Residential solid fuel burning appliances - Part 2-4: Independent boilers - Nominal heat output up to 50 kW

This document is applicable to independent boiler appliances for solid fuel with a nominal output up to 50 kW (hand and automatically fired independent boilers (hereafter called appliances)).
The indented use of the appliances is space heating in residential buildings. This happens directly or via provision of hot water for central heating. They are designed for use only with open vented systems at a working pressure not exceeding 2 bar.
The appliances can burn one or more types of the following solid fuels as specified:
-   wood logs;
-   compressed untreated wood;
-   wood pellets;
-   lignite briquettes;
-   solid mineral fuels;
-   peat briquettes.
The appliances are operated closed and/or open.
The appliances are typed according to their tightness depending on their designation in accordance with a possible operation together with a room ventilation system.
This document is not applicable for:
-   appliances for hot water only production and heat output < 5 kW;
-   automatic stoking devices.
This document specifies procedures for assessment and verification of constancy of performance (AVCP) of characteristics of solid fuel burning independent boiler appliances.

Häusliche Feuerstätten für feste Brennstoffe - Teil 2-4: Wohnraum-Heizkessel für feste Brennstoffe - Nennwärmeleistung bis 50 kW

Dieses Dokument ist anzuwenden für Wohnraum-Heizkessel für feste Brennstoffe mit einer Nennwärmeleistungen bis 50 kW (hand- und automatisch beschickte Wohnraum-Heizkessel (im Folgenden „Geräte“ genannt)).
Der Verwendungszweck der Geräte ist Raumheizung in Wohngebäuden. Dies erfolgt direkt über die Bereitstellung von Warmwasser für die Zentralheizung. Sie sind nur für den Einsatz in offenen, entlüfteten Systemen mit einem Betriebsdruck von höchstens 2 bar vorgesehen.
Die Geräte können wie angegeben eine oder mehrere Arten der folgenden festen Brennstoffe verfeuern:
—   Scheitholz;
—   Holzbriketts;
—   Holzpellets;
—   Braunkohlenbriketts;
—   feste mineralische Brennstoffe;
—   Torfbriketts.
Die Geräte werden geschlossen und/oder offen betrieben.
Die Geräte werden nach ihrer Dichtheit entsprechend ihrer Bezeichnung in Abhängigkeit von einem möglichen Betrieb zusammen mit einem Raumlüftungssystem typisiert.
Dieses Dokument ist nicht anzuwenden auf:
—    Geräte, die nur der Warmwasserbereitung dienen und eine Wärmeleistung von weniger als 5 kW haben;
—   automatische Feuerungsanlagen.
Dieses Dokument legt das Verfahren für die Bewertung und Überprüfung der Leistungsbeständigkeit (AVCP) der Eigenschaften von Raumheizern für feste Brennstoffe fest.

Appareils de chauffage domestiques à combustible solide - Partie 2-4 : Chaudières à installer dans le volume habitable - Puissance utile nominale inférieure ou égale à 50 kW

Le présent document s’applique aux chaudières à combustible solide à installer dans le volume habitable, de puissance utile nominale inférieure ou égale à 50 kW (chaudières domestiques à combustion manuelle et automatique à installer dans le volume habitable, ci-après dénommées « appareils »).
L’usage prévu des appareils est le chauffage des locaux dans les bâtiments résidentiels, soit de façon directe soit par la fourniture d’eau chaude à des fins de chauffage central. Ils ne sont conçus que pour être utilisés avec des systèmes à expansion ouverts à une pression de service ne dépassant pas 2 bar.
Les appareils peuvent utiliser un ou plusieurs des types de combustibles solides suivants, comme spécifié :
-   bûches de bois ;
-   bois compressé non traité ;
-   granulés de bois ;
-   briquettes de lignite ;
-   combustibles minéraux solides ;
-   briquettes de tourbe.
Ces appareils fonctionnent fermés et/ou ouverts.
Ils sont classés en fonction de leur étanchéité, de leur désignation et d’un fonctionnement éventuel avec un système de ventilation des locaux.
Le présent document ne s’applique pas :
-   aux appareils uniquement destinés à la production d’eau chaude ayant une puissance utile inférieure à 5 kW ;
-   aux dispositifs à chargement automatique.
Le présent document spécifie des modes opératoires pour l’évaluation et la vérification de la constance des performances (EVCP) des caractéristiques des chaudières de chauffage à combustible solide à installer dans le volume habitable.

