Considering CO2 but need advice

JSB99

JSB99

Well-Known Member
In an earlier post I mentioned exhausting spent CO2 incrementally. After researching this, I realized that this is not the proper way to do CO2 enrichment such that you only need to supply CO2 to the plants and not freshly exchanged air.

Here are some questions I have about CO2 enrichment before setting up my new grow with the possibility of incorporating a CO2 tank system:
  1. Will a good tent (like a Gorilla tent) seal the grow well enough to do this?
  2. How would a carbon filter be used to control plant odors?
  3. When the lights are off I read that this is when you may want to exchange air. Doing this requires a damper so that the exhaust is closed when no air is being pushed though with a fan when the lights are on. Does this provide enough of a seal when closed or should I just not exchange the air at any point?
  4. With hoods being isolated from the environmental air and not adding heat to the environment, how do you control the temps inside the area if it gets too hot? My tent will be in an air conditioned room so is it possible to control the tent's ambient temperature just by the tent's outside surface area being cooled? I know you want the temps inside to be much warmer with CO2 so is that even going to matter?
  5. If the ambient temps aren't warm enough, is it a good method to use a fan controller for the hoods to warm up the environment by turning the fan speed down and letting the lights heat up?

Thanks for any advice. I am really interested in doing this and cost will not be an issue. This is for a six bucket DWC UC grow in a 4' x 8' x 8' Gorilla tent using 2 hoods each with a 600w HID bulb.
 
I look at my secret jardins when lights are on and the room is dark and I wonder "how the fuck do people run co2 in a tent???"
 
you'd have to water cool using a res, a chiller outside the tent and a heat exchanger such as a hydro innovations ice box.
or a mini split ac.
Carbon filter would recirculate in the tent.
Fan speed controller to manipulate temps, yes.
Motorized normally closed damper , yes. I just installed one in my room,
 
dbkick said:
you'd have to water cool using a res, a chiller outside the tent and a heat exchanger such as a hydro innovations ice box.
or a mini split ac.
Carbon filter would recirculate in the tent.
Fan speed controller to manipulate temps, yes.
Click to expand...

Yes, planning on using a chiller for the DWC.

So the filter wouldn't capture the CO2, is that correct?
 
The chiller is more for cooling the tent. you'd need two or run a stainless steel wort in the res that cools the room.
 
dbkick said:
The chiller is more for cooling the tent. you'd need two or run a stainless steel wort in the res that cools the room.
Click to expand...
Ah, I see. So one for the buckets and one for the tent. Chillers outside the tent (obviously) :-)
 
If you can't seal it up nicely a tank isn't going to go far. Hope refills are cheap. a minigen might be a handy item for you.
 
JSB99 said:
Ah, I see. So one for the buckets and one for the tent. Chillers outside the tent (obviously) :-)
Click to expand...
Yes, or a stainless steel wort on the nutrients. It just runs thru the res cooling the room , its' like getting two birds stoned.(trailer park boys flashback).
 
The wort just makes it so you don't have to run two chillers. Stainless steel worts aren't cheap though. Hydro innovations makes one I'd like to have.
 
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