FIELD: equipment for heating water and producing steam, possibly in heat supply and (or) hot water supply systems.
SUBSTANCE: boiler includes shaft type burner restricted by front, back, lateral, hearth and crown tube shields whose tubes provide joining of lower and upper manifolds. Tubes of hearth tube shield pass to lateral and further to crown tube shield having C-shaped configuration in cut-away view. In central part of burner coil tube steam generator with two rows of windows is arranged. Lower and upper manifolds are horizontal, they have the same configuration and in plan view they have H-beam configuration of cross section. Coil tube steam generator with two rows of windows has outlet comb formed of branch pipes for discharging steam to users. One of said branch pipe is communicated through pipeline with outlet branch pipe of boiler for supplying hot water to user.
EFFECT: simplified design, improved functional possibilities and efficiency of boiler.
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