This device presents a portable seat design, suitable for use in home, automobile, boat, or the like, wherein both the back and the seat portion of the portable seat have embedded therein a heating element for powering by DC in a boat or automobile and by AC in a home. Separate theremostats are provided for the back and seat portion and the powering can be switchable from AC to DC, and the reverse, by using an AC/DC converter switch. The heating elements themselves are embedded or inserted to a rubber or plastic material such as styrofoam, enveloped by a waterproof rubber or plastic, which in turn is surrounded by a flexible plastic cushion material, and then a fabric material. Provisions are made for attaching the back and/or seat portions to an automobile seat or a chair in the home.