Enrich areas of up to 230m2 with CO2 - grab a Pro-Leaf CO2 Generator. It burns liquid propane gas (LPG) or naural gas (NG) to produce CO2 + water vapour. They're super flexible - you can modify your CO2 output with ease. To do this, you simply cap off burners (4kW model) or use the handy selector switches (10kW). Each unit is complete with an electronic solenoid assembly - you can turn off CO2 generation at set times (with no gas leaks!). Runs on liquid propane gas (LPG) or Natural Gas (NG) Can modify CO2 output! Modify CO2 Output (Caps Included) No Pilot FlameThe intelligent electronic ignition system removes the need for one. Suspend It Or Stand ItSuspend it using rope ratchets...Stand it up on the expandable metal leg attachments. Solenoid Valve AttachmentThis allows you to turn the CO2 supply off & on. Never get a controller without a solenoid valve - you won't be able to shut off the gas supply completely. Tip-Over Safety SwitchThere's also a tip-over switch, which cuts power if the unit isn't upright. Minimal Carbon DepositsTo reduce carbon build ups, the brass burners have chrome lined tips. Even CO2 DispersionCO2 is pushed out of both sides of the unit, thanks to the unique 'V' shaped internal design. Why Add CO2?Plants use CO2 for photosynthesis (sugar production). If CO2 is restricted, so is sugar production.Plants can handle 1000ppm - 1200ppm of CO2. There's only around 400ppm - 450ppm in the air. Bringing that up to the optimum 1200ppm is one of the easiest ways to increases your yield by up to 20%!In summer, extra CO2 and also helps plants with heat stress by photosynthesising more! Kit Contains Gas regulator 3.66m hose Hanging hardware Metal feed 24V power adapter How To Use Connect the gasline Connect to your CO2 controller Full instructions are included. If capping off CO2 burners, always choose burners furthest from the igniter. Place an air circulator fan next to your generator to spread CO2 evenly in your room. Don't forget to keep the generator away from exhaust fans so - otherwise an CO2 will be sucked right back out of your grow room. The Tech - Liquid Propane Gas (LPG) 4kW 8kW 4 burners 8 burners Operating Pressure 11.0" WC / 2.8 kPa kW Rating 2.65 5.30 BTU Rating 9052 18104 CO2 Output p/H (SCF) 10.6 21.2 CO2 Output p/H (m3) 0.30 0.60 Weight 11.60kg Dimensions (mm) 380mm x 250mm x 510mm Coverage (approx) m3 115m3 230m3 The Tech - Natural Gas (NG) 4kW 8kW 4 burners 8 burners Operating Pressure 11.0" WC / 2.8 kPa kW Rating 2.65 5.30 BTU Rating 9052 18104 CO2 Output p/H (SCF) 10.6 21.2 CO2 Output p/H (m3) 0.30 0.60 Weight 11.60kg Dimensions (mm) 380mm x 250mm x 510mm Coverage (approx) m3 115m3 230m3