Specification for dedicated liquefied petroleum gas appliances - Parasol patio heaters - Flueless radiant heaters for outdoor or amply ventilated area use

This European standard specifies the design, safety and marking requirements and test methods for flueless patio heaters for outdoor or amply ventilated area use only.
Although they are not covered by this standard, the requirements of this standard are applicable to appliances that may be used inside habitations which, in addition, shall have a heat input not exceeding 4,2 kW and comply with EN 449.
These appliances are for use exclusively with gases of the third family as defined in Clause 4.
This European standard applies to appliances that have a nominal heat input not exceeding 17 kW (based on the gross calorific value);
   fixed or,
   movable, including those which comprise a housing for a transportable and rechargeable liquefied petroleum gas cylinder.
This European standard does not apply to appliances equipped with a fan for either combustion or circulation of the convection air.
This European standard does not cover LPG containers for liquefied petroleum gas, neither their associated regulator nor tubing and flexible hoses which shall comply with national requirements in force.
This European standard does not lay down any specific requirements for the thermal efficiency of this type of appliances, but the requirements relating to combustion, which is a safety matter, ensure that the gas fuel will burn efficiently. However a method to measure the performance is described in informative Annex C.
This standard does not apply to appliances covered by EN 416-1, EN 419-1, EN 449, EN 461 and EN 521.
This European standard only covers type testing.
Items relating to quality assurance systems, production testing and particularly certificates of conformity of auxiliary equipment are not covered by this European standard.

Festlegungen für Flüssiggasgeräte - Terrassen-Schirmheizgeräte - Abzugslose Terrassenheizstrahler zur Verwendung im Freien oder in gut belüfteten Räumen

Spécifications pour les appareils fonctionnant exclusivement aux gaz de pétrole liquéfiés - Parasols pour chauffage de terrasse - Appareils de chauffage radiants non raccordés utilisés à l’extérieur ou dans des espaces largement ventilés

La présente Norme européenne spécifie les exigences de construction, de sécurité et de marquage et les méthodes d’essais des appareils non raccordés, pour chauffage de terrasse, utilisables uniquement en plein air ou dans un espace largement ventilé.
Ces appareils sont destinés à être utilisés exclusivement avec les gaz de la troisième famille définis en 4.
Cette norme européenne s’applique aux appareils de débit calorifique nominal inférieur ou égal à 17 kW (déterminé sur le pouvoir calorifique supérieur), alimentés avec une pression d’entrée maximale de 50 mbar.
-   fixes ou ;
-   mobiles, y compris ceux qui incorporent un logement pour une bouteille de gaz de pétrole liquéfiés transportable et rechargeable.
Cette norme européenne ne s’applique pas aux appareils équipés d’un ventilateur servant soit à la combustion, soit à la circulation de l’air de convection.
Cette norme européenne ne couvre pas les récipients GPL pour gaz de pétrole liquéfié, leurs détendeurs associés, les tubes et tuyaux flexibles utilisés pour l’alimentation en gaz des appareils couverts par cette norme européenne. Les détendeurs, tubes et tuyaux flexibles sont couverts par d’autres normes (EN 16129, EN 16436-1 and prEN 16436-2, etc.), et des réglementations nationales.
Cette norme européenne ne fixe pas de prescription particulière pour le rendement thermique de ce type d’appareils, mais les exigences concernant la combustion, qui relève de la sécurité, garantissent au combustible gazeux de brûler efficacement. Cependant une méthode de mesure des performances est décrite dans l’Annexe informative B.

