prEN 1856-1

SLOVENSKI STANDARD
oSIST prEN 1856-1:2019
01-september-2019
Dimniki - Zahteve za kovinske dimnike - 1. del: Proizvodi za sistemske dimnike
Chimneys - Requirements for metal chimneys - Part 1: System chimney products
Abgasanlagen - Anforderungen an Metall- Abgasanlagen - Teil 1: Bauteile für System-
Abgasanlagen
Conduits de fumée - Prescriptions pour les conduits de fumée métalliques - Partie 1 :
Composants de systèmes de conduits de fumée
Ta slovenski standard je istoveten z: prEN 1856-1
ICS:
91.060.40 Dimniki, jaški, kanali Chimneys, shafts, ducts
oSIST prEN 1856-1:2019 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 1856-1:2019

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oSIST prEN 1856-1:2019


DRAFT
EUROPEAN STANDARD
prEN 1856-1
NORME EUROPÉENNE

EUROPÄISCHE NORM

May 2019
ICS 91.060.40 Will supersede EN 14989-1:2007, EN 14989-2:2007,
EN 1856-1:2009, EN 1859:2009+A1:2013
English Version

Chimneys - Requirements for metal chimneys - Part 1:
System chimney products
Conduits de fumée - Prescriptions pour les conduits de Abgasanlagen - Anforderungen an Metall-
fumée métalliques - Partie 1 : Composants de systèmes Abgasanlagen - Teil 1: Bauteile für System-
de conduits de fumée Abgasanlagen
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 166.

If this draft becomes a European Standard, 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.

This draft European Standard was established by CEN 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, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.


EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 1856-1:2019 E
worldwide for CEN national Members.

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prEN 1856-1:2019 (E)
Contents Page
European foreword . 5
Introduction . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 7
4 Product characteristics . 13
4.1 General . 13
4.2 Dimensions and tolerance . 13
4.3 Mechanical resistance and stability . 14
4.3.1 Compressive strength . 14
4.3.2 Tensile strength . 14
4.3.3 Lateral strength . 14
4.4 Reaction to fire . 15
4.5 Resistance to fire . 15
4.5.1 Resistance to fire (external to external) . 15
4.5.2 Sootfire resistance classes . 15
4.5.3 Sootfire resistance . 15
4.5.4 Thermal performance under normal operating conditions . 15
4.6 Hygiene, health and environment, gas tightness . 16
4.7 Safety in use. 17
4.7.1 Accidental human contact . 17
4.7.2 Thermal resistance . 17
4.7.3 Condensate resistance (vapour phase) . 17
4.7.4 Condensate penetration (liquid phase) . 18
4.7.5 Rainwater penetration resistance . 18
4.7.6 Flow resistance of the chimney, fittings and terminals . 18
4.7.7 Other characteristics for terminals . 18
4.8 Durability . 19
4.8.1 Durability of the flue liner against corrosion . 19
4.8.2 Freeze-thaw resistance . 22
4.8.3 Elastomeric seals in flue liners . 22
4.9 Specific characteristics for concentric and multi-served chimneys and their
terminals . 22
4.9.1 General . 22
4.9.2 Single and multi-served concentric chimney . 23
4.9.3 Terminals . 23
4.9.4 Balanced flue terminals, for single and multi-served chimneys . 24
4.9.5 Non-balanced terminals for multi-served chimneys . 28
5 Testing, assessment and sampling methods specific to metal chimneys . 28
5.1 General . 28
5.2 Compressive strength . 28
5.2.1 Sections and Fittings . 28
5.2.2 Chimney support . 30
5.3 Tensile strength . 32
5.3.1 Test assembly . 32
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5.3.2 Test procedure and results . 32
5.4 Lateral strength . 34
5.4.1 Fittings in non-vertical orientation . 34
5.4.2 Wind load . 34
5.5 Thermal performance test . 35
5.5.1 General . 35
5.5.2 Test structure . 35
5.5.3 Test chimney . 36
5.5.4 Vibration conditioning. 36
5.6 Corrosion resistance test . 36
5.7 Rainwater ingress for terminals . 36
5.8 Flow resistance test . 36
5.8.1 Flow resistance test for terminals . 36
5.8.2 Flow resistance test for fittings . 38
5.9 Flow resistance test for air supply ducts of the concentric chimneys . 38
5.10 Wind effect test . 38
5.11 Resistance to penetration by foreign objects . 39
5.11.1 Test assembly . 39
5.11.2 Procedure . 39
5.11.3 Results . 39
5.12 Vertical load on the terminal . 39
5.12.1 Test assembly . 39
5.12.2 Procedure . 39
5.12.3 Test results . 39
5.13 Thermal resistance for the air intake of the chimney and terminal . 39
5.13.1 Procedure . 39
5.13.2 Calculation of the thermal resistance of the flue duct . 40
5.13.3 Calculation of the thermal resistance between the supply air and the ambient air . 44
6 Assessment and verification of constancy of performance – AVCP . 46
6.1 General . 46
6.2 Type testing . 46
6.2.1 General . 46
6.2.2 Test samples, testing and compliance criteria . 47
6.3 Factory production control (FPC) . 52
6.3.1 General . 52
6.3.2 Characteristics . 53
6.3.3 Product specific characteristics . 55
6.3.4 Initial inspection of factory and of FPC . 55
6.3.5 Continuous surveillance of FPC . 56
6.3.6 Procedure for modifications . 56
6.3.7 One-off components, pre-production products (e.g. prototypes) and components
produced in very low quantity . 56
7 Product classification and designation . 57
7.1 Manufacturer's instructions . 57
7.2 Minimum information to be included in the manufacturer’s documentation and
instructions . 57
7.3 Classification and designation . 59
8 Marking, labelling and packaging . 59
8.1 Chimney sections, fittings or terminals . 59
8.2 Chimney plate . 60
8.3 Packaging . 60
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Annex A (normative) Corrosion test. 61
A.1 Sampling and preconditioning . 61
A.2 Test methods . 62
A.3 Evaluation . 64
A.4 Test report . 66
Annex B (normative) Sampling for factory production control . 71
B.1 Incoming material . 71
B.2 In-process inspection . 72
Annex C (normative) Factory production control . 73
C.1 General . 73
C.2 Insulation material . 73
C.3 Metals, including coatings . 73
C.4 Supports . 73
C.5 Seals and sealants . 73
C.6 Manufacturing checks . 74
Annex D (informative) Method for applying an evenly distributed load (horizontal) . 75
Annex E (normative) Simplified calculation of thermal resistance for circular flues . 76
Annex ZA (informative) Relationship of this European Standard with Regulation (EU)
No.305/2011 . 78
ZA.1 Scope and relevant characteristics . 78
ZA.2 System of Assessment and Verification of Constancy of Performance (AVCP) . 81
ZA.3 Assignment of AVCP tasks . 82
Bibliography . 84

