EN 16647-1:2025
(Main)Alcohol powered flueless fireplaces - Safety requirements and test methods - Part 1: Manually operated decorative fireplaces for domestic use
Alcohol powered flueless fireplaces - Safety requirements and test methods - Part 1: Manually operated decorative fireplaces for domestic use
This document is applicable only to decorative fireplaces that have been manufactured for domestic use, which produce a flame using liquid alcohol, hereafter referred to as fuel.
NOTE 1 The requirements outlined in this document can also be applied for outside domestic settings. In that case, additional or different rules on the use of the fireplaces can apply.
This document is applicable to free-standing, wall-mounted and built-in fireplaces.
This document is applicable to decorative fireplaces that require manual user interaction for ignition, filling, re-filling or extinguishing the fireplace.
NOTE 2 The fireplaces can contain some electric or electronic components.
This document is applicable to fireplaces ready for use, whose fuel box is of one unit or is an integral component of the fireplace but not to fireplaces with a fuel tank separate from the fireplace.
This document does not apply to fireplaces specifically designed for heating food or keeping food warm (rechauds), nor does it apply to fireplaces for use in boats, caravans, other vehicles or outdoor areas.
This document does not apply to fireplaces with a power output higher than 4,5 kW or with a defined heating function.
NOTE 3 National regulations can restrict the power output to less than 4,5 kW.
Alkoholbetriebene abzugslose Feuerstätten - Sicherheitstechnische Anforderungen und Prüfmethoden - Teil 1: Manuell betriebene dekorative Feuerstätten für den Haushaltsbereich
Dieses Dokument ist anwendbar nur für dekorative Feuerstätten für die Nutzung im privaten Haushaltsbereich hergestellt wurden, die unter Verwendung eines auf Alkohol basierenden flüssigen Brennstoffes eine Flamme erzeugen.
ANMERKUNG 1 Die Anforderungen können auch bei Anwendung außerhalb des privaten Haushaltbereiches zutreffen. In diesem Fall können weiterführende bzw. andere Regelungen auf die Verwendung der Feuerstätten zutreffen.
Dieses Dokument ist anwendbar für freistehende, Wand- und Einbaugeräte.
Dieses Dokument ist anwendbar für dekorative Feuerstätten, die einen Benutzer zum Anzünden, Befüllen, Nachfüllen oder zum Verlöschen der Feuerstätte benötigen.
ANMERKUNG 2 Die Feuerstätte kann einige elektrische oder elektronische Bauteile enthalten.
Dieses Dokument ist anwendbar für verwendungsfertige Feuerstätten, deren Brennstoffkammer aus einer Einheit besteht oder ein integraler Bestandteil der Feuerstätte ist. Sie gilt nicht für Feuerstätten mit einem von der Feuerstätte getrennten Brennstofftank.
Dieses Dokument ist nicht anwendbar für Feuerstätten die speziell zum Erwärmen oder Warmhalten von Speisen (Rechauds), sowie für Feuerstätten zur Verwendung in Booten, Wohnwagen, sonstigen Fahrzeugen oder im Außenbereich gedacht sind.
Dieses Dokument ist nicht anwendbar für Feuerstätten mit einer Heizleistung über 4,5 kW oder mit einer definierten Heizfunktion.
ANMERKUNG 3 Nationale Vorschriften können die Leistung auf weniger als 4,5 kW beschränken.
Foyers sans conduit et fonctionnant à l’alcool - Exigences de sécurité et méthodes d’essai - Partie 1 : Foyers décoratifs à fonctionnement manuel pour un usage domestique
Le présent document s’applique uniquement aux foyers décoratifs destinés à un usage domestique et produisant une flamme à partir d’alcool liquide (appelé ci-après « combustible »).
NOTE 1 Les exigences détaillées dans le présent document sont également applicables à l’usage domestique de ces foyers en espace extérieur. Dans ce cas, des règles supplémentaires ou différentes pour leur utilisation peuvent s’appliquer.
Le présent document s’applique aux foyers autoportants, aux foyers à fixation murale ainsi qu’aux foyers intégrés.
Le présent document s’applique aux foyers décoratifs exigeant l’intervention manuelle d’un utilisateur pour les allumer, les remplir, les reremplir ou les éteindre.
NOTE 2 Ces foyers peuvent comprendre des composants électriques ou électroniques.
