FIELD: heat exchange.
SUBSTANCE: invention relates to heat engineering. Heating boiler comprising housing, supply and discharge lines for water and fuel with shutoff valves, heat-exchange detachable independent parallel sections with individual burner, common heat exchanger and gas outlet pipe. Each section is equipped with exhaust fan and primary heat exchanger. Primary heat exchangers of the sections are connected to the common secondary heat exchanger. At the inlet of heat exchange sections there are valves regulating gas supply.
EFFECT: invention is aimed at improving repairability, simplifying temperature control of heated water, as well as reducing heat losses during its transfer.
4 cl, 3 dwg