Grelne naprave na trdna goriva za stanovanjske stavbe - 2-4. del: Grelni kotli - Nazivna grelna moč do 50 kW

General Information

Status
Published
Publication Date
20-Dec-2022
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Start Date
21-Dec-2022
Due Date
26-Feb-2023
Completion Date
21-Dec-2022

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SLOVENSKI STANDARD
SIST EN 16510-2-4:2023
01-marec-2023
Nadomešča:
SIST EN 12809:2003
SIST EN 12809:2003/A1:2005
SIST EN 12809:2003/A1:2005/AC:2006
SIST EN 12809:2003/A1:2005/AC:2008
SIST EN 12809:2003/AC:2004
SIST EN 12809:2003/AC:2006
Grelne naprave na trdna goriva za stanovanjske stavbe - 2-4. del: Grelni kotli -
Nazivna grelna moč do 50 kW

Residential solid fuel burning appliances - Part 2-4: Independent boilers - Nominal heat

output up to 50 kW

Häusliche Heizgeräte für feste Brennstoffe - Teil 2-4: Heizkessel für feste Brennstoffe -

Nennwärmeleistung bis 50 kW
Equipement de chauffage domestique - Partie 2-4 : Chaudières domestiques à
combustible solide - Puissance calorifique nominale inférieure ou égale à 50 kW
Ta slovenski standard je istoveten z: EN 16510-2-4:2022
ICS:
97.100.30 Grelniki na trdo gorivo Solid fuel heaters
SIST EN 16510-2-4:2023 en,fr,de

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

---------------------- Page: 1 ----------------------
SIST EN 16510-2-4:2023
---------------------- Page: 2 ----------------------
SIST EN 16510-2-4:2023
EN 16510-2-4
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2022
EUROPÄISCHE NORM
ICS 91.140.65; 97.100.30 Supersedes EN 12809:2001
English Version
Residential solid fuel burning appliances - Part 2-4:
Independent boilers - Nominal heat output up to 50 kW

Appareils de chauffage domestiques à combustible Häusliche Feuerstätten für feste Brennstoffe - Teil 2-4:

solide - Partie 2-4 : Chaudières à installer dans le Heizkessel für feste Brennstoffe - Nennwärmeleistung

volume habitable - Puissance utile nominale inférieure bis 50 kW
ou égale à 50 kW
This European Standard was approved by CEN on 23 October 2022.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this

European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references

concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN

member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by

translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management

Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,

Finland, 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.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 16510-2-4:2022 E

worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN 16510-2-4:2023
EN 16510-2-4:2022 (E)
Contents Page

European foreword ....................................................................................................................................................... 4

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

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

3 Terms and definitions ................................................................................................................................... 6

4 Characteristics ................................................................................................................................................. 6

4.1 Protection of combustible materials ........................................................................................................ 7

4.2 Carbon monoxide emission (CO) ............................................................................................................... 8

4.3 Nitrogen oxides (NO ) emissions .............................................................................................................. 8

4.4 Emission of organic gaseous compounds (OGC) .................................................................................. 9

4.5 Particulate matter (PM) emissions ........................................................................................................... 9

4.6 Safety and accessibility in use ................................................................................................................. 10

4.6.1 General ............................................................................................................................................................. 10

4.6.2 Flue gas outlet temperature at nominal heat output ...................................................................... 10

4.6.3 Flue gas outlet temperature at part load heat output..................................................................... 10

4.6.4 Minimum flue draught................................................................................................................................ 10

4.6.5 Flue gas mass flow at nominal heat output ......................................................................................... 12

4.6.6 Flue gas mass flow at part load heat output ....................................................................................... 12

4.6.7 Fire safety of installation to the chimney ............................................................................................ 12

4.7 Energy economy and heat retention ..................................................................................................... 12

4.7.1 Space heat output at nominal heat output .......................................................................................... 12

4.7.2 Water heat output, if existing at nominal heat output.................................................................... 12

4.7.3 Efficiency at nominal heat output .......................................................................................................... 13

4.7.4 Space heat output at part load heat output ........................................................................................ 13

4.7.5 Water heat output, if existing at part load heat output .................................................................. 13

4.7.6 Efficiency at part load heat output ......................................................................................................... 13

4.7.7 Seasonal space heating efficiency at appliance’s nominal heat output .................................... 13

4.7.8 Energy efficiency .......................................................................................................................................... 14

4.7.9 Electric power consumption at nominal heat output, if existing ................................................ 14

4.7.10 Electric power consumption at part load heat output, if existing .............................................. 14

4.7.11 Standby mode power consumption, if existing ................................................................................. 15

4.8 Environmental sustainability .................................................................................................................. 15

5 Descriptive features .................................................................................................................................... 16

5.1 Data for potential use with room ventilation systems: type of appliance (in relation

to its tightness to the room) ..................................................................................................................... 16

5.2 Data for the building's statics: appliance's mass .............................................................................. 16

5.3 Materials and construction elements ................................................................................................... 16

5.3.1 General ............................................................................................................................................................. 16

