Philippe Schutt wrote:If you break everything and replaced by a stainless steel tube, it must be double-walled insulated type and meet the criteria of distance to combustible materials and T ° surface.
The biafeu or other insulation system must have a Technical Notice. easy to check, they are accessible via the internet. The safety distance can be reduced, but there is one.
I have just been offered a proposal to demolish the chimney flue from the 1er floor and replace this part with an insulated duct with an elbow to avoid the beam.
the rest of the duct it the tube with simple, and it opens the conduit to the basement to put the hatch of sweeping and the recuperator of water.
the bill is quite heavy 5000 150 for a pipe in 80, if a cheek I decide to pellet it will be changed everything for XNUMX.