Le présent document s’applique aux foyers prêts à l’emploi, dont le bloc de combustion est d’un seul tenant ou fait partie intégrante du foyer. Il ne s’applique toutefois pas aux foyers équipés d’un réservoir de combustible indépendant.
Le présent document ne s’applique pas aux foyers destinés à cuire la nourriture ou à la maintenir au chaud (réchauds), ni aux foyers destinés à être utilisés à bord de bateaux, de caravanes et autres véhicules, ou dans des espaces extérieurs.
Le présent document ne s’applique pas aux foyers d’une puissance supérieure à 4,5 kW ou assurant une fonction de chauffage définie.
NOTE 3 Les réglementations nationales peuvent limiter la puissance à moins de 4,5 kW.
Kamini na alkohol brez priključka na dimnik - Varnostne zahteve in preskusne metode - 1. del: Dekorativni kamini z ročnim upravljanjem za domačo uporabo
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
oSIST prEN 16647-1:2023
01-marec-2023
Kamini na alkohol brez priključka na dimnik - Varnostne zahteve in preskusne
metode - 1. del: Dekorativni kamini z ročnim upravljanjem za domačo uporabo
Alcohol powered flueless fireplaces - Safety requirements and test methods- Part 1:
Manually operated decorative fireplaces for domestic use
Alkoholbetriebene abzugslose Feuerstätten - Sicherheitstechnische Anforderungen und
Prüfmethoden - Teil 1: Manuell betriebene dekorative Feuerstätten für den
Haushaltsbereich
Foyers sans conduit et fonctionnant à l’alcool - Exigences de sécurité et méthodes
d’essai - Partie 1 : Foyers décoratifs à fonctionnement manuel pour un usage
domestique
Ta slovenski standard je istoveten z: prEN 16647-1
ICS:
97.100.40 Grelniki na tekoče gorivo Liquid fuel heaters
oSIST prEN 16647-1:2023 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
oSIST prEN 16647-1:2023
oSIST prEN 16647-1:2023
DRAFT
EUROPEAN STANDARD
prEN 16647-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
January 2023
ICS 97.100.99 Will supersede EN 16647:2015
English Version
Alcohol powered flueless fireplaces - Safety requirements
and test methods- Part 1: Manually operated decorative
fireplaces for domestic use
Alkoholbetriebene abzugslose Feuerstätten -
Sicherheitstechnische Anforderungen und
Prüfmethoden - Teil 1: Manuell betriebene dekorative
Feuerstätten für den Haushaltsbereich
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 46.
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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye 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
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 16647-1:2023 E
worldwide for CEN national Members.
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prEN 16647-1:2023(E)
Contents Page
European foreword . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 6
4 Construction . 7
4.1 General. 7
4.2 Fuel Volume . 7
4.3 Construction . 8
4.4 Materials . 8
4.5 Stability . 8
4.6 Ignition device. 9
5 Test methods and requirements . 9
5.1 Stability tests . 9
5.1.1 General. 9
5.1.2 Tilting and sliding test . 9
5.1.3 Movement from impact test . 10
5.1.4 Tilting from impact stress . 11
5.1.5 Stress test . 12
5.1.6 Spillage test . 14
5.2 Fuel storage container . 14
5.2.1 General. 14
5.2.2 Requirement on soundness . 14
5.2.3 Test on soundness . 14
5.2.4 Requirement on overfilling . 14
5.2.5 Test on overfilling . 14
5.2.6 Requirements on filling material . 15
5.2.7 Container marking . 15
5.2.8 Container marking test . 15
5.3 Operating tests . 16
5.3.1 Test conditions . 16
5.3.2 Fuel consumption . 16
5.3.3 Operating safety . 17
5.3.4 Self-reignition test . 18
5.3.5 Extinguish test . 18
5.3.6 Combustion . 18
5.3.7 Fire safety . 24
5.3.8 Electrical safety . 25
5.3.9 Electronic devices . 25
5.4 Labelling . 25
6 Marking . 26
6.1 General. 26
6.2 Fireplace labelling/Rating plate . 26
6.3 Safety information . 26
6.4 Marking on the package . 27
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7 User’s manual . 27
7.1 General . 27
7.2 Installation instructions . 27
7.3 Instructions for use and maintenance . 28
7.4 Emergency extinguishing instructions . 30
8 Type testing . 30
8.1 Test sample and documents . 30
8.2 Test report . 30
9 Factory production control (FPC) . 31
9.1 General . 31
9.2 Equipment . 31
9.2.1 Testing . 31
9.2.2 Production . 31
9.2.3 Raw materials and components . 31
9.2.4 Traceability and marking . 32
9.2.5 Product testing and evaluation . 32
Annex A (informative) Additional possible symbols . 33
Annex ZA (informative) Relationship between this European Standard and the safety
requirements of Directive 2001/95/EC aimed to be covered . 37
Bibliography . 39
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prEN 16647-1:2023(E)
European foreword
This document (prEN 16647-1:2023) has been prepared by Technical Committee CEN/TC 46 “Fireplaces
for liquid fuels”, the secretariat of which is held by DIN.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 16647:2015.
