DIN EN 14471:2014-03

The objective of this European Standard is to evaluate the behaviour of system chimneys with plastic flue liners. A system chimney with a plastic flue liner may be a single wall chimney (only the plastic flue liner) or may be a double wall chimney or a flue liner with enclosure or with outer wall. The system chimney according to this standard can consist of a plastic liner only (for example, single wall) or a system with plastic inner liner (for example, concentric or with outer wall). The system chimney is defined by the manufacturer, whereas the requirements for the installation are defined by the national regulations of the member states. This European Standard specifies the performance requirements and test methods for system chimneys with plastic flue liners used to convey the products of combustion from appliances to the outside atmosphere under dry and wet conditions. This standard also specifies the requirements for marking, manufacturer's instructions and evaluation of conformity. This European Standard describes chimney components from which system chimneys can be assembled. This European Standard is not applicable to chimneys with sootfire resistance classification class G. This European Standard is not applicable for chimneys with the following classification: - corrosion resistance class 2 concerning natural wood; - corrosion resistance class 3; - pressure class N2. This European Standard is applicable to chimneys designed so that no condensate accumulation can occur, for example, with a minimum inclination of 3° to the horizontal. This European Standard is not applicable: - for system chimneys with plastic coated flue liners; - to structurally independent (free-standing or self-supporting) chimneys. Chimneys with components which need further processing during the installation to reach the final material properties are no system chimneys and therefore also not covered by this standard. This European Standard does not cover the requirements for horizontal terminals (as defined for C1 installation types in CEN/TR 1749) regarding aerodynamic behaviour, rainwater ingress and icing behaviour. The committee responsible for this standard is NA 005-11-38 AA "Kunststoffleitungen und Dichtungen (SpA zu CEN/TC 166/WG 4)" ("Plastic flue liners and seals (national mirror committee for CEN/TC 166/WG 4)") at DIN.