The model 18L34 hot-water diesel pressure washer from Water Cannon has a Kohler KD 420ES electric start 10 hp engine with 12-volt self-contained charging system. It can thaw frozen water lines and clean sewer lines or sediment ponds. It includes a stainless steel coil housing and Schedule 80 coil with one-piece molded insulation combustion chamber. The 12-volt DC oil-fired burner creates a 118-degree F temperature rise. It has an EZ Series General triplex ceramic plunger pump that delivers 4 gpm and 3,200 psi. Accessories include 50-foot hose, trigger gun, wand, chemical injector, five quick-connect nozzles, 9-gallon diesel tank and a four-wheel, powder-coated push-bar frame with 13-inch, no-flat, foam-filled tires. 800/333-9274; www.watercannon.com.