prEN 16647-1:2023 includes the following significant technical changes with respect to EN 16647:2015:
— Alignment with Mandate M/538 and Commission Decision (EU) 2015/547 throughout the full text;
— Change of Scope and splitting the document into two parts, this part covers manually operated
fireplaces
— Removal of all requirements, regarding automatically operated fireplaces (e.g. Annex B), these will
be covered in Part 2;
— Removal of gelatinous fuel;
— Restructure of Clause 5;
— Addition of requirements for glass screens in 5.3.3.1;
— Revision of the entire combustion Clause 5.3.6;
— Revision of Clause 9 (Factory production control).
This document has been prepared under a Mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EU Directive(s) /
Regulation(s).
For relationship with EU Directive(s) / Regulation(s), see informative Annex ZA, which is an integral part
of this document.
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prEN 16647-1:2023 (E)
1 Scope
This document applies only to decorative fireplaces that have been manufactured for domestic use, which
produce a flame using liquid alcohol, hereafter referred to as fuel.
NOTE 1 The requirements outlined in this document can also be applied for outside domestic settings. In that
case additional or different rules on the use of the fireplaces can apply.
This document applies to free-standing, wall-mounted and built-in fireplaces.
This document applies to decorative fireplaces that require manual user interaction for ignition, filling,
re-filling or extinguishing the fireplace.
NOTE 2 The fireplaces can contain some electric or electronic components.
This document applies to fireplaces ready for use, whose fuel box is of one unit or are an integral
component of the fireplaces but not for fireplaces with a fuel tank separate from the fireplace.
This document does not apply to fireplaces specifically designed for heating food or keeping food warm
(rechauds), nor does it apply to fireplaces for use in boats, caravans, other vehicles or outdoor areas.
This document does not apply to fireplaces with a power output higher than 4,5 kW or with a defined
heating function.
NOTE 3 National regulation can restrict the power output to less than 4,5 kW.
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 1023-3:2000, Office furniture - Screens - Part 3: Test methods
EN 10088-3:2014, Stainless steels - Part 3: Technical delivery conditions for semi-finished products, bars,
rods, wire, sections and bright products of corrosion resisting steels for general purposes
EN 13240:2001+A2:2004, Roomheaters fired by solid fuel — Requirements and test methods
EN 13501-1:2018, Fire classification of construction products and building elements - Part 1: Classification
using data from reaction to fire tests
EN 60335-1:2012, Household and similar electrical appliances - Safety - Part 1: General requirements
EN 60335-2-102:2016, Household and similar electrical appliances - Safety - Part 2-102: Particular
requirements for gas, oil and solid-fuel burning appliances having electrical connections
EN ISO 13732-1:2008, Ergonomics of the thermal environment - Methods for the assessment of human
responses to contact with surfaces - Part 1: Hot surfaces (ISO 13732-1:2006)
ISO/IEC Guide 37:2012, Instructions for use of products by consumers
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3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp/
— IEC Electropedia: available at https://www.electropedia.org/
3.1
appliance which is ready for use
unit comprising a burner and housing which are supplied ready for use by the manufacturer or a burner
which is ready to be built into a setting as per the manufacturer's instructions
3.2
area of flame impingement
area which could be touched by the flame under normal operating conditions
3.3
body
unit comprising walls, base and covers made of non-combustible or thermally protected materials which
encase the burner and within which the combustion takes place
3.4
burner
unit comprising at least secondary containment chamber and the burner opening
3.5
burner opening
opening in the burner at which the combustion of the fuel-air mixture takes place
3.6
secondary containment chamber
container in which the fuel storage tank is located, in order to contain excess, overfilled fuel or fuel leaking
out of a defective fuel storage tank
3.7
decorative fireplaces fuelled by liquid fuel
appliance which is fuelled with liquid fuel and used for decorative purposes
3.8
fixed fireplace
appliance designed to be permanently fixed to the fabric of the building
3.9
free standing fireplace
appliance not designed to be permanently fixed to the fabric of the building and not provided with helping
