主权项 |
1. An assembly for rising gases, the assembly comprising:
a bearing; a flue base including gas inlets; a flue defining a flue axis, the flue being rotatably coupled to the bearing; and an axially rotatable and tiltable through-duct, between the flue base and the flue, the through-duct being closed off by a labyrinth or brush sealing, in which the flue is rotated about the flue axis.
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