5.3.2 General stresses ............................................................................................................................................ 17

5.3.3 Integral boiler or heat exchanger .......................................................................................................... 17

5.4 Risk of burning fuel falling out ................................................................................................................ 17

5.5 Temperature rise in the fuel storage .................................................................................................... 17

5.6 Temperature rise of the operating components ............................................................................... 17

5.7 Spillage of flue gases into the room ....................................................................................................... 17

5.7.1 Possible spillage of CO, if relevant for the fuel type......................................................................... 17

5.7.2 Open operation ............................................................................................................................................. 17

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SIST EN 16510-2-4:2023
EN 16510-2-4:2022 (E)

5.8 Cleanability ..................................................................................................................................................... 17

5.8.1 Heating surfaces ............................................................................................................................................ 17

5.8.2 Flueways .......................................................................................................................................................... 17

5.8.3 Ashpan .............................................................................................................................................................. 18

5.8.4 Bottomgrate .................................................................................................................................................... 18

5.8.5 Damper ............................................................................................................................................................. 18

5.8.6 Fan-cut-out-device ....................................................................................................................................... 18

5.9 Strength and leak tightness of boiler shells ........................................................................................ 18

6 Assessment and verification of constancy of performance - AVCP ............................................. 18

6.1 General ............................................................................................................................................................. 18

6.2 Assessment of performance ...................................................................................................................... 18

6.2.1 General ............................................................................................................................................................. 18

6.2.2 Test samples, testing and compliance criteria ................................................................................... 19

6.3 Verification of constancy of performance ............................................................................................ 21

6.3.1 Factory production control (FPC) ........................................................................................................... 21

Annex A (normative) Test methods .................................................................................................................... 25

A.1 Test environment ......................................................................................................................................... 25

A.2 Test assembly ................................................................................................................................................. 25

A.3 Measurement equipment........................................................................................................................... 25

A.4 Test procedures ............................................................................................................................................ 25

A.5 Test results ...................................................................................................................................................... 28

A.6 Calculation methods .................................................................................................................................... 28

A.7 Test report ...................................................................................................................................................... 28

Annex ZA (informative) Relationship of this European Standard with Regulation (EU) No.

305/2011 ......................................................................................................................................................... 29

ZA.1 Scope and relevant characteristics ........................................................................................................ 29

ZA.2 System of Assessment and Verification of Constancy of Performance (AVCP) ...................... 32

ZA.3 Assignment of AVCP tasks ......................................................................................................................... 33

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SIST EN 16510-2-4:2023
EN 16510-2-4:2022 (E)
European foreword

This document (EN 16510-2-4:2022) has been prepared by Technical Committee CEN/TC 295

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

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 June 2023, and conflicting national standards shall be

withdrawn at the latest by November 2025.

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CEN shall not be held responsible for identifying any or all such patent rights.

This document supersedes EN 12809:2001 as amended and corrected. In relation to EN 12809:2001 as

amended and corrected the following changes have been made:

— measurement methods for NO , hydrocarbon and particulate matter emissions for solid fuel burning

appliances;

— specifications for classification of solid fuel burning appliances and system boundaries for room

sealed appliances;

— requirements for the safety of solid fuel burning appliances with water-bearing components added;

— Annex ZA updated according to requirements of M/577;

— energy efficiency and energy class labelling and seasonal space heating efficiency added;

— requirements for environmental sustainability added.

This document has been prepared under a standardization request given to CEN by the European

Commission and the European Free Trade Association.

For relationship with (EU) Regulation 305/2011, see informative Annex ZA, which is an integral part of

this document.

The structure of EN 16510, Residential solid fuel burning appliances, is as follows:

— Part 1: General requirements and test methods;
— Part 2-1: Roomheaters;
— Part 2-2: Inset appliances including open fires;
— Part 2-3: Cookers;
— Part 2-4: Independent boilers — Nominal heat output up to 50 kW;
— Part 2-5: Slow heat release appliances;

— Part 2-6: Mechanically by wood pellets fed roomheaters, inset appliances and cookers.

Other sections of Part 2 will be added to cover residential solid fuel burning appliances not included in

parts 2-1 to 2-6.
---------------------- Page: 6 ----------------------
SIST EN 16510-2-4:2023
EN 16510-2-4:2022 (E)

Subclauses and Figures which are additional to those in EN 16510-1:2022 are numbered starting with

401. Annexes which are additional to those in EN 16510-1 are numbered starting with DA.

Any feedback and questions on this document should be directed to the users’ national standards body.

A complete listing of these bodies can be found on the CEN website.