Specifikacija za plinske aparate na utekočinjeni naftni plin - Prostostoječi gobasti grelniki za terase - Sevalni grelniki brez priključka na dimnik za zunanjo uporabo ali uporabo v dobro prezračevanih prostorih

Ta evropski standard določa zahteve za načrtovanje, varnost in označevanje ter preskusne metode za sevalne grelnike brez priključka na dimnik za zunanjo uporabo ali uporabo v dobro prezračevanih prostorih.
Čeprav niso zajeti v tem standardu, se zahteve tega standarda uporabljajo za naprave, ki se lahko uporabljajo znotraj prostorov in imajo poleg tega toplotno moč, ki ne presega 4,2 kW in je v skladu s standardom EN 449.
Te naprave se uporabljajo izključno s plini tretje družine, kot je določeno v 4. točki.
Ta evropski standard se uporablja za naprave z nazivno vhodno toplotno močjo, ki ne presega 17 kW (glede na bruto kalorično vrednost);
 fiksne ali
 premične, vključno s tistimi, ki imajo ohišje za premični in polnilni valj za utekočinjeni naftni plin.
Ta evropski standard se ne uporablja za naprave, opremljene z ventilatorjem za zgorevanje ali kroženje konvekcijskega zraka.
Ta evropski standard ne zajema vsebnikov za utekočinjeni naftni plin, niti njihovega povezanega regulatorja niti trdnih in gibkih cevi, ki morajo izpolnjevati veljavne nacionalne predpise.
Ta evropski standard ne določa nobenih posebnih zahtev za toplotno učinkovitost te vrste naprav, vendar zahteve v zvezi z izgorevanjem, ki so varnostna tema, zagotavljajo učinkovito izgorevanje plinskega goriva. Vendar je metoda za merjenje učinkovitosti opisana v informativnem dodatku C.
Ta standard se ne uporablja za naprave, ki jih obravnavajo standardi EN 416-1, EN 419-1, EN 449, EN 461 in EN 521.
Ta evropski standard zajema le tipsko preskušanje.
Ta evropski standard ne zajema postavk, ki se nanašajo na sisteme zagotavljanja kakovosti, na preskušanje proizvodnje in zlasti na potrdila o skladnosti pomožne opreme.

General Information

Status
Published In Revision
Public Enquiry End Date
31-Jan-2014
Publication Date
12-Nov-2017
Current Stage
9000 - Revision (Adopted Project)
Start Date
08-Jan-2020
Due Date
02-Apr-2020

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Festlegungen für Flüssiggasgeräte - Terrassen-Schirmheizgeräte - Abzugslose Terrassenheizstrahler zur Verwendung im Freien oder in gut belüfteten RäumenSpécifications pour les appareils fonctionnant exclusivement aux gaz de pétrole liquéfiés - Parasols pour chauffage de terrasse - Appareils de chauffage radiants non raccordés utilisés à l’extérieur ou dans des espaces largement ventilésSpecification for dedicated liquefied petroleum gas appliances - Parasol patio heaters - Flueless radiant heaters for outdoor or amply ventilated area use97.100.20Plinski grelnikiGas heatersICS:Ta slovenski standard je istoveten z:EN 14543:2017SIST EN 14543:2017en,fr,de01-december-2017SIST EN 14543:2017SLOVENSKI

STANDARDSIST EN 14543:2005+A1:20081DGRPHãþD
SIST EN 14543:2017
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 14543
July
t r s y ICS
{ yä s r rä t r Supersedes EN
s v w v uã t r r w ªA sã t r r yEnglish Version

Specification for dedicated liquefied petroleum gas appliances æ Parasol patio heaters æ Flueless radiant heaters for outdoor or amply ventilated area use Spécifications pour les appareils fonctionnant exclusivement aux gaz de pétrole liquéfiés æ Parasols pour chauffage de terrasse æ Appareils de chauffage radiants non raccordés utilisés à l 5extérieur ou dans des espaces largement ventilés

Festlegungen für Flüssiggasgeräte æ TerrassenæSchirmheizgeräte æ Abzugslose Terrassenheizstrahler zur Verwendung im Freien oder in gut belüfteten Räumen This European Standard was approved by CEN on

t y February
t r s yä

egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä

translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä

CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Serbiaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä

EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels

t r s y CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN

s v w v uã t r s y ESIST EN 14543:2017

EN 14543:2017 (E) 2 Contents Page European foreword ................................................................................................................................................................ 5 1 Scope ................................................................................................................................................................................... 6 2 Normative references ................................................................................................................................................... 6 3 Terms and definitions ................................................................................................................................................... 7 4 Classification and designation ................................................................................................................................ 10 5 Design requirements .................................................................................................................................................. 10 5.1 General ........................................................................................................................................................................ 10 5.2 Suitability for various gases ................................................................................................................................ 10 5.3 Materials ..................................................................................................................................................................... 10 5.4 Assembly – Sturdiness ........................................................................................................................................... 11 5.5 Stability of the appliance ...................................................................................................................................... 11 5.6 Gas circuit ................................................................................................................................................................... 11 5.7 Burner .......................................................................................................................................................................... 12 5.7.1 Burner design ....................................................................................................................................................... 12 5.7.2 Injector .................................................................................................................................................................... 12 5.7.3 Primary air admission ....................................................................................................................................... 12 5.7.4 Ignition device ...................................................................................................................................................... 12 5.7.5 Operating visibility ............................................................................................................................................. 12 5.7.6 Device for protection against accidental contact with the burner .................................................... 13 5.8 Auxiliary devices ...................................................................................................................................................... 13 5.8.1 Controls ................................................................................................................................................................... 13 5.8.2 Flame supervision device ................................................................................................................................. 14 5.8.3 Atmosphere sensing device ............................................................................................................................. 14 5.8.4 Electrical equipment .......................................................................................................................................... 14 5.8.5 Thermostat ............................................................................................................................................................ 14 5.9 Gas cylinder housing .............................................................................................................................................. 14 5.10 Protection against contact with reflector ....................................................................................................... 15 5.10.1 General ................................................................................................................................................................ 15 5.10.2 Dimensions and location .............................................................................................................................. 15 5.10.3 Alternative protection device ..................................................................................................................... 15 6 Operating requirements ........................................................................................................................................... 15 6.1 Soundness of gas circuit ........................................................................................................................................ 15 6.2 Verification of the nominal heat input ............................................................................................................. 15 SIST EN 14543:2017

EN 14543:2017 (E) 3 6.3 Operating safety ....................................................................................................................................................... 15 6.3.1 Resistance of burner to overheating ............................................................................................................. 15 6.3.2 Temperature rise ................................................................................................................................................. 15 6.3.3 Ignition, cross-ignition, flame stability ........................................................................................................ 16 6.3.4 Wind resistance .................................................................................................................................................... 16 6.3.5 Rain resistance ...................................................................................................................................................... 16 6.3.6 Soot accumulation ............................................................................................................................................... 17 6.3.7 Low-temperature ignition ................................................................................................................................ 17 6.3.8 Operation of the flame supervision device ................................................................................................. 17 6.3.9 Atmosphere sensing device (If any) .............................................................................................................. 17 6.3.10 Variation of auxiliary energy ....................................................................................................................... 17 6.4 Combustion ................................................................................................................................................................ 17 6.5 Performances ............................................................................................................................................................ 17 7 Test methods ................................................................................................................................................................. 17 7.1 Test conditions .......................................................................................................................................................... 17 7.2 Verification of compliance with design requirements ............................................................................... 18 7.2.1 General ..................................................................................................................................................................... 18 7.2.2 Stability of the appliance ................................................................................................................................... 18 7.2.3 Protecting against accidental contact with the burner .......................................................................... 18 7.3 Verification of compliance with operating requirements ......................................................................... 19 7.3.1 Absence of leakage in the gas circuit ............................................................................................................ 19 7.3.2 Heat input ............................................................................................................................................................... 20 7.3.3 Safety of operation ............................................................................................................................................... 21 7.3.4 Combustion ............................................................................................................................................................ 27 7.3.5 Performances ........................................................................................................................................................ 27 8 Marking, packaging and instructions ................................................................................................................... 28 8.1 General ......................................................................................................................................................................... 28 8.1.1 Language ................................................................................................................................................................. 28 8.1.2 Use of symbols ....................................................................................................................................................... 28 8.2 Marking of the appliance ....................................................................................................................................... 28 8.2.1 General ..................................................................................................................................................................... 28 8.2.2 Safety related markings ..................................................................................................................................... 28 8.2.3 Other marking ....................................................................................................................................................... 28 8.3 Marking of the packaging ...................................................................................................................................... 29 8.3.1 General ..................................................................................................................................................................... 29 8.3.2 Safety related marking ....................................................................................................................................... 29 8.3.3 Other marking ....................................................................................................................................................... 30 8.4 Installation and operating instructions ........................................................................................................... 30 8.4.1 General ..................................................................................................................................................................... 30 8.4.2 Safety related instructions of the appliance............................................................................................... 30 8.4.3 Safety related instructions of the gas supply installation ..................................................................... 31 8.4.4 Other instructions ................................................................................................................................................ 32 Annex A (informative)

