I think people need to look at the amount of money the heaters are and what you are gonna get for your money,you will get the option to clean PVC cladding or timber to a much quicker and higher standard,you will be able to work in sub zero temps if you wish everything will remain frost free in your van regardless how cold it is outside. Hoses far more manageable day to day and that’s a big plus,above all you are able to trust the overall clean more if you clean quickly a lot of times with cold from the ground they look the same as with hot,in reality and I’ve prooved this when you do insides the results are very different.