FIELD: heating system.
SUBSTANCE: hot-water boiler is characterized by the presence of a heat exchanger, which is formed by separate flow-through pipes in one direction. Each tube has an elongated cross-section, the elongated sides of which define the oblong heat exchange surfaces opposite to each other, one of which faces the burner and the other towards the side wall of the boiler body. In this case, the tubes are arranged such that the elongated heat exchange surface of each tube facing the burner is at least partially overlapped by an adjacent tube. The heat exchange surface of each tube facing the burner and the adjacent tube of its heat exchange surface facing the side wall of the housing form a continuous passageway for the passage of flue gases from the combustion chamber to the circumferential flue gas duct formed between the heat exchanger and the side wall of the boiler body.
EFFECT: increasing the thermal capacity and simplicity of maintenance.
3 dwg
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