Residential cookers fired by solid fuel - Requirements and test methods

This European Standard specifies requirements relating to the design, manufacture, construction, safety and performance (efficiency and emission), instructions and marking together with associated test methods and test fuels for type testing residential coking apliances fired by solid fuel.
This standard is applicable to hand fired appliances whose primary function is to cook and whose secondary function is to provide heat into the space in which they are installed. Additionally, where fitted with a boiler they also provide domestic hot water and/or central heating. These appliances may burn either solid mineral fuels, peat briquettes or natural or manufactured wood logs or be multi-fuel in accordance with the appliance manufacturer’s instructions.
This standard is not applicable to hopper fed or mechanically fired appliances or those appliances having fan assisted combustion air.

Herde für feste Brennstoffe - Anforderungen und Prüfung

Diese Europäische Norm gilt für handbeschickte Herde, deren Hauptfunktion das Kochen und deren weitere Funktion die Beheizung des Aufstellungsraumes ist. Heizungsherde liefern auch erwärmtes Brauchwasser und/oder erwärmtes Wasser für zentrale Heizungsanlagen.
Diese Europäische Norm legt Anforderungen an Auslegung, Herstellung, Ausführung, Sicherheit und Leistungsvermögen (Wirkungsgrad und Emission) von Herden fest, die mit festen Brennstoffen befeuert werden (nachfolgend „Herd(e)“ genannt), und enthält diesbezügliche Anweisungen. Des Weiteren enthält sie Festlegungen für eine Konformitätsprüfung (z. B. Erstprüfung und werkseigene Produktionskontrolle) sowie für die Kennzeichnung dieser Produkte.
Diese Feuerstätten können entweder feste mineralische Brennstoffe, Braunkohlebriketts, Torfbriketts, Holzbriketts, Scheitholz oder mehrere dieser Brennstoffe nach Anleitung des Feuerstätten-Herstellers verfeuern.
Diese Norm gilt nicht für Feuerstätten, die aus einem Vorratsbehälter beschickt, mechanisch betrieben werden oder ein Verbrennungsluftgebläse haben.

Cuisiniéres domestiques à combustible solide - Exigences et méthodes d'essai

La présente norme est applicable aux cuisinières domestiques alimentées manuellement dont la fonction
principale est de cuire et la fonction secondaire de chauffer l’espace environnant. En plus, lorsqu’ils sont
équipés d’une chaudière, ces appareils fournissent de l’eau chaude et/ou assurent le chauffage central.
La présente Norme européenne spécifie les exigences relatives aux instructions de conception, fabrication,
construction, sécurité, performance (rendement et émission) des cuisinières domestiques à combustible
solide destinées à être implantées dans le volume habitable (ci-après désigné par les « appareils » et fournit
les instructions les concernant. En outre, elle fournit également des dispositions concernant l'évaluation de la
conformité (à savoir l’essai de type initial (ITT) et du contrôle de la production en usine et le marquage de ces
produits.
Ils peuvent utiliser des combustibles minéraux solides, des briquettes de lignite, des briquettes de tourbe, de
bûches de bois naturel ou manufacturé ou plusieurs combustibles conformément aux instructions du fabricant.
La présente norme ne s’applique pas aux appareils alimentés par trémie ou allumés mécaniquement ni aux
appareils équipés d’un ventilateur pour l’alimentation en air de combustion.

