20,000 BTU High Output Auxiliary Heater 12 Volt 3 Speed Fan for Delivery Vehicle, Bus, Van Perfect for Delivery Vehicles, Bus, Vans, Hot Rods, Muscle Cars Includes: Heater, Mounting Brackets, Installation Kit w/ switch, Instruction Sheet Measures: 9 1/2" X 6 1/2" X 9" All Steel Powder Coated w/ Directional Louver Features: Hot water forced air heat; 3 Speed Fan; 5/8" Connections Fast & FREE shipping!