The certification IS MANDATORY!
Therefore, according to the EUROPEAN STANDARDS, the manufacturing companies must INDICATE THE PERFORMANCE of their products

• UNI EN 1856-1: SINGLE WALL OR DOUBLE WALL FLUE PIPES SYSTEMS
• UNI EN 1856-2: CONNECTION PIPES

THERE CANNOT BE ON THE MARKET UNMARKED FLUE PIPES

USE OF CERTIFIED products    ELIMINATES THE RESPONSIBILITY OF INSTALLERS to which it remains EXCLUSIVELY LIABILITY FOR ASSEMBLY

“UNI EN 1856-1“
Identifies the harmonized European standard that obliges manufacturers to perform certain tests to identify the performance of a chimney system.

A significant aspects of the CE mark IS OBLIGATION of the manufacturers to highlight LIMITS AND PERFORMANCE OF THE CHIMNEY

• Temperature
• Resistance to pressure
• Resistance to condensation
• Corrosion resistance of condensate
• Technical speciations of the material
• Resistance to soot fire
• Distance from combustible materials

EXAMPLE OF PRODUCT DESIGNATION

EN 1856-1 T600 H1 W V2 L50040 G75

EN 1856-1: Reference standard
T600: IT IS THE TEMPERATURE LEVEL EXPRESSED IN CENTIGRADE DEGREES
H1: IS THE GAS SEAL LEVEL – see table
W: Identifies suitability for dry or wet operation
“w = wet” – “d = dry”
V2 : Corrosion resistance level, THE REGULATION DEFINES THE CORROSION RESISTANCE LEVEL
L50040: L50 IDENTIFIES THE TYPE OF MATERIAL CONSTITUTING THE WALL IN CONTACT WITH THE SMOKES and
040 identifies the thickness of the wall in contact with the fumes in tenths of a millimeter (040 = 0.4 mm = 4/10 mm).
G75: IDENTIFIES SOOT RESISTANCE TO FIRE
a chimney system that shows in the designation “O” IT IS TESTED FOR SOOT FIRE
a chimney system that shows in the designation “G ” IT IS NOT TESTED FOR SOOT FIRE
“75” indicates the distance in mm from combustible materials.