
Ting Tong
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Looking at Mr WWs photo and by the description of the adapter, he is using a propane bottle to refill a bottle which is intended to hold butane. The propane exerts a greater pressure than the butane, but I don't think that matters as the Campingaz cylinder should be O.K. for this. There could be problems though with the cooker gas regulation and control due to the different gas. The same procedure is possible (I'm told) with large butane cylinders and appropriate fittings
Haha well spotted. Campingaz 907 cylinders are good for 30bar and propane is only 7bar, even at 50 deg c - that's why some 907s have 2.5kg propane / 3kg butane stamped on the base depending on the manufacturer for CG. I only fill to 2.2kg and find propane works fine in the cali. In fact, I was glad of it on our Alps trip in Feb because I could bbq outside.