devices for moving
3.10
fuel
alcohol derivate alcohol with at least 95 % C2H5OH
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3.11
filling material
material inside of the burner to absorb the fuel
3.12
fuel storage tank
container part of the appliance, from which the fuel is fed to the burner
3.14
minimum burner adjustment
burner setting at lowest fuel consumption
3.15
ignition device
device for ignition of the burner
3.16
maximum burner adjustment
burner setting at highest fuel consumption
3.17
non-combustible material
material classified A2-s1d0 as described in EN 13501-1:2018
3.18
test bag
device for testing the stability of the fireplace3.19
3.19
tabletop fireplace
appliance which is placed exclusively on furniture, wall shelves in accordance with the manufacturer's
definition and not in the walkable area within a room
4 Construction
4.1 General
The fireplace shall be produced in such a way as to:
— rule out any type of permanent deformations or other damages on the fireplace after testing;
— withstand any tensions occurring during normal use;
— facilitate being operated safely.
The use of decorative elements e.g. imitation wood, pebbles in the area of flame impingement are not
permitted.
4.2 Fuel Volume
The maximum burner volume shall not exceed 3 litres. The total fuel capacity of the fireplace shall not
exceed 10 litres
NOTE National or regional legislation might impose lower limits.
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4.3 Construction
The fireplace shall be fitted with a feature with an easy-to-use closing mechanism (in order to extinguish
the flames). This mechanism shall work reliably and safely whilst the fireplace is in use. If required by
means of auxiliary tools, these shall be provided with the fireplace.
Furthermore, the design of the construction shall ensure:
— any welding seams of the fuel storage tank shall be continuously welded;
— that replaceable parts or parts necessary for assembly on site shall not be fitted incorrectly;
— that all parts used for operation and/or maintenance of the fireplace shall be free from sharp edges
which could constitute a safety hazard for the user;
— an extinguishing device fulfilling 5.3.5.
4.4 Materials
The parts which are in contact with the fuel shall be constructed with chrome-nickel steel X5CrNi18-10
according to EN 10088-3:2014.
NOTE 1 This is equivalent to chrome-nickel steel 1.4301.
If different materials are used, their suitability in terms of thermal, chemical, mechanical properties and
corrosion resistance shall be proven by specification or by test; special consideration shall be given to
materials used in areas touching the flame.
Soldering flux containing Asbestos and Cadmium shall not be used in any components of the fireplace.
Any insulation material shall be non-combustible (A2s1d0 class, EN 13501-1:2018) and its application
shall not pose any threat to health and safety.
Filling materials used in the burners shall be durable and specifically suited for the thermal strain under
contact with fuel and its combustion and shall not alter their properties. Proof shall be presented in order
to make sure the suitability of the material. This shall be tested according to 5.7.
NOTE 2 Certificates issued by a test institute are acceptable proof.
The burner, and all components which can reach a temperature over 65 K above room temperature, shall
be constructed of non-combustible materials.
4.5 Stability
If fittings for the mounting or fixing of the fireplaces are provided with the fireplace, they shall be durable
for the whole life of the fireplace.
If unintentionally moved or tilted during operation the fireplace shall be stable according to the tests in
5.1.
Fireplaces provided with wheels, or any other device helping their movement, shall be naturally blocked
and it shall be impossible to move them without extinguishing the flame.
The freestanding fireplaces shall pass the stability test (tilting and sliding, impact, movement test), as
stated in 5.1.
For all the tests the fuel tank shall be filled with fuel to the maximum level according to the user
instruction.
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prEN 16647-1:2023 (E)
For wall-mounted fireplaces, unintentional movement or release shall be prevented. Especially it shall
not be possible to unintentionally unlatch or lift off the fireplace from its fittings. This should be checked
during the test in 5.1.5.
NOTE Damage to the fireplace which is caused by impact stress (e.g. crack in a glass screen) may be accepted
as long as the requirements towards mechanical stability and fuel spillage are met.
4.6 Ignition device
The fireplace shall be safe to ignite.