According to the CEN-CENELEC Internal Regulations, the national standards organisations of the

following countries are bound to implement this European Standard: 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 the United

Kingdom.
---------------------- Page: 7 ----------------------
SIST EN 16510-2-4:2023
EN 16510-2-4:2022 (E)
1 Scope

This document is applicable to independent boiler appliances for solid fuel with a nominal output up to

50 kW (hand and automatically fired independent boilers (hereafter called appliances)).

The indented use of the appliances is space heating in residential buildings. This happens directly or via

provision of hot water for central heating. They are designed for use only with open vented systems at a

working pressure not exceeding 2 bar.

The appliances can burn one or more types of the following solid fuels as specified:

— wood logs;
— compressed untreated wood;
— wood pellets;
— lignite briquettes;
— solid mineral fuels;
— peat briquettes.
The appliances are operated closed and/or open.

The appliances are typed according to their tightness depending on their designation in accordance with

a possible operation together with a room ventilation system.
This document is not applicable for:
— appliances for hot water only production and heat output < 5 kW;
— automatic stoking devices.

This document specifies procedures for assessment and verification of constancy of performance (AVCP)

of characteristics of solid fuel burning independent boiler appliances.
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.

EN 15804:2012+A2:2019, Sustainability of construction works — Environmental product declarations —

Core rules for the product category of construction products

EN 16510-1:2022, Residential solid fuel burning appliances — Part 1: General requirements and test

methods
3 Terms and definitions

For the purposes of this document, the terms and definitions given in EN 16510-1:2022 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/
---------------------- Page: 8 ----------------------
SIST EN 16510-2-4:2023
EN 16510-2-4:2022 (E)
4 Characteristics
4.1 Protection of combustible materials

The performance of the appliance in relation to protection of combustible materials shall be determined

in accordance with EN 16510-1:2022, 5.6.

When tested in accordance with EN 16510-1:2022, 5.6, the protection measure(s) as specified according

to table 1 shall be given as minimum distance to combustible materials and if appropriate as material

type and thickness of protective insulation material.

The protection measures as specified shall be given in [mm] as an integer according to EN 16510-1:2022,

Table 22, no. 33, 34, 35, 36, 37, 38, 39 and 41 (d , d , d , d , d , d , d , s).
R S C P F L B
Table 1 — Protection of combustible materials
Protection measure Declared clearance distance to Protective
combustible material or thickness insulation material
of protective insulation material if any
[mm]
Minimum distance to --
combustible materials –
bottom (d )
Minimum distance to --
combustible materials –
floor in front (d )
Minimum distance to --
combustible materials –
ceiling (d )
Minimum distance to --
combustible materials – rear
Minimum distance to --
combustible materials – side
(d )
Minimum distance to --
combustible materials – side
radiation area (d )
Minimum distance to --
adjacent combustible
materials (e.g. furniture)
(d )
Protective insulation
material (s)
---------------------- Page: 9 ----------------------
SIST EN 16510-2-4:2023
EN 16510-2-4:2022 (E)
4.2 Carbon monoxide emission (CO)

The performance of the appliance in relation to carbon monoxide emission at nominal heat output and at

part load heat output (if part load is specified) shall be determined in accordance with EN 16510-1:2022,

6.3.1 and 6.3.2.

The CO value if specified at nominal heat output and at part load heat output (if part load is specified) is

to be given in [mg/m ] as an integer according to EN 16510-1:2022, Table 22, no. 17 (CO (13 % O )).

nom 2

When tested in accordance with EN 16510-1:2022, 6.3.2 the CO emission at nominal heat output shall not

exceed the threshold levels as given in Table 2.
Table 2 — Threshold levels for CO emission
Appliance type Threshold level at 13 % O
open fronted solid fuel local space heaters 2000 mg/m
closed fronted solid fuel local space heaters using
solid fuel other than compressed wood in the form
1500 mg/m
of pellets including cookers
closed fronted solid fuel local space heaters using
compressed wood in form of pellets including
300 mg/m
cookers
4.3 Nitrogen oxides (NO ) emissions

The performance of the appliance in relation to nitrogen oxides emissions at nominal heat output and at

part load heat output (if part load is specified) shall be determined in accordance with EN 16510-1:2022,

6.3.1 and 6.3.3.

The NO value if specified at nominal heat output and at part load heat output (if part load is specified) is

to be given in [mg/m ] as an integer according to EN 16510-1:2022, Table 22, no. 20 (NO (13 % O )).

xnom 2

When tested in accordance with EN 16510-1:2022, 6.3.3 the NO emissions at nominal heat output shall

not exceed the threshold levels as given in Table 3.
Table 3 — Threshold levels for NOx emission (expressed as NO )
Appliance type Threshold level at 13 % O
open fronted solid fuel local space heaters, closed
fronted solid fuel local space heaters and cookers
200 mg/m
using biomass
open fronted solid fuel local space heaters, closed
fronted solid fuel local space heaters and cookers
300 mg/m
using fossil solid fuel
---------------------- Page: 10 ----------------------
SIST EN 16510-2-4:2023
EN 16510-2-4:2022 (E)
4.4 Emission of organic gaseous compounds (OGC)

The performance of the appliance in relation to organic gaseous compounds emission at nominal heat

output and at part load heat output (if part load is specified) shall be determined in accordance with

EN 16510-1:2022, 6.3.1 and 6.3.4.

