chimneys (1),where the chimney foot (1) in longitudinal direction (L) comprises a first end (4) and a second end (5),where the chimney base (1) at the first end (4) includes at least two, in particular bundling with the first end (4), first fixing areas (6), in particular casings,where the chimney foot (1) at the second end (5) includes at least two, in particular four, in particular bundled with the second end (5) of the chimney foot (1), second fixing areas (7), in particular casings,where the first and second fixing areas (7) each have a longitudinal range (L) from the outside (8), with the chimney foot (1) in longitudinal direction (L) having a length of 50 cm to 80 cm, preferably 60 cm to 70 cm, and preferably approximately 66 cm.
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