It shall be possible to light the fireplace with commonly available lighters, if the fireplace is not equipped
with an integrated ignition device, a suitable lighter shall be provided with the fireplace. The user shall
be able to ignite the fire from a horizontal minimum distance of 140 mm (shortest distance between the
handle of the lighter or ignition device and the burner opening).
Devices which would enable the user to light the fire without visual contact with the flames are not
allowed.
If a remote-control device is provided, an accidental ignition shall not be possible, and a child safety
device shall be provided.
EXAMPLE Pressing two buttons is considered enough for chid safety.
5 Test methods and requirements
5.1 Stability tests
5.1.1 General
Table 1 shows an overview of the tests which shall be performed according to type of fireplace.
Table 1 — Tests to be performed according to fireplace type
Fireplace
Test required Fixed Free standing Tabletop
Tilting + Sliding NO YES YES
Movement from impact YES YES YES
Tilting from impact NO YES YES
Stress YES NO NO
Spillage NO YES YES
For all of the tests, the fuel tank shall be filled with fuel or water to the maximum level according to user
instruction or lower if any level is considered more critical.
It is recommended that all tests are performed by laboratory accredited according to EN ISO/IEC 17025.
5.1.2 Tilting and sliding test
The fireplace shall be placed on an inclinable cleaned, smooth surface of glass and without being fixed.
The surface shall be tilted up to 5° to all sides for free-standing fireplaces and tabletop fireplaces up to
10°.
The speed at which the surface is tilted shall not exceed 1,5 ± 0,5° increase of tilt angle/second.
The test is considered as passed if there is no movement, tilting nor spillage.
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5.1.3 Movement from impact test
The fireplace shall be placed on a cleaned, smooth, rigid, horizontal and level surface (e.g. glass plate).
A test bag (see Figure 1) shall be deflected by 600 mm and then swings freely towards to the centre of
balance (see Figure 2).
Dimensions in millimetres
Key
1 leather string
2 eight canvas sections
3 leather bottom
4 20 kg dry corn
Figure 1 — Spheroconical bag for the stability test
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Dimensions in millimetres
Key
1 Example of fireplace
2 combustion chamber
a maximum height of water or fuel
Figure 2 — Safety test for movement and leakage of fuel while striking against the fireplace
The test is considered as passed, if there is no spillage and the fireplace does not move more than 50 %
of the safety distance stated in the user instruction. In any case, the fireplace shall not move more than
1 m.
5.1.4 Tilting from impact stress
The fireplace shall be placed on a cleaned, smooth, rigid, horizontal and level surface (e.g. glass plate). A
stopping device/barrier, the purpose of which is to restrict the movement of the fireplace, shall be fixed
on the floor next to the fireplace. Its height shall not exceed 12 mm (according to EN 1023-3:2000),
provided that the construction of the fireplace does not require a higher stopping device/barrier. In that
case, the height to be chosen shall be the lowest one which prevents the fireplace from moving (see
Figure 3).
During the impact test with a pendulum from the side of the fireplace opposed to the stopping
device/barrier, the fireplace shall not spill.
The test bag of 20 kg weight shall be suspended from a 2 m long rope in such a manner that it hangs
directly next to the most critical point of the fireplace (with regards to tilting it - which is usually the point
at the biggest distance from centre of balance) in 1 m height from the floor or next to its upper edge, if
the fireplace is lower than 1 m. The test bag is deflected by 600 mm and then swings freely towards the
fireplace.
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Dimensions in millimetres
Key
1 Example of fireplace
2 combustion chamber
3 stopping device/Barrier
a maximum height of water or fuel
Figure 3 — Tilting test for fireplaces
The test is considered as passed if there is no spillage.
5.1.5 Stress test
The fireplace shall be fixed to the test wall/ceiling as specified in the instruction.
The fireplace shall then be lit; after 3/4 of the maximum combustion time the fireplace shall be shut down
and a test weight, made by two weights of 30 kg each connected with a rope (the two weights shall be
suspended), shall be applied within 2 min after shutdown (see Figure 4).
The weight shall be left on the fireplace for 10 min and then removed.
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Key
1 wall mounted fireplace
2 force (each 30 kg)
NOTE The force is fixed on the rope via a ring locker
Figure 4 — Stress test 1 for wall mounted fireplaces
For testing wall mounted fireplaces, a lateral force of 45 kg shall be applied to the fireplace for 2 min. The
force shall be applied to the farthest point from the fireplace’s wall fixes (see Figure 5).
