Which gas bottles, if any, can you change abroad? We had until recently 2 propane calor bottles Which we know you can't change abroad. We changed one to Gaslow refillable and now have an empty 6kg calor propane bottle, do we change this for a 4.5kg butane or a 907,again butane ? Can we change either of these abroad? We have the adaptor to go on a French bottle Which we have been told will fit either of the butane ones I just mentioned and we have the French and Euro adaptor for the Gaslow. We would like to carry a back up bottle in case we can't find a lpg garage to fill the Gaslow. We are travelling through France, Spain and Portugal.