Does anyone have experience of using X=line hot boxes a or any other HOT BOXES diesel to heat the water. Have been using cowboy shower units for years but I have a lot of commercial retirement villages where I am miles from the van. Recently changed to another model, didn't tighten up the gas hose to the unit enough, could smell gas but fired it up and it caught fire. Have 3 lads that work with me, so not good at all and now looking to go down HOT BOX options. Again like everything these days seems expensive with a 2 man set up being £4500 from Xline and I imagine Ionics is even more. Any advice welcome. Thanks.