FIELD: thermal power engineering.
SUBSTANCE: group of inventions relates to vertical heat exchangers. Economiser includes housing, flue pipe, flue pipes, at that, the housing is of cylindrical shape with perforation on the side wall. Economizer has one lower base with perforation for arrangement of heat-accumulating material on it. Base is equipped with gate valve to regulate volume of inlet and outlet air with handle.
EFFECT: technical result is increase in room heating efficiency and user protection against thermal radiation.
4 cl, 4 dwg
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