Installing twin wall flue through the house
Floor passage - Wooden floor
The picture right shows a chimney through a house with a wooden floor.
The connection from the single wall pipe to double wall can be solved in 2 ways:
- With the Adaptor to twin wall flue pipe, which goes into the enamel pipe (pictured below left).
- Insulated ceiling adaptor, where the enamel pipe goes into the adaptor, to give an esthetic connection (pictured below right).
The passage through the floor can be done with 2 ventilated firestop plates.
Installation norms set a minimum distance between the single wall enamel pipes and both the wooden roof and floor as 3 times the diameter (of the pipe) and never less than 375 mm. Below are the equivalent vertical separation values (height d):
Diameter Min distance
130/150/180 mm 375 mm
200 mm 395 mm
The minimum distance between the insulated chimney's outer wall and the combustible materials is 60 mm (G60).
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