Special national conditions .................................................................................................. 33 Annex B (informative)

Performance .............................................................................................................................. 40 SIST EN 14543:2017

EN 14543:2017 (E) 4 B.1 Introduction .............................................................................................................................................................. 40 B.2 Test method ............................................................................................................................................................... 40 B.3 Announcement ......................................................................................................................................................... 41 Annex ZA (informative)

Relationship between this European Standard and the essential requirements of Directive 2009/142/EC ................................................................................................................... 42 Bibliography .......................................................................................................................................................................... 44

SIST EN 14543:2017

EN 14543:2017 (E) 5 European foreword This document (EN 14543:2017) has been prepared by Technical Committee CEN/TC 181 “Dedicated liquefied petroleum gas appliances”, the secretariat of which is held by AFNOR. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by January 2018, and conflicting national standards shall be withdrawn at the latest by January 2018. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 14543:2005+A1:2007. 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 2009/142/EC of the European Parliament and of the Council of 30 November 2009 relating to appliances burning gaseous fuels. For relationship with EU Directive 2009/142/EC, see informative Annex ZA, which is an integral part of this document. The following changes were implemented with regard to the previous edition:

addition of max pressure in the scope;

access to the cylinder valve (only one hand movement without the use of any key or tool);

limitation of the ignition output to 5 kW;
requirement for internal flexibles;
distinction between wall mounted, suspended and grounded appliances;
requirement for water protection of electrical equipment;
removal of any reference to EN 449 compliant appliances;

addition of warning of the changing of tubing or flexible. Annexes A, B and ZA are informative. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: 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 the United Kingdom. SIST EN 14543:2017

EN 14543:2017 (E) 6 1 Scope This European standard specifies the design, safety and marking requirements and test methods for flueless patio heaters for outdoor or amply ventilated area use only. These appliances are for use exclusively with gases of the third family as defined in Clause 4. This European standard applies to appliances that have a nominal heat input not exceeding 17 kW (based on the gross calorific value), supplied with a maximum inlet pressure of 50 mbar: — fixed or, — movable, including those which comprise a housing for a transportable and rechargeable liquefied petroleum gas cylinder. This European standard does not apply to appliances equipped with a fan for either combustion or circulation of the convection air. This European standard does not cover LPG containers for liquefied petroleum gas, their associated regulator, tubing and flexible hoses used for gas supply of appliances covered by this European standard. Regulator, tubing and flexible hoses are covered by others standards (EN 16129, EN 16436-1 and prEN 16436-2, etc.) and national regulations. This European standard does not lay down any specific requirements for the thermal efficiency of this type of appliances, but the requirements relating to combustion, which is a safety matter, ensure that the gas fuel will burn efficiently. However a method to measure the performance is described in informative Annex B. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 125:2010+A1:2015, Flame supervision devices for gas burning appliances — Thermoelectric flame supervision devices EN 126:2012, Multifunctional controls for gas burning appliances EN 161:2011+A3:2013, Automatic shut-off valves for gas burners and gas appliances EN 257:2010, Mechanical thermostats for gas-burning appliances EN 298:2012, Automatic burner control systems for burners and appliances burning gaseous or liquid fuels EN 437:2003+A1:2009, Test gases— Test pressures— Appliance categories EN 549:1994, Rubber materials for seals and diaphragms for gas appliances and gas equipment EN 751-1:1996, Sealing materials for metallic threaded joints in contact with 1st, 2nd and 3rd family gases and hot water— Part 1: Anaerobic jointing compounds EN 751-2:1996, Sealing materials for metallic threaded joints in contact with 1st, 2nd and 3rd family gases and hot water — Part 2: Non-hardening jointing compounds EN 751-3:1996, Sealing materials for metallic threaded joints in contact with 1st, 2nd and 3rd family gases and hot water — Part 3: Unsintered PTFE tapes EN 1106:2010, Manually operated taps for gas burning appliances SIST EN 14543:2017

