Blueprint Controllers CO2 Generator NG, CGNG-10In store Location: J6 Blueprint Controllers CO2 Generator NG, CGNG 10 For accelerated plant growth in spaces large and small, the Blueprint Controllers CO2 Generator NG turns natural gas into supplemental carbon dioxide with 10 preinstalled burners for a maximum output of 27. 7 cubic feet per hour of CO2 and 27,670 BTU. Selector switches operate two, six or all 10 burners at a time for enhanced three in one functionality not found on smaller units.