate.

Controller will be a Raspberry Pi, with relay switched outlets and temp/hum inputs.

Grow Room Design, Rev. 1

I submitted Revision 0 plans to a number of forums and Reddit. The general feedback was more light and thicker PVC. I decided to add a hanging panel to the ceiling, to more evenly distribute the weight of the lights and allow for fine tuning their placement. I also remeasured the space and tried to leave room for a dry/cure cabinet to be installed in the space as well. I added in electrical, ventilation and plumbing. My plan for using Velcro along the edges was supported by community feedback. The lights will be 400W and ventilation is 6″ diameter.


Further Reading:
http://www.reddit.com/r/microgrowery/comments/2wdbjr/need_help_with_diy_grow_tent/
http://www.rollitup.org/t/need-help-with-diy-grow-tent.861062/
http://www.420magazine.com/forums/do-yourself/240307-need-help-diy-grow-tent.html
http://forum.grasscity.com/indoor-medical-marijuana-growing/1357787-need-help-diy-grow-tent.html

Super Cheap Window Well

Part of Phase 1 is making the necessary repairs and improvements to the house that will be needed for the grow room. The grow room will be going into the basement of the house, and will need access to an exterior exhaust vent.

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