So I have been obtaining supplies to start my first grow. I will be building a box no bigger than 32" x 32" x 7' (may even do 24" x 24" x 7') to store in my garage. Framed with 2x4s, insulated with R-13 insulation, and lined with purple drywall. I will either be painting the inside flat white or using diamond mylar. My question is concerning ventilation. I purchased a 4" IPower 190cfm exhaust fan and a 10" carbon filter (came as a kit on amazon). I would prefer to have a intake filter also but I have read you want a slight negative pressure inside the grow room. To achieve this my intake would have to be smaller then my exhaust correct? I was looking into a 4" cone style filter or the 12" x 12" furnace hepa filters which I feel is way to large. What do some of you experienced growers recommend? For lighting ill be running either a HLG 135w 288 v2 3000k qb or 200wx6 3500k from the member higgs here on the fourm. I am a complete n00b I just like to research and ask around to build the best possible environment for my future girl. Constructive criticism is definitely welcomed.
n00b who always over thinks things...
- Thread starter a_pope493
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Medicated Bonsai
Well-Known Member
https://www.amazon.com/gp/product/B0714FFG4F/ref=oh_aui_detailpage_o02_s02?ie=UTF8&psc=1
The carbon filter in that combo set should be plenty to vent that 2x2.
The carbon filter in that combo set should be plenty to vent that 2x2.
Herb & Suds
Well-Known Member
I think your attention to detail will make you a solid grower ... good luck
I appreciate the kind words. Just thought of an idea for my intake side I could mount this on the exterior of my box and just reduce the size of the opening on the inside. Cheap/easy to replace filters and reducing the size on the inside of the box would still allow for negative pressure. I think most go down a size on the intake which in my case would be 2" does that sound too small or should I be okay since the space is so small. Don't wanna choke the fan up too much.
Herb & Suds
Well-Known Member
I wouldn't think two inch is big enough
ANC
Well-Known Member
I have just proven to myself that I no longer need to use any kind of soil or medium other than a rockwool cube and a sheet of half-inch polyester batting.
No more lockouts, no panicking about if the power goes out for a while as the cubes hole a shitload of water but get rinsed with fresh water every time the gravity feed T at the top on of the tray starts spraying water. Ok I am only one week into flowering but this is by far the easiest grow I've done other than outdoors over mild winter.
No more lockouts, no panicking about if the power goes out for a while as the cubes hole a shitload of water but get rinsed with fresh water every time the gravity feed T at the top on of the tray starts spraying water. Ok I am only one week into flowering but this is by far the easiest grow I've done other than outdoors over mild winter.