Co2 Question

[Sigur Ros]

Okay basically i have a questions that hopefully someone can answer.

I am running 2 grow tents in a sealed room with aircooled hoods that are hooked up like this:

carbon filter --- > hood --- > fan --- >

the air is exhausted out through the top of the tent back into the room. The fans are 530 m3/h (one per tent).

I am not using an intake fan, its passive.

So my question is, if i released co2 into the room, would it move around or would it just fall to the floor and stay there? I know that it is heavier than air, but then again I am moving 1060 m3/h in that room. Would it not be sucked up into the tents through the passive vents?

Before i do anything else to deliver the co2 i would just like to know if this method is viable. I have a controller so yes i will be able to dose the room correctly (to a degree). My question is just whether or not it will be available to my plants as I'm not releasing it over them and even if i did it would be sucked out of the tent pretty fast no?

Thank you all!

[socialistpete]

Shut your exhaust off when you release your co2 and leave it off for an hour afterwards. Run your line at the top of the canopy. Or run a line like this window->hood->fan->window. this way your only venting the heat from the light. But I believe your temps need to be a little higher for co2 uptake to be most effective. Hopefully someone will correct me if I'm wrong.

[Sigur Ros]

i think you may have misunderstood what i said. Their is no window, i am just recirculating the air in the room, hence why i want to use co2. I'm just wondering if co2 will move through the tents or just lay on the floor. Thats what i'm asking really; will the co2 in the room be moved around by my setup or will it just sit on the floor not doing anything.

[socialistpete]

Even though co2 is heavier than air if you have a draw(vacuum) it will get moved towards it.