The SK40005VH is a truly versatile machine. It can be trailer / truck mounted and is a real asset when electricity is not available. The industrial rated 570cc Vanguard twin-cylinder electric-start engine provides power to the pump and 12 VDC burner. The Stainless Steel wrapped 1/2" SCH 80 coil heats the water up to 250F. You will experience extended run times with the large 8.0 gallon gas and diesel tanks. An industrial rated belt-drive pump turns at lower RPM resulting in a cooler running and longer lasting pump compared to one that is direct drive. The machine is complete with gun/wand and 50' hose, quick connect nozzles, adjustable thermostat, pressure relief valve, burst disc and pressure sensitive unloader. Requires group 24 5550 CCA battery, not included.