Robust, corrosion-resistant, self-supporting device chassis, impact-resistant device-cover made of ABS, triplex-piston pump with brass pump head, high-performance ceramic piston, stainless-steel valves, leakage-return, Etronic II controls: “start-stop system with switch-off delay, total-switch-off after 20min, OPH-counter with service infromation, low-water cut-off, low-fuel cut-off, optical flame monitoring with photoelectric cell and fault indicator-light, steam-stage” 2 motors system (independent of the direction of rotation) separately for h.p.-pump and heating, unloader safety-valve c/w. infinitely variable pressure and quantity regulation, 4 large rubber wheels for rough terrain, with a patented wheel brake 2-way, storage possibility for all accessories, integrated diesel-tank 25l, integrated detergent-tank 20l, rotary on-off switch robust and lockable, 7,5m connection cable, removable ergonomic drawbar.