I am looking at the requirements to install heating I. The camper next year. At the moment there is a carver cascade 2 which only works on mains. These seem relatively simple and ecenomical to repair and I have found a chap who does recon parts... For heating there is nothing and we have the portable gas heater that works on cannisters. This heats the van very quickly but gets through at least 1 cannister a day. There is very limited space and ideally what I would like to do is replace the cascade with something that can provide hot water and heating from the same 'flame' either diesel or gas.. Does such a thing exist? If so where can I start researching them and if not what would you reccomend It is only a transit lwb hi top and there is no shower right now but I will consider fitting one once the how water is sorted.