The OGC value if specified at nominal heat output and at part load heat output (if part load is specified)

is to be given in [mg/m ] as an integer according to EN 16510-1:2022, Table 22, no. 23 (OGC

nom
(13 % O )).

When tested in accordance with EN 16510-1:2022, 6.3.4 the OGC emission at nominal heat output shall

not exceed the threshold levels as given in Table 4.
Table 4 — Threshold levels for OGC emission (expressed as C)
Appliance type Threshold level at 13 % O
open fronted solid fuel local space heaters
120 mg C/m
closed fronted solid fuel local space heaters using
solid fuel other than compressed wood in the form 120 mg C/m
of pellets including cookers
closed fronted solid fuel local space heaters using
compressed wood in form of pellets including
60 mg C/m
cookers
4.5 Particulate matter (PM) emissions

The performance of the appliance in relation to particulate matter emissions at nominal heat output and

at part load heat output (if part load is specified) shall be determined in accordance with

EN 16510-1:2022,6.3.1 and 6.3.5.

The particulate matter value if specified at nominal heat output and at part load heat output (if part load

is specified) is to be given in [mg/m ] as an integer according to EN 16510-1:2022, Table 22, no. 26

(PM (13 % O )).
nom 2

When tested in accordance with EN 16510-1:2022, 6.3.5 the particulate matter (PM) emissions at

nominal heat output shall not exceed the threshold levels as given in Table 5.
Table 5 — Threshold levels for PM emission
Appliance type Threshold level at 13 % O
open fronted solid fuel local space heaters 50 mg/m
closed fronted solid fuel local space heaters using
solid fuel other than compressed wood in the form
40 mg/m
of pellets and cookers
closed fronted solid fuel local space heaters using
20 mg/m
compressed wood in form of pellets
---------------------- Page: 11 ----------------------
SIST EN 16510-2-4:2023
EN 16510-2-4:2022 (E)
4.6 Safety and accessibility in use
4.6.1 General

The data for the installation to a chimney are to be evaluated at nominal heat output. Specific data is to

be evaluated at safety test heat output. Additional data is to be evaluated at part load heat output, if part

load is specified.
4.6.2 Flue gas outlet temperature at nominal heat output

The performance of the appliance in relation to flue gas outlet temperature at nominal heat output shall

be determined in accordance with EN 16510-1:2022, 6.2.1.

The value of the flue gas outlet temperature for the installation of the appliance to a chimney if specified

is to be given in [°C] as an integer according to EN 16510-1:2022, Table 22, no. 47 (T ).

snom
4.6.3 Flue gas outlet temperature at part load heat output

The performance of the appliance in relation to flue gas outlet temperature at part load heat output (if

part load is specified) shall be determined in accordance with EN 16510-1:2022, 6.2.1.

The value of the flue gas outlet temperature at part load heat output (if part load is specified) for the

installation of the appliance to a chimney if specified is to be given in [°C] as an integer according to

EN 16510-1:2022, Table 22, no. 48 (T ).
spart
4.6.4 Minimum flue draught
4.6.4.1 General

The flue draught values, related to the appliance's nominal heat output, given in Figure 1, shall be taken

as the values for the static pressure to be applied in the measurement section (see EN 16510-1:2022,

Figures A.10, A.11 and A.12) when undertaking the nominal heat output test in accordance with A.4.7,

the part load heat output test in accordance with A.4.8, the slow combustion test for continuous burning

appliances in accordance with A.4.9 and the safety test in accordance with A.4.10.

Where the flue draught values given in Figure 1 need to be exceeded in order to obtain the specified

nominal output, the required flue draught shall be clearly stated in the appliance's installation

instructions.
This means that a value above 12 Pa, but not below 12 Pa may be specified.
---------------------- Page: 12 ----------------------
SIST EN 16510-2-4:2023
EN 16510-2-4:2022 (E)
Key
X nominal heat output (kW)
Y flue draught (Pa)
1 nominal heat output test
2 slow combustion test
Figure 1 — Flue draught values

When undertaking the nominal heat output test in accordance with A.4.7 the flue static pressure shall be

set to the value based upon the claimed nominal heat output as given in Figure 1 or, if necessary, such

higher value specified and the mean value shall be within ±1 Pa of this specified flue draught value.

