Diesel Air Heater 12V 5000W LCD Switch Remote control 4 holes 2 Intake pipe 1 Exhaust pipe. The DIESEL AIR HEATER is 12V 5000W and 4 holes. Equipped with LCD switch and remote control, Can be used at high altitudes, 1500 meters above sea level. Can be used as a window glass defrost, but also for the cab, studio, cabin thermal insulation services.