Flue pipe
Flue pipe
Twin wall system


Metallic flue pipes Isoair

Flues double wall stainless – The ISOAIR system is composed of twin wall elements with circular section. It resists to corrosion and its maximum operating temperature is 200°C. The outer wall is manufactured in stainless steel AISI 304 while the inner wall is manufactured in stainless steel AISI 316L. Both walls have BA shining finish and longitudinal plasma welding. All ISOAIR elements have 10 mm of air insulation, a male-female socket, a heat-resistant silicon seal and a locking band to ensure mechanical tightness. Their outer wall can be manufactured in copper or painted (R.A.L. range) stainless steel. Flues double wall stainless

Twin wall flue system Isoair

The features of this system are quoted in the “Declaration Of Performance – D.O.P” (to download the D.O.P simply click on the image at the bottom of this page). A full comprehension of the D.O.P ensures a correct use of this product. Should you need further information please feel free to contact us.


The symbols P1, W, V2, clearly quoted both in the label affixed on the pipe and in the D.O.P. (Declaration Of Performance), unequivocally indicate that this particular flue system is definitely suitable for condensing state-of-the-art boilers.


Its installation and matching with various boilers must be left to skilled professionals that will respect the standards and laws in effect.
This product will be the installer’s or designer’s first choice since it can be perfectly matched with:

Flue pipe

Twin wall system ISOAIR

With seal

Flue pipe


Methane gas


Steams of cooking


Complies with UNI EN 14961-2

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