Key
1 wall mounted fireplace
2 lateral force (45 kg)
3 Expansion screw fixed to the wall
NOTE The force is fixed on the rope via a ring locker
Figure 5 — Stress test 2 for wall mounted fireplaces
The test is considered as passed if the fireplace presents no deformations of its structure and its
connection system, and no spillage from the fireplace after any of the tests.
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5.1.6 Spillage test
The fireplace shall be placed on a cleaned, smooth, rigid, horizontal (e.g. glass) and inclinable surface
without being fixed.
The surface shall be successively tilted towards all sides by 10°. The fireplace shall neither tilt nor slip.
The speed at which the surface is tilted shall not exceed 1,5 ± 0,5° increase of tilt angle/second.
The test is considered as passed if there is no spillage.
5.2 Fuel storage container
5.2.1 General
The way of safe refilling of the fireplace shall be described in the instruction for use and maintenance.
If symbols on the burner are not coloured, coloured stickers shown in Figure 6 shall be added to the
burner, in order to force the removing before the first use of the fireplace.
5.2.2 Requirement on soundness
The fuel storage container shall be leak proof. This is checked by the test under 5.2.3.
5.2.3 Test on soundness
At maximum filling level according to the instructions for use no fuel shall leak during a period of 24 h.
Alternatively, the tightness can be tested by applying pressure of 0,5 bar to the container for 5 min which
shall not show any visible leaks.
EXAMPLE Bubble formation when using leak detection spray.
5.2.4 Requirement on overfilling
The fireplace shall be constructed in such a way that any fuel leakage is avoided. In order to prevent
leakage, an additional containment chamber shall be provided which has a minimum volume of 110 % of
the actual filling volume and that prevents the accumulation of explosive gases.
NOTE This can be achieved for example by sufficient ventilation.
An additional containment chamber that does not allow the checking and removal of any excess fuel is
prohibited.
The product documentation shall contain safety advice regarding the danger of ignition of fuel overspill.
Furthermore, the user shall be instructed to check and remove any excess fuel in the secondary
containment chamber before lighting the fireplace.
The fireplace shall be equipped with a durable and clearly visible device which helps preventing
overfilling and subsequent overrun of fuel during filling when carried out in accordance with the intended
terms of use. A level indicator or a fill level mark are regarded as suitable devices.
5.2.5 Test on overfilling
The fireplace shall be overfilled with 10 % of the container capacity and lit. The test is considered as
passed if extra flames are safe and do not lead to explosions.
NOTE: The capacity given in the instructions are not considered.
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5.2.6 Requirements on filling material
The change of the weight and the dimensions of the dry filling material shall not exceed 5 % after the
following test under 5.2.7. A representative piece of filling material shall be kept at operating temperature
(or 60 °C) for 42 d. The weight and the dimensions of the dry filling material shall be determined before
and after the test.
Furthermore, a visual check shall be done to ascertain whether there are flaws in the structure of the
filling material (local damage).
After the storage test, the ignition tests according to 5.3.7.6 shall be performed.
5.2.7 Container marking
Clearly visible and durable safety symbols shall be shown around the filling opening of the fireplace
indicating that filling when warm or in operation is not allowed (Figure 6).
Figure 6 — Graphical symbols “Do not fill fuel into the open flame. Do not fill fuel into the hot
burner”
The size of the symbol shall be at least 25 mm. If the symbol is engraved or laser etched into the metal, it
does not have to be coloured. Marking of components of the fireplace which are removed during
operation or a marking of accessories (funnel, lighter, fuel refill container) are not considered as
sufficient.
5.2.8 Container marking test
The durability of the safety mark/symbol is not only to be tested and confirmed during operation in
accordance with the intended terms of use, but shall additionally be confirmed in the following test
procedure: For the duration of 15 s the symbol shall be firstly rubbed with a cotton cloth soaked in water.
Subsequently, it shall be again rubbed for 15 s with a cotton cloth soaked in fuel.
If symbols on the burner are not coloured, coloured stickers shown in Figure 6 shall be added to the
burner. These stickers maybe removed before the first use of the fireplace. Stickers alone are not
acceptable.
The test shall show whether the mark/symbol remains clearly legible following the described treatment.
