Water supply control device of warm air blower

The utility model discloses a water supply control device for a warm air blower, relates to the technical field of vehicle heating, and mainly aims to meet the requirement for heating in a compartment on the premise of not influencing the overall performance of an engine and prevent the engine from influencing the power performance and the emission index of the engine due to supercooling. Comprising an engine, an electric water valve, a controller and a water pump, the electric water valve is arranged at a water outlet of the engine, and the engine is controlled by the electric water valve to supply water to the fan heater; a water pump is connected between a water outlet of the engine and a water inlet of the fan heater, and water output from the water outlet of the engine is input into the fan heater through the water pump; the controller is electrically connected with the electric water valve and used for controlling opening or closing of the electric water valve according to the water temperature of the e