▎ 摘　　要

NOVELTY - The utility model claims a heating device of electric boiler, comprising a boiler main body; a water storage tank and a control unit; the boiler main body is provided with a graphene heating coating; the metal foil ring is embedded in the graphene heating coating; the graphene heating coating inner side is provided with a liner; the boiler main body is connected with the water storage tank through the pipeline; the liner of the boiler main body is connected with the heating pipe; the control unit is electrically connected with the graphene heating coating. It can realize the double functions of water storage and heating, simple structure, strong practicability, and good use value.