The method of safe refilling of the fireplace shall be described in the user instruction.
oSIST prEN 16647-1:2023
prEN 16647-1:2023(E)
5.3 Operating tests
5.3.1 Test conditions
All tests shall be carried out with one of the fuels specified in the list of recommended fuels given in the
instructions for use and maintenance.
Testing room:
— temperature 20°C ± 5°C;
— relative humidity between 30 % and 90 %.
Table 2 — Uncertainty of measurement
Indicator Uncertainty of measurement
Gas analysis ±3 ppm
CO, CO 0,1 % volume fraction
Temperature ≤ 2 K
Room ≤ 2 K
Surface ≤ 2 K
Masses ±1 %
5.3.2 Fuel consumption
The whole fireplace shall be placed on a scale, and fuel consumption determined at the maximum setting.
Since the construction of the fireplace can greatly influence the fuel consumption it is not allowed to
perform these measurements on the burner alone.
The test period shall begin with the ignition and shall last at least until 30 min after the fireplace has
reached thermal stability or at least until a full fuel tank has been consumed. The reading of weight change
shall be made every 5 min. Thermal stability is considered as reached when three consecutive readings
do not deviate more than 5 % from each other.
It is not acceptable over the whole burning period, that there is an increasingly larger increase of fuel
consumption from reading to reading.
The fuel consumption B (kg/h) shall be determined from the weight change readings.
The thermal output is calculated as follows:
P BH⋅ (1)
i
where
P thermal output, kW;
B fuel consumption, kg/h;
H calorific value of the fuel, kWh/kg.
i
The given calorific value of the used fuel is taken.
NOTE For fuel with ethanol concentration of at least 95 %, H = 7,4 kWh/kg can be used
i
=
oSIST prEN 16647-1:2023
prEN 16647-1:2023 (E)
5.3.3 Operating safety
5.3.3.1 Flame accessibility
The access to the fire shall be obstructed at least from one side. If areas of the fireplace could be used as
a repository, the access to the fire shall be blocked from two sides. The housing of tabletop fireplaces shall
restrict access to the flames from at least two sides. The majority of flames in fireplaces which are open
at the top shall be shielded by the screens.
Where glass screens are used, their construction and attachment to the fireplace shall be such that they
are made of either glass-ceramic, borosilicate or tempered glass, but in any case, that the screen:
— is of at least 4 mm thickness
— is able to withstand maximum temperatures of the fireplace (of a minimum temperature of at least
250 °C). This requirement is considered to be fulfilled by using the mentioned materials;
— has appropriate thermal expansion properties that enable it to expand and contract without cracking
during use, this requirement is considered to be fulfilled, if after the tests performed in Clause 5 there
is no visible damage.
— has appropriate thermal shock ratings such as it may tolerate sudden temperature changes without
cracking
— has no sharp edges along any of its surfaces.
5.3.3.2 Draught protection
The fireplace shall be constructed in such a way to prevent flaring out of the flames under normal air
draft conditions by more than the safety distance as indicated in the instructions and shall not exceed in
any case 50 cm. The following test is failed, if the given safety distance is exceeded.
The tests shall be performed twice, once with an airflow of 2,0 m/s and a second one with an airflow of
0,5 m/s.
The fireplace shall be operated with a full fuel tank in accordance with the instructions for use and
maintenance, and an airstream shall be created at the height of the burner opening. The airstream shall
reach at least across the width of the burner opening. For the purpose of this test, a shield is positioned
between the fan and the fireplace which shall be removed for 3 s once the fireplace has been lit. Then the
airstream shall be interrupted again for 3 s using the shield. This sequence (3 s at a time) shall be repeated
until the flames have been exposed to the draft three times. The exposure to the airstream shall be
repeated in a semicircle around the burner's opening from the most critical directions, whereby the
centre of the circle is located at the intersection point of the middle axis of the fireplace and the testing
level.
This test shall be repeated with a half-filled and 10 % filled fuel tank from all critical incidence angles.
5.3.3.3 Safety of filling materials
If the fireplace features a burner which is filled with absorbent materials like ceramic fibres or refractory
material, any flame shall be clearly visible during the burning-out phase i.e. hidden flames inside the
filling material shall be avoided.
