Blueprint Controllers CGLP-8 CO2 Generator LP 8-burnerThe Blueprint Controllers CO2 Generator LP, CGLP 8 features eight preinstalled brass burners that generate 21. 2 cubic feet per hour of CO2 using liquid propane. The generator includes plugs to reduce the number of active burners, making it easy to reduce the CO2 and heat output to suit a smaller growing space. The generator features electronic ignition and dual solenoid valves, which eliminate the open pilot flame and provide safe, reliable starts. A