Abstract: A electrical heater device for heating the interior of an automobile including a housing that is mounted to an automobile heater core. The housing has a top plate with an interior surface, a bottom plate and a pair of side plates. The housing has a first electrical wire that is positioned on the interior surface and is capable of extending along one of the side plates. The housing has a second electrical wire that is in series within the housing and coupled with the first wire at a housing wire end. Included is a plurality of heating coils that are positioned along the second electrical wire. Also, included is a switch mechanism that has a knob and a contact casing with a contact wire end of the first wire therein. The casing has a third electrical wire with a switching end and is coupled to a battery of the automobile. The knob allows an electrical bridge to form for transmission of an electric current to pass into the wire for charging of the plurality of heating coils.