HEATER CRAFT bulkhead heater. 12V. Consumption at 3 speeds: 3,9 - 5,0 - 7,7 A. Calorific yeld: 28.000 BTU/hour with water volume 11 l/min at 76° and with ambient temperature 15°. The kit includes a heater, a 4 position panel switch, electrical cable and screws. The system exploits the engine cooling water to convey heat to the cabin. 3-speed motor, simple and fast mounting.