During the test, the individual measurements shall be kept within ±2 Pa of this specified flue draught

value.

NOTE It is not allowed to set the value below that given in Figure 1 e.g. 19 Pa for a given value of 20 Pa.

For the slow combustion test in accordance with A.4.9 the static pressure shall be a target value of 6 Pa

as given in Figure 1 and shall be kept within ±1 Pa of this specified value.

For appliances having a fan assisted primary air supply, the static pressure in the measurement section

shall be set to the value which gives the specified over-firebed pressure.
4.6.4.2 Flue draught test point

A test tapping for the measurement of the flue draught shall be provided either in the boiler flueway or

in the flue gas connector.

If a draught regulator is incorporated, the test measurement point shall be taken before the draught

regulator.
4.6.4.3 Minimum flue draught at nominal heat output

The performance of the appliance in relation to the minimum flue draught at nominal heat output shall

be determined in accordance with 4.6.4.1 and 4.6.4.2.

The minimum value of the flue draught if specified at nominal heat output for the installation of the

appliance to a chimney is to be given in [Pa] as an integer according to EN 16510-1:2022, Table 22, no.

29 (p ).
nom
4.6.4.4 Minimum flue draught at part load heat output

The performance of the appliance in relation to the minimum flue draught at part load heat output (if part

load is specified) shall
...

SLOVENSKI STANDARD
oSIST prEN 16510-2-4:2021
01-april-2021
Stanovanjske grelne naprave na trdna goriva - 2-4. del: Grelni kotli - Nazivna
grelna moč do 50 kW

Residential solid fuel burning appliances - Part 2-4: Independent boilers - Nominal heat

output up to 50 kW

Häusliche Heizgeräte für feste Brennstoffe - Teil 2-4: Heizkessel für feste Brennstoffe -

Nennwärmeleistung bis 50 kW
Equipement de chauffage domestique - Partie 2-4 : Chaudières domestiques à
combustible solide - Puissance calorifique nominale inférieure ou égale à 50 kW
Ta slovenski standard je istoveten z: prEN 16510-2-4
ICS:
97.100.30 Grelniki na trdo gorivo Solid fuel heaters
oSIST prEN 16510-2-4:2021 en,fr,de

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

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oSIST prEN 16510-2-4:2021
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oSIST prEN 16510-2-4:2021
DRAFT
EUROPEAN STANDARD
prEN 16510-2-4
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2021
ICS 91.140.65; 97.100.30
English Version
Residential solid fuel burning appliances - Part 2-4:
Independent boilers - Nominal heat output up to 50 kW

Equipement de chauffage domestique - Partie 2-4 : Häusliche Heizgeräte für feste Brennstoffe - Teil 2-4:

Chaudières domestiques à combustible solide - Heizkessel für feste Brennstoffe - Nennwärmeleistung

Puissance calorifique nominale inférieure ou égale à 50 bis 50 kW

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, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and

United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are

aware and to provide supporting documentation.

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

notice and shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 16510-2-4:2021 E

worldwide for CEN national Members.
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oSIST prEN 16510-2-4:2021
prEN 16510-2-4:2021 (E)
Contents Page

European foreword ....................................................................................................................................................... 4

1 Scope .................................................................................................................................................................... 5

2 Normative references .................................................................................................................................... 5

3 Terms and definitions ................................................................................................................................... 5

4 Descriptive features ....................................................................................................................................... 5

5 Appliances Performance requirements in relation to safety .......................................................... 6

6 Appliances Performance requirements in relation to the appliance operation ...................... 6

7 Appliance instructions .................................................................................................................................. 8

8 Sustainable use of natural resources ....................................................................................................... 8

9 Assessment and verification of constancy of performance - AVCP ............................................... 9

10 Marking and technical datasheet .............................................................................................................. 9

Annex A (normative) Test methods .................................................................................................................... 10

A.1 Test environment ......................................................................................................................................... 10

A.2 Test assembly ................................................................................................................................................ 10

A.3 Measurement equipment .......................................................................................................................... 10

A.4 Test procedures ............................................................................................................................................ 10

A.5 Test results ..................................................................................................................................................... 12

A.6 Calculation methods .................................................................................................................................... 12

A.7 Test report ...................................................................................................................................................... 12

Annex B (normative) Test fuels and recommended fuels .......................................................................... 14

Annex C (informative) Arrangement for measuring the leakage rate ................................................... 15

Annex D (normative) Measuring procedure for nitrogen oxides (NOx) ............................................... 16

Annex E (normative) Measuring procedure for organic gaseous compounds (OGC) ...................... 17

Annex F (normative) Measuring procedure for particulate matter (PM) ............................................. 18

Annex G (informative) Guideline for the characteristics to be taken into account in order to

decide on families of appliances ............................................................................................................. 19

Annex H (informative) Deviation of measuring results as a basis for market surveillance

measurements ............................................................................................................................................... 20

Annex I (informative) Standing Air Loss ........................................................................................................... 21

Annex J (informative) A-deviations .................................................................................................................... 22

Annex K (normative) Energy Label ..................................................................................................................... 23

Annex ZA (informative) Relationship of this European Standard with Regulation (EU) No.

