CO2 burners offers the indoor grower the most efficient and cost effective method to increase carbon dioxide (CO2) levels. Advanced “2-stage” electronic ignition module eliminates open pilot flames and ensures proper operation. *         Dual-solenoid valves provide complete redundancy with the gas controls. *         Tip over, or “tilt switch” function that instantly shuts off gas flow if the unit is not upright. *         Multiple heat shields provide extra protection to the critical components. *         Uses clean-burning precision milled brass burners and only the highest quality components for assembly. *         All generators are individually pressure tested for leaks to ensure reliability. Additionally, multiple quality checks are performed and each unit is approved by highly qualified QA personnel.