FURNACE-AIR-HEATER Russian patent published in 1995 - IPC

FIELD: heating rooms. SUBSTANCE: furnace-air-heater has wall with the door for charging with fuel, wall with branch pipe for controlled smoke discharge, walls with piping members of which spaces are in communication with the ambient air, baffle that separates the furnace into two unequal spaces interconnected from the side of the wall with the door, and two air ducts constructed as pipes having openings. The open faces of the pipes enter the space of the piping member. The closed face is positioned in the vicinity of the baffle. The furnace-air-heater is made up as a octahedral prism. One of the bases is provided with the door for charging fuel and branch pipe for controlled supplying of air. The other base is provided with the branch pipe for controlled smoke discharge. The side walls facing each other are provided with piping members arranged in a row. The other two walls have grooves for receiving the piping members. EFFECT: enhanced efficiency. 18 cl, 15 dwg