Hotbox CO2 Generators enrich the atmosphere and encourage plant growth. There are three models to choose from, suitable for growing areas ranging from 20m² to 4000m² Increase CO2 to 1000 ppm – achieve optimum growing environment Low running cost – runs on propane or natural gas (all of the CO2 Generator are supplied as propane with a conversation kit for natural gas) Easy installation – simply attach to supply, plug in and switch on Robust, lightweight construction – durable, yet easy to move around