305/2011 ........................................................................................................................................................ 24

ZA.1 Scope and relevant characteristics ........................................................................................................ 24

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oSIST prEN 16510-2-4:2021
prEN 16510-2-4:2021 (E)

ZA.2 System of Assessment and Verification of Constancy of Performance (AVCP) ...................... 27

ZA.3 Assignment of AVCP tasks ......................................................................................................................... 27

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oSIST prEN 16510-2-4:2021
prEN 16510-2-4:2021 (E)
European foreword

This document (prEN 16510-2-4:2021) 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 together with prEN 16510-1:2021 will supersede EN 12809:2001 as amended and

corrected.

This document has been prepared under a standardization request given to CEN/CENELEC by the

European Commission and the European Free Trade Association.

For relationship with (EU) Regulation 305/2011, see informative Annex ZA, which is an integral part of

this document.

The structure of EN 16510, Residential solid fuel burning appliances, is as follows:

— Part 1: General requirements and test methods;
— Part 2-1: Roomheaters;
— Part 2-2: Inset appliances including open fires;
— Part 2-3: Cookers;
— Part 2-4: Independent boilers – Nominal heat output up to 50 kW.
— Part 2-5: Slow heat release appliances;

— Part 2-6: Mechanically by wood pellets fed roomheaters, inset appliances and cookers.

Other sections of Part 2 will be added to cover residential solid fuel burning appliances not included in

parts 2-1 to 2-6.

This Part 2-4 supplements or modifies the corresponding clauses in EN 16510-1, so as to convert that

publication into the European Standard: Residential solid fuel burning appliances – Requirements and test

methods for independent boilers – Nominal heat output up to 50 kW .

This document is expected to be used in conjunction with EN 16510-1. This document refers to Clauses

of prEN 16510-1:2021 or adapts Clauses by stating “with the following modification”, “with the following

addition”, “is replaced by the following” or “shall not be applicable” in the corresponding Clause. This

document adds Clauses or Subclauses to the structure of prEN 16510-1:2021 which are particular to this

document.

Subclauses and Figures which are additional to those in prEN 16510-1:2021 are numbered starting with

401. Annexes which are additional to those in EN 16510-1 are numbered starting with DA.

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oSIST prEN 16510-2-4:2021
prEN 16510-2-4:2021 (E)
1 Scope

This document is applicable to hand and automatically fired residential independent boilers (hereafter

called appliances) having a nominal heat outputs up to 50 kW.

The primary function of the appliance is to provide hot water for central heating and/or domestic use. In

addition to their primary function of providing hot water these appliances also provide space heating to

the place of installation. They are designed for use only with open vented systems at a working pressure

not exceeding 2 bar.

The appliances can burn one or more types of the following solid fuels in accordance with the appliance

manufacturer’s instructions:
— wood logs;
— compressed untreated wood;
— wood pellets;
— lignite briquettes;
— solid mineral fuels;
— peat briquettes.
The appliances are operated closed and / or open.

The appliances are typed according to their tightness depending on their designation in accordance with

a possible operation together with a room ventilation system.

This document is not applicable to appliances for hot water only production and having heat outputs of

less than 5 kW.
This document is also not applicable for automatic stoking devices.

This document is used in conjunction with EN 16510-1 of which it is an integral part.

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.

prEN 16510-1:2021, Residential solid fuel burning appliances - Part 1: General requirements and test

methods
3 Terms and definitions

For the purposes of this document, the terms and definitions given in prEN 16510-1:2021 apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https://www.iso.org/obp
— IEC Electropedia: available at http://www.electropedia.org/
4 Descriptive features

prEN 16510-1:2021, Clause 4, shall be applicable with the following modifications.

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oSIST prEN 16510-2-4:2021
prEN 16510-2-4:2021 (E)
4.3 Product documentation
prEN 16510-1:2021, 4.3 shall be applicable.
4.4 Construction and materials
prEN 16510-1:2021, 4.4 shall be applicable with the following addition.
Additional clauses in 4.4.
4.4.401 Flue draught test point

A test tapping for the measurement of the flue draught shall be provided either in the boiler flueway or

in the flue gas connector.

