Just realised that our new ( to us!) Hymer 584 has a butane gas cylinder and we are planning to go away this weekend plus over Xmas - what temp does it stop working/ supplying gas at? I am aware that propane is the one to have in low temps - thinking of converting to Gaslow 11kg instead of paying to change cylinders ( £30 rental + £20 for gas). Can you recommend any fitters for the Berks area - near Reading? Weather forecast for the New Forest is 3 C overnight - will we have any problems?