Groen doesn’t supply a kit as such. However 12 Jet nozzle’s, A pilot stub, and a gas valve will do it. Problem is that to get the gas valve one has to have the serial number. You’ll have to call on that one. Parts Town has the pilot stub and the jet burners, but I’m not certain about the gas valve. It will be a bit pricey to convert. Over a $1000.
Thank you very much. Your answer has confirmed my worst fears and suspicions both in materials and cost. I don’t suppose there is a firm that deals with second hand parts ? As a not for profit organisation we could not afford $1,000+.