Boiler with boiler members for heating has O-rings fitting in connecting element inserted in hubs and resting radially against boring wall

摘要

The heating boiler consists of at least two boiler members (1) with a combustion chamber, hot gas passages and water cavities (3) connected through hubs (2), with O-rings (4) on the members or nipples (5) in the hub region. The O-rings are fitted in a connecting element able to be inserted in the hubs, and rest radially against a boring wall in the hub region.