Abstract: Electric heater assemblies to encircle and warm hermetic compressor housings are fabricated by the selection of a sheathed tubular heating element of a length of the same order of magnitude as the circumference of the compressor housing to be encircled and a bend is introduced near the end of the selected element. An elongated tensioning member and the element bend are positioned closely adjacent one another and a mass of non-metallic material molded about the element bend and a portion of the tensioning member to join the member to the selected element. Opposite ends of the tensioning member may be joined to the heating element near the opposite ends thereof by introducing a similar bend near the end opposite the one end of the selected element and similarly juxtaposing the tensioning member and bend and thereafter molding a further mass about the element bend and tensioning member so as to form a loop for encircling the housing.

Abstract: A radiant heating device and a method of forming such a device are disclosed wherein a metal heat radiating plate has a first surface for forming a front surface of the heating panel with the surface opposite that first surface having an electrically insulated sheet heating element affixed thereto. The plate and heating element are embedded in a flowable material to cover the heating element and the plate edges about substantially the entire periphery of the plate while leaving the plate front surface substantially material free and that flowable material solidified to form an electrically and thermally insulating frame for supporting the plate and the heating element.