General Information

Abstract

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. It 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, e.g. 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.

Status
Published
Publication Date
13-Jan-2015
Technical Committee
CEN/TC 166 - Chimneys
Current Stage
9093 - Decision to confirm - Review Enquiry
Start Date
06-Jun-2019
Completion Date
17-Sep-2026

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Standard

EN 14471:2014+A1:2015

English language (96 pages)
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Overview

EN 14471:2013+A1:2015 (identical to EN 14471:2013+A1:2015) sets out performance requirements and test methods for system chimneys with plastic flue liners. The standard covers components from which such system chimneys are assembled and defines requirements for conveying combustion products from appliances to the outside under both dry and wet conditions. It also specifies requirements for marking, manufacturer's instructions and evaluation of conformity.

Note: the standard applies to chimneys designed to avoid condensate accumulation (e.g., a minimum inclination of to the horizontal) and explicitly excludes several cases (see Key exclusions).

Key topics and technical requirements

The standard addresses the following technical areas and test methods:

  • Classification and designation
    • Temperature, pressure, sootfire resistance, condensate resistance, corrosion resistance, thermal resistance, reaction to fire, outer wall classes, and location.
  • Performance requirements
    • Mechanical and thermal load resistance, stability, wind load for exposed components, fire resistance, gas tightness, recycling considerations, and flow resistance.
  • Materials and durability
    • Characterization of polymer materials, long‑term thermal and condensate resistance, wet/dry cycling, UV/weathering resistance, freeze–thaw, seals and sealants, and geometrical stability.
  • Test methods and annexes
    • Detailed testing procedures for mechanical/thermal load, long‑term exposure, thermal resistance calculations, UV resistance, and terminal performance (flow resistance, aerodynamic behaviour).
  • Product information and marking
    • Minimum information for installers and users, manufacturer instructions, and requirements for factory production control and Assessment and Verification of Constancy of Performance (AVCP).

Key exclusions (not applicable under this standard):

  • Chimneys with sootfire resistance classification class G
  • Certain corrosion/pressure classifications (e.g., corrosion resistance class 2 concerning natural wood, class 3; pressure class N2)
  • Plastic coated flue liners
  • Structurally independent (free‑standing/self‑supporting) chimneys
  • Components requiring further processing during installation to reach final material properties
  • Horizontal terminals regarding aerodynamic behaviour, rainwater ingress and icing (see CEN/TR 1749 for C1 installations)

Applications and practical value

SIST EN 14471 is applicable when designing, manufacturing, testing, specifying or installing system chimneys with plastic flue liners used for heating appliances, boilers and similar combustion equipment. Practical uses include:

  • Guiding product development and quality control for manufacturers
  • Defining laboratory test programs for conformity assessment
  • Informing technical specifications in procurement and building projects
  • Helping installers and specifiers select compliant chimney systems and understand marking/instruction requirements

Who should use this standard

  • Chimney and flue system manufacturers
  • Independent test laboratories and certification bodies
  • Building services engineers, architects and installers
  • Product compliance and quality managers
  • Regulatory authorities and specifiers

Related standards

  • EN 14471:2013+A1:2015 (CEN technical standard)
  • CEN/TR 1749 (referenced for horizontal terminal definitions and C1 installation types)

Keywords: SIST EN 14471, system chimneys, plastic flue liners, chimney standards, test methods, performance requirements, marking, manufacturer's instructions, condensate resistance.

Relations

Effective Date
19-Jan-2023
Effective Date
22-Oct-2014
Effective Date
25-Aug-2026
Effective Date
15-Jul-2026
Effective Date
01-Apr-2026
Effective Date
09-Feb-2026
Effective Date
04-Feb-2026
Effective Date
28-Jan-2026
Effective Date
28-Jan-2026
Effective Date
28-Jan-2026
Effective Date
28-Jan-2026
Effective Date
28-Jan-2026
Effective Date
28-Jan-2026
Effective Date
28-Jan-2026
Effective Date
28-Jan-2026

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Standard

EN 14471:2014+A1:2015

English language (96 pages)
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Frequently Asked Questions

EN 14471:2013+A1:2015 is a standard published by the European Committee for Standardization (CEN). Its full title is "Chimneys - System chimneys with plastic flue liners - Requirements and test methods". This standard covers: 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. It 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, e.g. 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.