Štedilniki na trdna goriva - Zahteve in preskusne metode

General Information

Status
Not Published
Public Enquiry End Date
29-May-2011
Technical Committee
Current Stage
98 - Abandoned project (Adopted Project)
Start Date
07-Oct-2013
Due Date
12-Oct-2013
Completion Date
07-Oct-2013

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SLOVENSKI STANDARD
oSIST prEN 12815:2011
01-maj-2011
Štedilniki na trdna goriva - Zahteve in preskusne metode
Residential cookers fired by solid fuel - Requirements and test methods
Herde für feste Brennstoffe - Anforderungen und Prüfung
Cuisiniéres domestiques à combustible solide - Exigences et méthodes d'essai
Ta slovenski standard je istoveten z: prEN 12815
ICS:
97.040.20 âWHGLOQLNLGHORYQLSXOWL Cooking ranges, working
SHþLFHLQSRGREQLDSDUDWL tables, ovens and similar
appliances
oSIST prEN 12815:2011 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 12815:2011
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oSIST prEN 12815:2011
EUROPEAN STANDARD
DRAFT
prEN 12815
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2011
ICS 97.040.20 Will supersede EN 12815:2001
English Version
Residential cookers fired by solid fuel - Requirements and test
methods

Cuisiniéres domestiques à combustible solide - Exigences Herde für feste Brennstoffe - Anforderungen und Prüfung

et méthodes d'essai

This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 295.

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, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland 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
Management Centre: Avenue Marnix 17, B-1000 Brussels

© 2011 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 12815:2011: E

worldwide for CEN national Members.
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oSIST prEN 12815:2011
prEN 12815:2011 (E)
Contents Page

Foreword ............................................................................................................................................................. 5

1 Scope...................................................................................................................................................... 6

2 Normative references ........................................................................................................................... 6

3 Terms and definitions ........................................................................................................................... 7

4 Materials, design and construction ................................................................................................... 13

4.1 Production documentation ................................................................................................................ 13

4.2 General construction .......................................................................................................................... 13

4.2.1 Design, manufacture and assembly .................................................................................................. 13

4.2.2 Durability .............................................................................................................................................. 14

4.3 Boilers constructed of steel ............................................................................................................... 14

4.3.1 Parts subject to water pressure ........................................................................................................ 14

4.3.2 Nominal minimum wall thicknesses ................................................................................................. 16

4.4 Boilers constructed of cast iron ........................................................................................................ 16

4.5 Boiler shell tappings ........................................................................................................................... 17

4.6 Draining of boiler shell ....................................................................................................................... 18

4.7 Boiler waterways ................................................................................................................................. 18

4.7.1 Venting of the water sections ............................................................................................................ 18

4.7.2 Boilers used with direct water systems ............................................................................................ 18

4.7.3 Boilers used with indirect water systems ........................................................................................ 18

4.7.4 Water tightness ................................................................................................................................... 18

4.8 Ashpan and ash removal.................................................................................................................... 19

4.9 Firedoors and charging doors ........................................................................................................... 19

4.10 Oven door ............................................................................................................................................ 19

4.11 Flue spigot or socket .......................................................................................................................... 19

4.12 Internal flue gas diverter .................................................................................................................... 20

4.13 Control of flue gas .............................................................................................................................. 20

4.14 Combustion air supply ....................................................................................................................... 20

4.14.1 Primary air inlet control ...................................................................................................................... 20

4.14.2 Secondary air inlet control ................................................................................................................. 20

4.15 Flueways .............................................................................................................................................. 20

4.16 Front firebars and/or deepening plate .............................................................................................. 21

4.17 Hotplate and top plate ........................................................................................................................ 21

4.18 Main/additional ovens......................................................................................................................... 21

4.19 Bottomgrate ......................................................................................................................................... 21

4.20 Ashpit and ashpit cover/door ............................................................................................................ 21

4.21 Provision for cleaning the boiler heating surfaces and flue connector ........................................ 22

4.22 Oven temperature indicators ............................................................................................................. 22

5 Safety requirements ............................................................................................................................ 22

5.1 Temperature in integral fuel storage container ............................................................................... 22

5.2 Temperature of adjacent combustible materials ............................................................................. 22

5.3 Operating tools .................................................................................................................................... 22

5.4 Natural draught safety test ................................................................................................................ 23

5.5 Strength and leaktightness of boiler shells ..................................................................................... 23

5.6 Thermal discharge control ................................................................................................................. 23

5.7 Electrical safety ................................................................................................................................... 23

