by Jorge Cervantes
CO2 Generator Systems
CO2 generator systems that burn natural gas or LP (propane) gas to produce CO2 are less expensive to operate than emitter systems, but they produce heat and water as byproducts of the combustion process. Generators use a pilot light with a flow meter and burner enclosed in a protective housing.
Operate the generators manually or synchronize them with a timer to operate with other grow room equipment such as ventilation fans. CO2 is heavier and colder than the ambient air, so you must have good air circulation for even distribution of CO2.