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prEN 1856-1:2019 (E)
European foreword
This document (prEN 1856-1:2019) has been prepared by Technical Committee CEN/TC 166
“Chimneys”, the secretariat of which is held by ASI.
This document is currently submitted to the CEN Enquiry.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association.
For relationship with EU Regulation(s), see informative Annex ZA, which is an integral part of this
document.
This document will supersede EN 1856-1:2009, EN 1859:2009+A1:2013, EN 14989-1:2007 and
EN 14989-2:2007.
The main changes to EN 1856-1:2009 are:
— adoption of the template for harmonized standards under the EU Construction Products Regulation
(305/2011/EU) meaning a clearer definition of the Scope, rewording in Clause 4 "Product
characteristics", Clause 5 "Testing, assessment and sampling methods" and Clause 7 "Product
classification and designation", and adoption of the template for Clause 6 "Assessment and
verification of constancy of performance";
— adoption of a new revised Annex A "Corrosion tests".
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Introduction
The generic word "chimney", when used in this document, refers to systems with metallic liner used to
convey the products of combustion from combustion appliances to the outside atmosphere, and thus
includes all other terms of common use in the trade, such as vents, flues, shafts, exhaust systems, ducts,
etc.
For addressing the durability against corrosion, a unique corrosion test has been introduced in Annex A;
the material table with minimum material specification of the former edition has been taken over.
This document describes chimney components, from which system chimneys can be assembled.
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1 Scope
This document specifies the characteristics of performance for single and multi-wall system chimney
products with rigid metal liners (chimney sections, chimney fittings and terminals, including supports)
with nominal diameter up to and including 1 200 mm, used to convey the products of combustion from
appliances to the outside atmosphere.
This document also specifies characteristics for the air supply ducts of concentric chimneys for room-
sealed application. Additionally, it specifies the characteristics for marking, manufacturer's instructions,
product information and assessment and verification of constancy of performance (AVCP). Metal liners
and metal connecting flue pipes not covered here are included in prEN 1856-2:2019.
This document does not apply to structurally independent (free standing or self-supporting) chimneys.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 573-3:2013, Aluminium and aluminium alloys – Chemical composition and form of wrought products –
Part 3: Chemical composition and form of products
EN 1443:2019, Chimneys – General requirements
EN 10088-1:2014, Stainless steels – Part 1: List of stainless steels
EN 13216-1:2019, Chimneys — Test methods for system chimneys — Part 1: General test - Methods
1)
EN 13384-1:2015, Chimneys – Thermal and fluid dynamic calculation methods – Part 1: Chimneys serving
one appliance
EN 14241-1:2013, Chimneys — Elastomeric seals and elastomeric sealants — Material requirements and
test methods — Part 1: Seals in flue liners
EN 14471:2013+A1:2015, Chimneys — System chimneys with plastic flue liners — Requirements and test
methods
EN 60068-2-57:2013, Environmental testing — Part 2-57: Tests — Test Ff : Vibration — Time-history and
sine-beat method (IEC 60068-2-57:2013)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 1443:2019 and the following
apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp

1) This document is impacted by the amendment EN 13384-1:2015/prA1.
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prEN 1856-1:2019 (E)
3.1
appliance outlet
position where the products of combustion exit from the appliance
3.2
balanced flue terminal
terminal unit consisting of a flue duct, which may be provided with a cover, and an air supply duct for the
connection of a room sealed appliance
3.3.1
chimney
structure consisting of a wall or walls enclosing a flue or flues conveying the products of combustion into
the outside atmosphere
Note 1 to entry: The generic word “chimney”, when used in this standard, refers to chimneys used to convey the
products of combustion from any combustion appliance to the outside atmosphere, and thus includes all other
terms of common use, such as: vents, flues, shafts, exhaust systems, flue ducts, etc.
[SOURCE: EN 1443:2019, 3.5]
3.3.2
chimney accessory
additional flue gas carrying component added to a chimney or a connecting flue pipe to perform a
particular function
3.3.3
chimney component
any part of a chimney, of a flue liner or of a connecting flue pipe
3.4
chimney designation
shortened description of a specific chimney type, which clearly distinguishes it from any other types
3.5
chimney fitting
component of a chimney, of a flue liner or of a connecting flue pipe conveying products of combustion
except a section
3.6
chimney section
straight chimney component of a flue liner or of a connecting flue pipe, conveying products of combustion
3.7
cladding
additional non-structural outer wall around a chimney for protection against heat transfer or weathering,
or for decorative purposes
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3.8
concentric chimney
flue duct fully surrounded by the air supply duct
3.9
connecting flue pipe
component or components connecting the heating appliance outlet and the chimney
[SOURCE: EN 1443:2019, 3.8]
3.10
corrosion load
combination of condensate and corrosion resistance classes necessary for the different operating
conditions and types of fuel
3.11
custom built chimney
chimney that is installed or built on-site using a combination of compatible chimney components that
may be from one or different sources
[SOURCE: EN 1443:2019, 3.20]
3.12
design load (DL)
load which a chimney or its components are designed to be subjected to, under normal operating
conditions, when installed as per manufacturer's installation instruction
3.13
dry operating condition
condition when the chimney is designed to operate normally with the temperature of the inner surface
of the flue liner at or above the water dew point
Note 1 to entry: Dry operating condition is designated "D".
[SOURCE: EN 1443:2019, 3.29]
3.14
enclosure
additional structure, combustible or non-combustible, built around a chimney
Note 1 to entry: An enclosure which is specified as a part of the chimney is considered an “outer wall” of the chimney.
Note 2 to entry: Enclosures can for example give additional safety in case of fire, provide additional heat transfer
resistance, prevent accidental human contact, prevent impact damage and can be used for decorative purposes.
[SOURCE: EN 1443:2019]
3.15
external installation
part of a chimney, which is located outside the building
3.16
firestops
barrier to prevent the spread of fire
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3.17
flexible pipe
metal liner, or metal connecting flue pipe having a single or doubl
...