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. It 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, e.g. 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.

EN 14471:2013+A1:2015 is classified under the following ICS (International Classification for Standards) categories: 91.060.40 - Chimneys, shafts, ducts. The ICS classification helps identify the subject area and facilitates finding related standards.

EN 14471:2013+A1:2015 has the following relationships with other standards: It is inter standard links to EN 14471:2013, EN 14471:2013/FprA1, ISO 2859-1:1999, EN ISO 14021:2026, EN ISO 179-1:2026, EN 60529:1991, EN ISO 11925-2:2026, EN ISO 11357-3:2025, EN ISO 9969:2016, EN ISO 75-1:2020, EN ISO 1183-1:2025, EN ISO 178:2019, EN ISO 527-1:2019, EN 13501-2:2023, EN ISO 179-1:2023. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

EN 14471:2013+A1:2015 is associated with the following European legislation: EU Directives/Regulations: 305/2011; Standardization Mandates: M/105. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.

EN 14471:2013+A1:2015 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.

Standards Content (Sample)


2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Abgasanlagen - Systemabgasanlagen mit Kunststoffinnenrohen - Anforderungen und PrüfungenConduits de fumée - Système de conduits de fumée avec conduits intérieurs en plastique - Prescriptions et méthodes d'essaiChimneys - System chimneys with plastic flue liners - Requirements and test methods91.060.40Dimniki, jaški, kanaliChimneys, shafts, ductsICS:Ta slovenski standard je istoveten z:EN 14471:2013+A1:2015SIST EN 14471:2014+A1:2015en,fr,de01-marec-2015SIST EN 14471:2014+A1:2015SLOVENSKI
STANDARDSIST EN 14471:20141DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 14471:2013+A1
January 2015 ICS 91.060.40 Supersedes EN 14471:2013English Version
Chimneys - System chimneys with plastic flue liners - Requirements and test methods
Conduits de fumée - Système de conduits de fumée avec conduits intérieurs en plastique - Prescriptions et méthodes d'essai
Abgasanlagen - Systemabgasanlagen mit Kunststoffinnenrohen - Anforderungen und Prüfungen This European Standard was approved by CEN on 14 September 2013 and includes Amendment 1 approved by CEN on 3 November 2014. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 14471:2013+A1:2015 ESIST EN 14471:2014+A1:2015

Test methods for characterization . 46 Annex B (informative)
Examples of characterization . 48 Annex C (normative)
Test methods to determine the effect to long-term thermal load, long-term condensate exposure, wet/dry cycling and resistance to UV . 49 Annex D (normative)
Simplified calculation of thermal resistance for circular flues . 50 SIST EN 14471:2014+A1:2015

Method for applying an evenly distributed load (horizontal) . 52 Annex F (informative)
Resistance to UV . 53 Annex G (normative)
Terminals . 54 G.1 Characteristics of a terminal . 54 G.1.1 General . 54 G.1.2 Types of terminals . 54 G.1.2.1 Type I . 54 G.1.2.1.1 General . 54 G.1.2.1.2 Type Ia . 54 G.1.2.1.3 Type Ib . 54 G.1.2.2 Type II . 54 G.1.2.3 Type III . 54 G.1.3 Wind direction characteristics . 54 G.2 Requirements . 55 G.2.1 General . 55 G.2.2 Flow resistance of terminals Type I, II and III . 55 G.2.3 Aerodynamic properties of terminals Type II and III . 55 G.2.3.1 Terminal Type II . 55 G.2.3.2 Terminal Type III. 55 G.2.4 Rain water ingress . 56 G.2.5 Icing behaviour . 56 G.3 Characteristics of the terminal . 56 G.3.1 Flow resistance . 56 G.3.1.1 Flue duct for terminals Type I, II, III. 56 G.3.1.2 Air duct for terminal Type III . 56 G.3.2 Aerodynamic properties . 57 G.3.2.1 Wind velocity pressure of a terminal Type II – for non room-sealed and room-sealed appliances . 57 G.3.2.2 Wind velocity pressure of a terminal, Type III – for balanced flue applications . 58 G.3.2.3 Recirculation factor of a terminal, Type III, (for room sealed appliances) . 58 G.3.3 Rainwater ingress . 59 G.3.4 Icing behaviour . 59 Annex H (normative)
Test methods for flow resistance . 60 H.1 For terminal Type I, II and III, test method for flow resistance . 60 H.1.1 Test apparatus . 60 H.1.2 Test sample . 60 H.1.3 Measurement parameters . 60 H.1.4 Test condition . 61 SIST EN 14471:2014+A1:2015