EN 14543:2017 (E) 7 EN 13611:2015, Safety and control devices for burners and appliances burning gaseous and/or liquid fuels — General requirements EN 16617:2015, Pipework — Corrugated metal hose assemblies for combustible gas — Performance requirements, testing and marking EN 60335-1:2012, Household and similar electrical appliances — Safety — Part 1: General requirements (IEC 60335-1:2010, modified) 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 (IEC 60335-2-102:2004, modified) EN 60529:19911), Degrees of protection provided by enclosures (IP Code) (IEC 60529:1989) 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 fixed heating appliance appliance designed to be fixed, for example wall-mounted, on a table, ground-installed or suspended 3.2 movable heating appliance self-powered heating appliance in which the gas cylinder can be fitted inside the body or chassis of the appliance, and designed to be moved without requiring lifting 3.3 amply ventilated area volume in which the permanent opening directly connected to outdoors is at least 25 % of the walls surface 3.4 ignition device device to ignite one or more burners directly or indirectly, for instance through a flash tube Note 1 to entry: It may be either electric (resistance, spark, etc.) or thermal (pilot, etc.). 3.5 flame supervision device device including a sensing element which causes the gas supply to a burner to be opened or closed according to the presence or absence of the flame which activates the sensing element [SOURCE: EN 449:2002+A1:2007, 3.11] 3.6 atmosphere sensing device device that is designed to shut off the gas supply when the carbon dioxide concentration of the surrounding atmosphere exceeds a given level Note 1 to entry: Such a device normally comprises a vitiation sensitive pilot burner in conjunction with a suitable flame supervision device.

1) This document is currently impacted by the stand-alone amendments EN 60529:1991/A1:2000 and EN 60529:1991/A2:2013 and the corrigendum EN 60529:1991/corrigendum May 2013 and EN 60529:1991/AC:2016-12. SIST EN 14543:2017

EN 14543:2017 (E) 8 3.7 gas circuit part of the appliance where the gas circulates, between the gas inlet and the injector 3.8 injector component part that admits the gas into an aerated burner Note 1 to entry: There are two types of injectors: — calibrated injector: where the section of the outlet orifice is fixed; — adjustable injector: where the section of the outlet orifice is variable. 3.9 burner component that allows the gas to burn 3.9.1 pilot burner burner intended to ignite the main burner 3.9.2 main burner burner which provides the heating function of the appliance and is often called simply a “burner” 3.10 ignition delay time time between the moment when the gas is lit at the pilot (or main burner, if there is no pilot) and that when the flame supervision device acts 3.11 extinction delay time time between the moment when the pilot burner and main burner are extinguished by shutting off the gas supply and the moment when, after restoring the supply, the flow of gas to the appliance ceases through the action of the flame supervision device 3.12 calorific value quantity of heat produced by the complete combustion, at a constant pressure equal to 1 013,25 mbar, of a unit volume or mass of gas, the constituents of the combustible mixture being taken at reference conditions and the products of combustion being brought back to the same conditions Note 1 to entry: A distinction is made between: — the gross calorific value Hs: the water produced by combustion is assumed to be condensed; — the net calorific value Hi: the water produced by combustion is assumed to be in the vapour state. Note 2 to entry: The calorific value is expressed either in megajoules per cubic metre (MJ/m3) of dry gas under the reference conditions or in megajoules per kilogram (MJ/kg) of dry gas. SIST EN 14543:2017

