.~.~ Radiant-type burner in or on wall (e.g., surface combustion, etc.)
(under subclass 159) Apparatus in which a chamber wall is permeated or swept by fuel or oxidizer and combustion takes place on the surface of the wall to cause the wall to become a glowing, heat radiating surface.
SEE OR SEARCH CLASS
126, Stoves and Furnaces,
92, for a direct heat radiating heating stove including an incandescent fire grate heated by gaseous or liquid fuel.
326+, for a porous radiant surface burner, per se; and
subclasses 347+ for a burner, per se, having an incandescing or reflecting component.