If a draught regulator is incorporated, the test measurement point shall be taken before the draught

regulator.
4.4.402 Fan cut-out safety device

If the appliance is fitted with a forced draught fan to provide combustion air, then a cut-out safety device

shall be provided to switch off the fan in the event of a flue blockage (see 4.4.401).

5 Appliances Performance requirements in relation to safety
prEN 16510-1:2021, Clause 5, shall be applicable.
6 Appliances Performance requirements in relation to the appliance operation

prEN 16510-1:2021, Clause 6, shall be applicable with the following modification.

6.4 Efficiency
prEN 16510-1:2021, 6.4, shall be applicable with the following modification.
Addition after the 1 paragraph:

The manufacturer’s declared efficiency value shall be equal to or exceed the value given by the following

Figure 401.
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oSIST prEN 16510-2-4:2021
prEN 16510-2-4:2021 (E)
Key
X nominal heat output (kW)
Y efficiency (%)
1 test fuels other than 2 or 3
2 bituminous coal, lignite briquettes & peat briquettes
3 wood logs
Figure 401 — Efficiency at nominal heat output
6.5 Flue draught
prEN 16510-1:2021, 6.5, shall be applicable with the following modifications.
Replacement of Figure 2:
Key
X nominal heat output (kW)
Y flue draught (Pa)
1 nominal heat output test
2 slow combustion test
Figure 2 — Flue draught values
Replacement of the final two paragraphs including Note 2:

When undertaking the nominal heat output test in accordance with A.4.7 the flue static pressure shall be

set to the value based upon the claimed nominal heat output as given in Figure 2 or, if necessary, such

higher value specified by the manufacturer and the mean value shall be within ± 1 Pa of this specified flue

draught value. During the test, the individual measurements shall be kept within ± 2 Pa of this specified

flue draught value.
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oSIST prEN 16510-2-4:2021
prEN 16510-2-4:2021 (E)

NOTE 2 It is not allowed to set the value below that given in Figure 2 e.g. 19 Pa for a given value of 20 Pa.

For the slow combustion test in accordance with A.4.9 the static pressure shall be a target value of 6 Pa

as given in Figure 1 and shall be kept within ± 1 Pa of this specified value.

For appliances having a fan assisted primary air supply, the static pressure in the measurement section

shall be set to that value which gives the manufacturer’s declared over-firebed pressure.

6.6 Recovery test
prEN 16510-1:2021, 6.6, shall be applicable with the following modification.
Replacement of paragraph 2:

Recovery shall be deemed satisfactory if a small part of the fuel is visibly ignited within 30 min with a flue

draught of (6 ± 1) Pa under the test conditions specified in A.4.9.4.
6.7 Refuelling intervals
prEN 16510-1:2021, 6.7, shall be applicable with the following modification.
Replacement of Table 12:
Table 12 — Minimum refuelling intervals
Appliance type Test fuel type Minimum refuelling
(as detailed in Table B.1) interval hours
at nominal heat output
Batch fed appliances Wood logs or peat briquettes 2
All other test fuels 4
Hopper fed appliances Anthracite 10
at slow combustion
Batch fed appliances Wood logs or peat briquettes 10
All other test fuels 15
Hopper fed appliances Anthracite 48
Addition of the following new subclause:
6.401 Fan cut-out safety device

Where a safety cut-out device is provided for a fan supplying forced draught combustion air as specified

in 4.4.402 then when tested in accordance with A.4.401, the safety device shall switch off the fan within

15 min following obstruction of the flue.
7 Appliance instructions
prEN 16510-1:2021, Clause 7, shall be applicable.
8 Sustainable use of natural resources
prEN 16510-1:2021, Clause 8, shall be applicable.
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oSIST prEN 16510-2-4:2021
prEN 16510-2-4:2021 (E)
9 Assessment and verification of constancy of performance - AVCP
prEN 16510-1:2021, Clause 9, shall be applicable.
10 Marking and technical datasheet
prEN 16510-1:2021, Clause 10, shall be applicable.
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oSIST prEN 16510-2-4:2021
prEN 16510-2-4:2021 (E)
Annex A
(normative)
Test methods
A.1 Test environment
prEN 16510-1:2021, A.1, shall be applicable.
A.2 Test assembly
prEN 16510-1:2021, A.2, shall be applicable.
A.3 Measurement equipment
prEN 16510-1:2021, A.3, shall be applicable.
A.4 Test procedures
prEN 16510-1:2021, A.4, shall be applicable with the following modification.
A.4.7 Performance test at nominal heat output
prEN 16510-1:2021, A.4.7, shall be applicable with the following modification.
A.4.7.1 General

prEN 16510-1:2021, A.4.7.1, shall be applicable with the following modifications.

Deletion of the 2 paragraph
Replacement of the 4 paragraph:
The test may start from cold or ma
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