Concentric coaxial with polypropylene internal core, usually used for combustion air intake through the stainless steel counter chamber or, with the latter, creating a simple shaft to protect the chimney system: and so BI-CONDEX is born. Available exclusively with 80 and 60 mm internal diameter in PPs and 125 and 100 mm external diameter in AISI 304 stainless steel: a wide range for every job site need completes the system.
Re-piped Flue System with gasket
Flue-duct with gasket
Flue System resistant up to 5.000 Pa