Hey,

About 25 years ago I was on an Initial Attack Forest Fire Crew and we accessed a lot of fires by helicopter. We used to keep a "Fog Nozzle" in the kit bag and ran it off the Wajax Mark 3 fire pump. We would tie the nozzle up in a tree, run the pump on low and shower under this, there was little need for soap as it blasted the dirt right off you (and maybe a little skin).

On one of the last fires I worked I saw a shower unit at a base camp that the staff called a "Demand Heater". A portable fire pump pushed water from a nearby pond in to this unit and supplied the pressure. The water circulated through piping that was heated off a 20 lb propane tank and the water sprayed out of 2 showerheads on either side of the unit. I do not think this was a commercial unit, just something the Fire Staff developed in the off-season.

Mike