| 摘要 |
Combustion-chamber shaft 1 of a water heater, with a heat exchanger 2 mounted thereon, in which the combustion- chamber shaft is designed as a double jacket, through which a medium to be heated flows, and the interior of the double jacket is connected to the heat exchanger. The combustion-chamber shaft 1 consists of die-cast mouldings 10, 11, on which functional parts, such as connections 3, 3', an inspection-glass holder and the like, are integrally formed in one piece. <IMAGE> |
