Metal Chimneys

 
Normative references
 

• UNI EN 1856-1:2007 – Requirements for metal chimneys – Part 1: System chimney products
• UNI EN 1856-2:2006 – Requirements for metal chimneys – Part2: Metal flue liners and connecting flue pipes

 
The system of assessment and verification of constancy of performance (AVCP) used for UNI EN 1856-1 is either System 2+ or System 4 depending on whether we are dealing with system chimney products or terminals.
 
 
Tests

The product characterisation tests for the ce certificate of conformity to be mentioned on the label include:
 

• thermal performance
• mechanical performance
• flue gas tightness performance
• sootfire resistance
• durability performance