Hey Hazmat
If you live were the power goes out alot You can buy a whole house generator For around 4000.00 with a swicthing box ,so when the power goes out a couple of mins on come the gen& when power comes back on. off goes
the gen.If I was going to use co2 I would start with co2 tanks.Those gas burning co2 generators are for alot bigger room.You can spray them with
carbonated water{seltzer water} do it when the lights are off so you dont
boil the plants.Here's some good clips on indoor grow room at Stoned Free guide to growing Cannabis.-Google Video .It will help you with fans and air cleaning too.Are you going to cover the walls and floor with white poly?
Zanor has a thread on here all about co2.Keep up the good work on the grow
room.