Water geyser with catalytic burner unit(s) in water chamber

摘要

The catalytic burner unit (17) flamelessly combusts a gas-air mixt. The burner unit is fitted in the top section of an aluminium@, or aluminium@ alloy cast body (2), vertically passing through the water chamber (1). Under the burner unit is located a ribbed after-switching passage (7) leading to a lower flue gas and condensate collector (13).Pref. the top section of the cast body is cylindrical and has wall cast ducts (6) for the supply of the gas-air mixt., which extend longitudinally. The pocket-shaped after-switching passage may be located under the cylindrical section for the burner unit retention.