I'm a fan of meths and have a secondhand Swedish army trangia-style stove for a tenner from ebay. you can get meths anywhere, and you can fly with the stove if necessary and buy meths at the other end. it is also windproof and silent. it is slow but when camping that is not an issue - i set it up on arrival then put up the tent, and the water is boiling soon enough. in the mornings i set it up and go off to the loos, then on my return it is boiling away merrily. getting those gas cylinders with the threads in france and spain is really hard to do.