6 Performance requirements ................................................................................................................ 23

6.1 Flue draught ........................................................................................................................................ 23

6.2 Flue gas temperature .......................................................................................................................... 24

6.3 Emissions ............................................................................................................................................ 24

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oSIST prEN 12815:2011
prEN 12815:2011 (E)

6.3.1 Carbon monoxide emission ............................................................................................................... 24

6.3.2 Hydrocarbon and NO emissions ...................................................................................................... 25

6.3.3 Particulate emissions ......................................................................................................................... 25

6.4 Efficiency at nominal heat output ..................................................................................................... 25

6.5 Refuelling interval at nominal heat output ....................................................................................... 25

6.6 Nominal heat outputs ......................................................................................................................... 25

6.7 Oven heating ....................................................................................................................................... 26

6.8 Slow combustion and recovery ......................................................................................................... 26

6.9 Boiling test ........................................................................................................................................... 26

6.10 Appliances with alternative bottomgrate positions ........................................................................ 26

7 Appliance instructions ....................................................................................................................... 27

7.1 General ................................................................................................................................................. 27

7.2 Installation instructions...................................................................................................................... 27

7.3 User operating instructions ............................................................................................................... 28

8 Evaluation of conformity .................................................................................................................... 29

8.1 General ................................................................................................................................................. 29

8.2 Initial type testing ................................................................................................................................ 30

8.2.1 General ................................................................................................................................................. 30

8.2.2 Initial type testing for appliance changes ........................................................................................ 31

8.3 Factory production control (FPC) ..................................................................................................... 33

8.3.1 General ................................................................................................................................................. 33

8.3.2 Raw materials and components ........................................................................................................ 33

8.3.3 Control of inspection, measuring and test equipment ................................................................... 33

8.3.4 Process control ................................................................................................................................... 33

8.3.5 Product inspection, testing and evaluation ..................................................................................... 34

8.3.6 Non conforming products .................................................................................................................. 35

8.3.7 Corrective and preventive action ...................................................................................................... 35

8.3.8 Handling, storage, packaging, preservation and delivery .............................................................. 35

9 Marking ................................................................................................................................................ 35

Annex A (normative) Test methods ................................................................................................................ 37

A.1 Test environment ................................................................................................................................ 37

A.1.1 Ambient room temperature ................................................................................................................ 37

A.1.2 Cross-draught ..................................................................................................................................... 37

A.1.3 External sources ................................................................................................................................. 37

A.2 Test assembly ..................................................................................................................................... 37

A.2.1 General ................................................................................................................................................. 37

A.2.2 Trihedron ............................................................................................................................................. 38

A.2.3 Measurement section ......................................................................................................................... 38

A.2.4 Connection of the appliance to the measurement section ............................................................. 39

A.2.5 Water circuit for appliances with boilers .......................................................................................... 40

A.3 Measurement equipment .................................................................................................................... 40

A.4 Test procedures .................................................................................................................................. 41

A.4.1 Appliance installation ......................................................................................................................... 41

A.4.2 Calculation of fuel load....................................................................................................................... 41

A.4.3 Fuelling and de-ashing the fire .......................................................................................................... 41

A.4.4 Flue gas losses ................................................................................................................................... 42

A.4.5 Water heating output .......................................................................................................................... 42

A.4.6 Combustible heat losses in the residue ........................................................................................... 42

A.4.7 Measurement of oven temperature ................................................................................................... 43

A.4.8 Performance test regime .................................................................................................................... 43

A.4.9 Performance test at nominal heat output ......................................................................................... 46

A.4.10 Hotplate boiling test ............................................................................................................................ 48

A.4.11 Oven heating test ................................................................................................................................ 49

A.4.12 Slow combustion and recovery test ................................................................................................. 50

A.4.13 Oven shelf test .................................................................................................................................... 52

A.4.14 Oven door test ..................................................................................................................................... 52

A.4.15 Natural draught safety test ................................................................................................................ 52