EN 14543:2017 (E) 9 3.13 relative density d ratio of the masses of equal volumes of dry gas and dry air under the same conditions of temperature and pressure: 15 °C or 0 °C and 1 013, 25 mbar [SOURCE: EN 437:2003+A1:2009, 3.10] 3.14 Wobbe index gross Wobbe index Ws; net Wobbe index Wi ratio of the calorific value of a gas per unit volume and the square root of its relative density under the same reference conditions Note 1 to entry: The Wobbe index is said to be gross or net according to whether the calorific value used is the gross or net calorific value. Note 2 to entry: The Wobbe indices are expressed: — either in megajoules per cubic metre (MJ/m3) of dry gas under the reference conditions; — or in megajoules per kilogram (MJ/kg) of dry gas. 3.15 heat input Q quantity of energy used in unit time corresponding to the volumetric or mass flow rates, the calorific value used being either the net or gross calorific value Note 1 to entry: The heat input is expressed in kilowatts (kW). [SOURCE: EN 437:2003+A1:2009, 3.13] 3.16 nominal heat input Qn value of the heat input stated in the instructions 3.17 mass flow rate M mass of gas consumed by the appliance in unit time during continuous operation Note 1 to entry: The mass flow rate is expressed in kilograms per hour (kg/h) or grams per hour (g/h). [SOURCE: EN 437:2003+A1:2009, 3.15] 3.18 volume flow rate V volume of gas consumed by the appliance in unit time during continuous operation Note 1 to entry: The volume flow rate is expressed in cubic metres per hour (m3/h), litres per minute (l/min), cubic decimetres per hour (dm3/h) or cubic decimetres per second (dm3/s). [SOURCE: EN 437:2003+A1:2009, 3.16] SIST EN 14543:2017

EN 14543:2017 (E) 10 3.19 cold condition state of the appliance when it is at ambient temperature 3.20 reference conditions conditions which correspond to 15 °C, 1 013, 25 mbar, unless otherwise specified [SOURCE: EN 437:2003+A1:2009, 3.9] 4 Classification and designation The appliances covered by this European Standard operate with 3rd family gases defined in EN 437:2003+A1:2009, 6.1.2.3. For national situations see Annex A. 5 Design requirements 5.1 General Depending on their operating height, and according to Table 1 the patio heaters: — shall not exceed the nominal heat input stated; — shall be fitted with one or two grids to protect against accidental contact respectively with working surface and/or reflector. For adjustable appliances the minimum operating position shall be considered. Table 1 — Nominal heat input and protection grids relating to the height of the appliance Minimum operating height: h m Maximal nominal heat input kW (Hs) a Grid required to prevent from contact with the working surface a (see 5.7.6) Grid required to prevent from contact with the reflector b (see 5.10) h

¶ 1,3 6 YES YES 1,3 < h
¶ 1,6 10 YES YES 1,6 < h

¶ 2,0 15 YES NO h > 2,0 17 NO NO a The height h to be considered is the height of the lower rim of the working surface from the ground. b The height h to be considered is the height of the lower rim of the reflector from the ground. NOTE For appliances to be fixed on a table the height h is the sum of the heights of the table and the appliance.

5.2 Suitability for various gases No provision shall be made for adjusting any part of an appliance which has been pre-set by design. 5.3 Materials The quality and thickness of the materials used for the construction of an appliance shall be such that the performances are not impaired during use. SIST EN 14543:2017

EN 14543:2017 (E) 11 At the end of the tests of this standard the appliance and its components shall not present any alteration caused by mechanical, chemical and thermal effects. Metal parts shall be effectively protected against corrosion. Flexibles metallic hoses which are part

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