Ready To Use - This is all-in-one built up model, ready to use, just attach it to your vehicle and connect to the exhaust and inlet pipe and your good to go; Specifications: Heater power: 1-5KW adjustable; Fuel: Diesel; Rated voltage:12V; Fuel consumption(L/h): 0.1-0.3; Working temperature of the heater:-40℃~+50℃