Patent ID: 7120353

Claim:
An infrared heater comprised of two sets of parallel electrically-resistive bars, the corresponding bars of the respective sets being juxtaposed, electric conductors interconnecting corresponding ends of the bars, and connectors for applying 180 degrees out of phase electrical current to the respective sets of conductors so that current flows in opposite directions in corresponding bars at any given point in time, and a protrusioned infrared source comprised of a base adapted to be heated to uncomfortable-to-the-touch temperatures, and protrusions which project away from the base and present temperatures comfortable to the touch when the base is at uncomfortable temperatures, wherein the protrusioned-infrared-source base is finned and has valleys between the fins, and the valleys overlie corresponding electrically-resistive bars, and a panel for spacing the heater from any wall on which it may be mounted, wherein the panel is corrugated and its ridges underlie corresponding resistive bars, wherein the fins are separated by less than finger width, and a cabinet having a door mounting the heater on the inside.