Hey guys I have been meaning to ask on here about this for some while but havnt found the time. As the weather is getting colder and this will be my first winter as a window cleaner, I need to prepare for those sub zero nights and wanted to ask what you all do and what you find is best. So really im asking about running a heater in the van just to keep the temperature up, insulating tanks and pipes, or simply remove the pump and water in the evening and re set up in the morning? Any tips and ideas would be appreciated. Anyway, thanks in advance.