We seem to have a similar problem to the Spinflo oven issue also in this section. Our van is only 2 years old, and on an earlier trip this year we found the oven refused to get hot. The flame was only a quarter of an inch high despite being set on 200, and after an hour the pie was barely warm, not hot and we could lift it out with bare hands. All other top burners and the fire were OK, but I knew the gas bottle was running low so thought that might be it. When I put a new bottle on the oven returned to normal, 3 inch high flame initially, dropping lower when it was up to temp. so I thought that had fixed it. However on our next journey last week, the problem returned with the new full bottle. All week we lived on microwaved foods and takeaways from the nearest town which was a 10 mile drive, I was not happy. Low and behold, I got back, put on the old bottle and everything is OK again! I took it in to the dealers who said there is no fault but I just know we better take lots of salads next time out. Any ideas? Could the act of taking of a bottle cause some valve to unstick? If I can pin point with some certainty where the problem lies I will just pay someone to replace the offending article rather than fanny about with trying to prove to dealers that there is a warranty problem.