FIELD: energy.
SUBSTANCE: invention can be used in boilers of central heating systems houses and production premises. Essence of the invention is in the fact that boiler includes compartment premixing of gas-air mixture including a fan for air injection and tube feeding gas at the outlet of the fan, and also mounted further on the path of gas-air mixture gas burner combustion surface containing at least one metal perforated plate and metal knitted mesh made of heat-resistant material with high-temperature coating located further downstream of heat flow heat exchange chamber formed by ribbed pipes, and condensate collection compartment located under the heat exchanger, the first position to the burner finned tube heat exchanger is installed on a calculated distance.
EFFECT: such design allows increasing efficiency and reducing noise of operation.
2 cl, 2 dwg
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