Setting up a CO2 grow room.

[HydroDawg421]

could do what i did, i just did one open room. i keep a small tent/area outside the sealed room just for clones / bonsai mothers. my room isnt as big though. i have a 2ton mini split a/c, 105 pints total for dehus, and i have a natural gas co2 generator. same brand as aaron above but mine is the smallest they manufacture its a 2 burner. the room itself is framed with 2x4's, r12 insulation, 6 mil poly, and mold resistant drywall, flat white paint, white epoxy floor, 30 amp flip box, 20 amp circuit for dehus, 15 amp circuit for fans and whatever. custom insulated doors and removable panels with rubber gasket all the way around theres also dampers on springs that allow you to run the room sealed or unsealed depending on the time of year as well as exhausting the whole room outside per light cycle. if you click through my grow journal not sure which page its on but i show everyone with photos how i built the room step by step maby that will be helpful to you goodluck with the build

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AMAZING!

Some pics during the build and then finished but prior to going 'live'.

 

[Kola_Kreator]

Thanks @HydroDawg421 @jcdws602 @xox @DoubleAtotheRON

I'm now planning an open flower room design and I'll run a 5 X 5 for veg. I would be a fool not to listen to the guys who have had the experience.

Thinking to give each plant a 3 X 3 space with its own trellis net and 4-500 watt light.

 

[nxsov180db]

I grow in a 12x7x8 shed that is completely sealed. Lights out the c02 raises to pretty high levels. For the most part it’s not a problem until late flower. I noticed negative effects from excessively high co2 levels late flower so I ended up adding a fan and filter to exhaust co2 when lights out. Definitely a must in my situation. I’m not sure how sealed your shed is but if it’s anything like mine you may want to consider that variable.

What sort of issues did you experience from the high co2 levels during the dark period in late bloom? How high was the co2?

 

[jcdws602]

What sort of issues did you experience from the high co2 levels during the dark period in late bloom? How high was the co2?

Buds would sometimes foxtail more than usual and smell seemed to also be affected. I run 1200-1500ppm and when the lights would go out it would climb up to the 3000’s.

edit: I also forgot to add that flowers would also take longer to finish.

 

[nxsov180db]

Buds would sometimes foxtail more than usual and smell seemed to also be affected. I run 1200-1500ppm and when the lights would go out it would climb up to the 3000’s.

edit: I also forgot to add that flowers would also take longer to finish.

ok, I was having issues with excessive fox tailing also and everyone was telling me co2 doesn't do that.. My night time levels would also get high, maybe 2000-3000. Did your fox tail issue go away as soon as you vented at night?