by Jorge Cervantes
CO2 Emitter Systems
CO2 emitter systems produce no toxic gases, heat, or water. They are also precise, metering an exact amount of CO2 into the room from a cylinder of compressed gas.
Buying a complete CO2 emitter system at a hydroponics store is usually the best option for small indoor growers.
When full, a 50-pound steel tank weighs 170 pounds. A full 20-pound steel tank weighs 70 pounds. A full 20-pound aluminum tank weighs about 50 pounds, and a full 35-pound tank weighs 75 pounds. Most suppliers exchange tanks and refill them. the tanks are also safety inspected once a year.
Carbon dioxide is very cold when released, and once in the atmosphere, CO2 is heavier and cooler than air and cascades onto the plants below. A good air circulation system is essential to keep air mixed.