April 2019

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> The common duct for pressure tight Boiler called  3Cep, is a  vertical   and collective combustion    products    evacuation   system allowing the connection of several individual condensing boilers to a  sealed combustion circuit.

After laying the ducts, the companies perform a smoke test as a self-test. After the laying, the phases of dressing of the columns can generate duct breaks.


Rincent Laboratories agency of Bretagne carries out these measures of tightness before connecting the boilers to the duct.


These measurements are coupled to a smoke test. In case of proven leakage, a precise location can be made using an endoscopic camera.



Rincent BTP Services SAS

4 bis rue du Bois Briard

91080 Courcouronnes

Tél. +33 1 60 87 21 25

© 2020 Rincent Laboratoires