Dry Ice for Co2

Can anybody tell me how much should be used for a 15 cubic foot space?And when is the best time to use it? Morning, when the lights come on, or during the heat of the day to further utilize it's cooling effects?

Don't do it..............just a waste of time & money. Co2 is best for large grow ops that have the tanks and regulators, etc. Isn't worth it for small grows, trust me even the sugar yeast thing isn't worth it, trust me I tested it.

Well, the only reason I want to use is for cooling, the Co2 is just a plus.

Also, the heat index is supposed to be in the 100's here in the next week, and my cab's keep the same air temp. as outside.

Plus, I've heard that it is beneficial to have Co2 when the temps get high like that.

it wont help man. you should experiment, as hot as its going to be the dry ice will be gone in a matter of minutes, and you will have to cut off all your ventilation for the CO2 to stay in the room. Youd be better off putting an AC unit in there.

I can't talk for myself, but there are a lot of people on here who have used CO2 on their small scale grow ops and have said that their was an increase in yeild from their last grow.

CO2 clearly will help. Plant's love it.

Even if it is just the yeast and sugar..

If you're looking to cool your grow room, freeze a bottle of water and stick it in there.
have you got intake and outtake fans?

If you don't you should, because that will dramatically decrease the temp..

peace

Hey man, read my posts, I'm going through similar heat issues. In one of my pics you'll notice a vicks vaporizer, I keep that fucker full of water and Ice which I monitor daily. I Think that might help. And with the co2 issue, grab a few bottles of "arrowhead Sperkeling Water" and spray their roots with this every few days. -D-