From all the different Co2 threads that i've found, none that I could find clearly explained how to setup a system. They all mentioned bits and pieces, but I didn't see any complete how-to's. I've seen mentions of propane systems (which cause heat from burning the propane) and paintball gun cannisters (how do you hook this up?) and yeast/sugar combinations (general consensus seems that these do little, only really worth using if you have a very small space with no ventilation).
What exactly would I need to purchase and put together for a bare-bones system? I have access 24/7 to my grow area, so I can do manual stuff if needed.
.... i usually run an air line to the back of a fan to blow the co2 around my room... not sure how big or small .... you need air movement to move the co2 though. That is a complete co2 set up that will manage itself. all you need to do is check when the tank is empty and refill. only at about 450 bucks for intial set up
If you have a large grow a CO2 generator is the only economical option. It costs way too much to be filling up tanks when large rooms will deplete a large tank in a day or two. A large tank of CO2 is like 35 bucks for a refill. A tank of propane in CO2 generator will last at least 10 times longer.