Abstract: A portable therapeutic heat device having an electrical heating pad suitable for positioning against a users back and having electical connector means for connecting the pad to any desired electrical power source, wherein the device has pad support members affixed to the pad, preferably removable for vertical adjustment, and having upper hook-like segments adapted to hook over the rear of a seat or over a users shoulders such that the pad will be retained in a desired position or posture with respect to the users back.