HEATING SYSTEM Russian patent published in 1999 - IPC

FIELD: energy saving technologies; individual heating system. SUBSTANCE: heating system operates as follows: cover is removed from air duct whose one end is tightly mounted in wind box other end is brought outside, then furnace is fired up and doors of fire box and wind box are closed. Room is heated by heat liberated from furnace; heated air cannot get into wind box. After heating, air duct is closed to avoid penetration of cold air into room. EFFECT: enhanced efficiency and high comfort. 1 dwg