The test shall be performed during the burning-out phase: the CO volume of all exhaust gases excluding
air and water vapour measured within a 10 min period shall not exceed 0,2 %. The average values found
during 10 min shall be measured from the moment of extinction of the flame until the point of uncertainty
of CO measurement has been reached.
oSIST prEN 16647-1:2023
prEN 16647-1:2023(E)
A visual test shall be performed, if the flame is not clearly visible, the test is not passed.
5.3.4 Self-reignition test
The test shall be carried out at maximum burner settings until the temperature reached in the area which
can be touched by the flame under normal operating conditions does not fluctuate by more than ± 5 K in
5 min or after 30 min of burning at maximum power.
The fireplace shall be shut down for a duration of 10 s; after that the burning area shall be re-opened; no
self-reignition shall take place.
5.3.5 Extinguish test
The test shall be carried out at maximum burner settings until the temperature reached in the area which
can be touched by the flame under normal operating conditions does not fluctuate by more than ± 5 K in
5 min or after 30 min of burning at maximum power.
The manual shut down procedure shall be operated and the test is considered as passed if the fire
extinguishes in 10 s or less.
If an automatic shutdown system is provided, a second test shall be performed and it is considered as
passed if the fire extinguishes in 5 min or less.
5.3.6 Combustion
5.3.6.1 Combustion performance
5.3.6.1.1 General
Carbon dioxide needs to be measured as it is the major combustion product and may affect the indoor air
quality.
Carbon monoxide is regarded as a suitable indicator for combustion quality.
By controlling the CO emissions other products of incomplete combustion such as:
— aldehydes such as formaldehyde,
— volatile organic compounds (VOCs),
— aromatic hydrocarbons such as benzene and polycyclic aromatic hydrocarbons (PAHs),
— soot and other particle emissions,
— emissions from unburnt fuel
are also addressed.
Due to low combustion temperatures of decorative ethanol fireplaces, there is no thermal NOx formation.
Therefore, NO, NO and NOx do not play an important role.
The following maximum ratings shall not be exceeded during the tests, with an assumed air renewal of
0,5 Volume/h:
The CO concentration shall be lower than:
— 87 ppm for every 15 min period during the test;
— 52 ppm for every 30 min period during the test;
— 26 ppm for every 1 h period during the test;
oSIST prEN 16647-1:2023
prEN 16647-1:2023 (E)
— 9 ppm for every 8 h period during the test.
The test for CO concentration is performed only at maximum burner adjustment in an 8 h test, during
which the fireplace shall be refilled continuously in accordance with the user manual once the tank is
empty. The CO concentration mean value shall be lower than 5 000 ppm.
If electronic safety devices are provided to shut down the fireplace, the refuelling shall be done only when
the safety device allows it to.
The laboratories shall provide the manufacturer with indications on the minimum room size for the
tested fireplace; the manufacturer shall put the room size indication on the package and in the user
instruction.
5.3.6.1.2 Sampling and methods
Unless mentioned otherwise, all tests relating to the combustion within this paragraph shall be carried
out at a maximum fuel level and with one of the recommended fuels as specified in the instructions.
Unless mentioned otherwise, all tests relating to the combustion within this paragraph shall be carried
out with both maximum and minimum burner adjustment; if there are no different burner settings, only
one test needs to be carried out.
Direct combustion tests shall be performed conveying the combustion products through a sampling
device, allowing in such a way sampling and analysis of the emissions at a known dilution ratio with
ambient air (see Figure 7, Figure 8).
The sampling device is placed over the fireplace, selected according to the shape of the fireplace. The
sampling device shall overlap the fireplace by at least 40 mm at all sides.
This device shall collect all the products of combustion but shall not alter their course to the extent where
this is likely to affect the quality of combustion. The height of the hood base, referred to the burner plane,
is adjusted so that the CO measured concentration is as close as possible to 1 %, to prevent any possible
influence of the hood itself on the combustion process.
NOTE This document refers to a hood designed according to standard EN 30-1-1:2021 on tests of hob gas
burners.
oSIST prEN 16647-1:2023
prEN 16647-1:2023(E)
Dimensions in millimetres
Key
h height
a width of hood overlapping the fireplaces on each side of at least 40 mm
b length of hood overlapping the fireplaces on each side of at least 40 mm
Figure 7 — Combustion — Sampling hood
oSIST prEN 16647-1:2023
prEN 16647-1:2023 (E)
Dimensions in millimetres
Material - stainless steel
Key
1 steatite tube with two holes into which thermocouple wire
...
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