well reading through all the posts.. it does get a bit confusing. So if someone could post a DIY guide that would be great.. as there is 10 pages to look through.. and most are asking the same questions..
However, i get the jist of it,
get the L5,
change the regulator for a uk spec version - hook up the water in and out, and test for gas leeks, and your set to go.
Get a LPG gas sticker for the van/car as its a legal requirement i believe.
If you have your doors open when you work, then no need for a flue if you, close them then consider getting one.. dont want CO gas in your van!
Need a bit more info on the thermo regulator whatsitcalled, to stop auto shut off.. that the bit im confused on..