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Steam-Tube Oven

Steam-Tube Oven. An early system of oven (q.v.) heating, now mostly abandoned. It made use of hermetically sealed steel tubes, partially filled with water, one of whose ends projected into the fire box to convert the sealed-in water into pressurized high-temperature steam (q.v.), while the greater part of the tubes extended into the baking chamber (q.v.) and transmitted the heat of the steam to the baking product by radiation (q.v.).