ROS Chimneys obtains the class D tightness certificate

The ROS Chimneys range of double wall modular chimneys has obtained excellent results in the overpressure and depression tightness tests carried out according to the EN 12237 standard, obtaining the class D tightness certificate.

Made of stainless steel and with 25 mm rock wool insulation, our double wall ducts and accessories are especially suitable for domestic and industrial boilers, and for all types of stoves and fireplaces. In addition, our double wall pipes are suitable for installation in industrial kitchens, since they are fire resistant for 30 minutes.

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