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oSIST prEN 12815:2011
prEN 12815:2011 (E)

A.4.16 Temperature safety test...................................................................................................................... 54

A.4.17 Type pressure test for boilers ........................................................................................................... 56

A.4.18 Test for operation of thermal discharge control .............................................................................. 56

A.5 Test results .......................................................................................................................................... 58

A.6 Calculation methods ........................................................................................................................... 59

A.6.1 Notations and units used ................................................................................................................... 59

A.6.2 Formulae .............................................................................................................................................. 61

A.7 Test report ........................................................................................................................................... 64

Annex B (normative) Test fuels and recommended fuels ............................................................................ 80

B.1 General ................................................................................................................................................. 80

B.2 Test fuel ............................................................................................................................................... 80

B.2.1 Selection of test fuel ........................................................................................................................... 80

B.2.2 Storage, preparation and analysis .................................................................................................... 80

B.3 Tests for recommended fuels ............................................................................................................ 81

B.3.1 Basis of testing ................................................................................................................................... 81

B.3.2 Test methods and criteria .................................................................................................................. 81

Annex C (normative) Browning chart for oven heating test ........................................................................ 85

Annex ZA (informative) .................................................................................................................................... 86

Clauses of this European Standard addressing the provisions of the EU Construction

Products Directive .............................................................................................................................. 86

ZA.1 Scope and relevant characteristics ................................................................................................... 86

ZA.2 Procedure for the attestation of conformity of residential cookers fired by solid

fuels ...................................................................................................................................................... 89

ZA.3 CE Marking and labelling ................................................................................................................... 91

Bibliography ..................................................................................................................................................... 98

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oSIST prEN 12815:2011
prEN 12815:2011 (E)
Foreword

This document (prEN 12815:2011) has been prepared by Technical Committee CEN/TC 295

“Residential solid fuel burning appliances”, the secretariat of which is held by BSI.

This document is currently submitted to the CEN Enquiry.
This document will supersede EN 12815:2001.

This document has been prepared under the mandate M/129 given to CEN by the European

Commission and the European Free Trade Association, and supports essential requirements of EU

Directive.

For relationship with EU Directive, see informative Annex ZA, which is an integral part of this

document.

This document is a revision of the published standard EN 12815:2001 following comments received at

its 5 year review.
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oSIST prEN 12815:2011
prEN 12815:2011 (E)
1 Scope

This European Standard is applicable to hand fired residential cookers whose primary function is to

cook and whose secondary function is to provide heat into the space in which they are installed.

Additionally, where fitted with a boiler, they also provide domestic hot water and/or central heating.

This European Standard specifies requirements relating to the design, manufacture, construction,

safety and performance (efficiency and emission) of residential cookers fired by solid fuel (hereafter

referred to as “appliance(s)”) and provides instructions for them. Furthermore, it also gives provisions

for evaluation of conformity (i.e. initial type testing (ITT) and factory production control (FPC) and

marking of these products.

These appliances may burn either solid mineral fuels, lignite briquettes, peat briquettes, natural or

manufactured wood logs or be multi-fuel in accordance with the appliance manufacturer's instructions.

This standard is not applicable to hopper fed or mechanically fired appliances or those appliances

having fan assisted combustion air.
2 Normative references

This European Standard incorporates by dated or undated reference, provisions from other

publications. These normative references are cited at the appropriate places in the text and the

publications are listed hereafter. For dated references, subsequent amendments to or revisions of any

of these publications apply to this European Standard only when incorporated in it by amendment or

revision. For undated references the latest edition of the publication applies (including amendments).

