Blueprint Controllers CO2 Generator LP High Altitude 10-burnerThe 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. Electronic ignition and dual solenoid valves eliminate the open pilot flame and provide safe, reliable starts. A safety tip over switch automatically stops gas supply to the burners if the unit is not upright. This unit includes a gas regulator, 12 foot hose, hanging hardware and a three year warranty.