Test methods for wind effects on pressure . 64 I.1 For terminal Type II, test method for wind velocity pressure . 64 I.1.1 Test apparatus . 64 I.1.2 Test sample . 64 I.1.3 Measurement parameters . 64 I.1.4 Test condition . 65 I.1.5 Test procedure . 65 I.1.6 Test result. 65 I.2 For a terminal Type III, test method for wind velocity pressure . 65 I.2.1 Test apparatus . 65 I.2.2 Test sample . 66 I.2.3 Measurement parameters . 66 I.2.4 Test condition . 67 I.2.5 Test procedure . 67 I.2.6 Test result. 67 Annex J (normative)
Test methods for wind effects on recirculation . 68 J.1 For terminal Type III, test method for recirculation . 68 J.1.1 Test apparatus . 68 J.1.2 Test sample . 68 J.1.3 Measurement parameters . 68 J.1.4 Test condition . 68 J.1.5 Test procedure . 69 J.1.6 Test result. 69 Annex K (normative)
Test method for rain water ingress . 70 K.1 For terminal Type Ib, II and III, test method without wind . 70 K.1.1 Test apparatus . 70 K.1.2 Test sample . 70 K.1.3 Measurement parameters . 70 K.1.4 Test condition . 70 K.1.5 Test procedure . 71 K.1.6 Test result. 71 K.2 For terminal Type Ib, II and III, test method with wind . 72 K.2.1 Test apparatus . 72 K.2.2 Test sample . 73 K.2.3 Measurement parameters . 73 K.2.4 Test condition . 73 SIST EN 14471:2014+A1:2015

Test method of icing effects . 76 L.1 For terminal Type II and III, test method for icing behaviour . 76 L.1.1 Test apparatus . 76 L.1.2 Test sample . 76 L.1.3 Measurement parameters . 76 L.1.4 Test condition . 77 L.1.5 Test procedure . 77 L.1.6 Test result . 77 Annex ZA (informative)
Clauses of this European Standard addressing the provisions of the EU Construction Products Regulation . 79 ZA.1 Scope and relevant characteristics . 79 ZA.2 Procedure for AVCP of system chimneys with plastic flue liners and terminals . 81 ZA.2.1 Systems of AVCP . 81 ZA.2.2 Declaration of performance (DoP) . 88 ZA.2.2.1 General . 88 ZA.2.2.2 Content . 88 ZA.2.2.3 Example of DoP . 89 ZA.3 CE marking and labelling . 93 Bibliography . 96
1) There is no sufficient knowledge on data for flue gas condensate from appliances fired with natural wood.
The material test does not include the effects of the performance of the chimney system resulting in stress etc. on the individual components. 3.4 flue passage for conveying the products of combustion to the outside atmosphere 3.5 flue gas gaseous portion of the products of combustion conveyed in a flue 3.6 products of combustion products resulting from the combustion of fuel (gaseous, liquid and solid constituents) 3.7 flue liner wall of a chimney consisting of components the surface of which is in contact with products of combustion [SOURCE: EN 1443:2003, 3.5] 3.8 coated flue liner flue liner where material is applied to the inner surface of the flue liner to change the surface properties 3.9 chimney structure consisting of a wall or walls enclosing a flue or flues 3.10 chimney component any part of a chimney [SOURCE: EN 1443:2003, 3.7] 3.11 chimney fitting chimney component conveying products of combustion except a chimney section SIST EN 14471:2014+A1:2015
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