EN 1561:1997, Founding — Grey cast irons
EN 1563:1997, Founding — Spheroidal graphite cast iron

EN 10025:1993, Hot rolled products of non-alloy structural steels — Technical delivery conditions

EN 10027-2:1992, Designation systems for steels — Part 2: Numerical system

EN 10028-2:1992, Flat products made of steels for pressure purposes — Part 2: Non-alloy and alloy

steels with specified elevated temperature properties

EN 10029:1991, Hot rolled steel plates 3 mm thick or above — Tolerances on dimensions, shape and

mass

EN 10088-2:1995, Stainless steels — Part 2: Technical delivery conditions for sheet/plate and strip for

general purposes

EN 10111:1998, Continuously hot-rolled low carbon steel sheet and strip for cold forming —Technical

delivery conditions
EN 10120:1996, Steel sheet and strip for welded gas cylinders

EN 60335-2-102, Household and similar electrical appliances — Safety — Particular requirements for

gas, oil and solid-fuel burning appliances having electrical connections
ISO 7-1:1994, Pipe threads where pressure-tight joints are made on the threads —
Part 1: Dimensions, tolerances and designation
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oSIST prEN 12815:2011
prEN 12815:2011 (E)

ISO 7-2: 2000, Pipe threads where pressure-tight joints are made on the threads —

Part 2: Verification by means of limit gauges

ISO 228-1:2000, Pipe threads where pressure-tight joints are not made on the threads —

Part 1: Designation, dimensions and tolerances

ISO 228-2:1987, Pipe threads where pressure-tight joints are not made on the threads —

Part 2: Verification by means of limit gauges

ISO 331:1983, Coal — Determination of moisture in the analysis sample — Direct gravimetric method

ISO 334:1992, Solid mineral fuels — Determination of total sulfur - Eschka method

ISO 351:1996, Solid mineral fuels — Determination of total sulfur — High temperature combustion

method
ISO 501:1981, Coal — Determination of the crucible swelling number
ISO 562:1998, Hard coal and coke — Determination of volatile matter

ISO 609:1996, Solid mineral fuels — Determination of carbon and hydrogen -High temperature

combustion method
ISO 687:1974, Coke — Determination of moisture in the analysis sample
ISO 1171:1997, Solid mineral fuels — Determination of ash content

ISO 1928:1995, Solid mineral fuels - Determination of gross calorific value by the bomb calorimetric

method, and calculation of net calorific value
ISO 2859 (all parts), Sampling procedures for inspection by attributes

CEN/TS 15883:2009, Residential solid fuel burning appliances — Emission test methods

3 Terms and definitions

For the purposes of this European Standard the following terms and definitions apply.

3.1
air inlet control

manual or automatic device to control the quantity of air supplied for combustion

3.2
ashpan
removable receptacle shaped to receive the residue falling from the firebed
3.3
ashpit
enclosed chamber designed to receive the residue or the ashpan
3.4
basic firebed
quantity of glowing embers which ensures ignition of the test fuel to be charged
NOTE The basic firebed may be specified by the manufacturer.
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oSIST prEN 12815:2011
prEN 12815:2011 (E)
3.5
boiler

vessel in which water is heated, intended for fitting in or forming an integral part of a solid fuel

appliance
3.6
boiler waterways
space within a boiler which contains water
3.7
bottomgrate

part of the appliance at the base of the firebox which supports the firebed through which the residue

falls into the ashpan or ashpit and through which combustion air and/or combustion gases may be

drawn
3.8
burning rate
reduction in the mass of fuel per unit of time
3.9
charging door
door which covers the refuelling opening
3.10
combustion air

air supplied to the fire-box, which is entirely or partially used to burn the fuel

3.11
combustion air selector

device for adjusting the primary and/or secondary air according to the type of fuel burnt

3.12
combustion control device

mechanism for setting the primary and/or secondary air in accordance with the burning rate required

3.13
combustion gases
compounds in gaseous form produced inside an appliance when fuel is burned
3.14
damper
mechanism to change the resistance to flow of the combustion gases
3.15
continuous burning appliance

heating appliance designed for slow burning over an extended period of time (e.g. overnight) and

meeting the requirements of the slow combustion test
3.16
de-ashing
process of clearing a fuelbed and discharging the residue into the
...

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