I bought a camplux 6l water heater and I plan on putting a flue and venting it but I was wondering would it still run on butane? I have a 30mbar bulkead regulator and a bottle of campingaz 907 because it's mostly for Europe. It's says on I the instructions that it requires propane and a 37mbar regulator. I asked camplux and they said its ok on 30mbar regulstor propane but not butane. Would it not be as efficient or would it be dangerous?