EN 16510-2-1:2022
(Main)Residential solid fuel burning appliances - Part 2-1: Roomheaters
Residential solid fuel burning appliances - Part 2-1: Roomheaters
This document is applicable to roomheaters for solid fuel (freestanding or inset solid fuel burning local space heating products that operate with fire doors either as closed only or as closed or open; insets without functional modification).
The intended use of the appliances is space heating in residential buildings. They can be fitted with a boiler (integral part of the appliance containing water to be heated up) for the supply of hot water for central heating systems.
These 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.
This document is not applicable to appliances with fan assisted combustion air or appliances that are mechanically fed.
This document specifies procedures for assessment and verification of constancy of performance (AVCP) of characteristics of solid fuel burning roomheaters.
Häusliche Feuerstätten für feste Brennstoffe - Teil 2-1: Raumheizer
Dieses Dokument ist anzuwenden für Raumheizer für feste Brennstoffe (freistehende oder eingebaute Raumheizgeräte für feste Brennstoffe, die mit Feuerraumtüren ausgestattet sind und entweder nur geschlossen bzw. geschlossen oder offen betrieben werden können; Einsätze ohne Funktionsänderung).
Der Verwendungszweck der Geräte ist Raumheizung in Wohngebäuden. Sie können mit wasserführenden Bauteilen (als feste Bestandteile des Gerätes mit zu erhitzendem Wasser) zur Warmwasserbereitung der Zentralheizung ausgestattet sein.
Die Geräte können wie angegeben einen oder mehrere der folgenden festen Brennstoffe verfeuern:
— Scheitholz;
— Holzbriketts;
— Holzpellets;
— Braunkohlenbriketts;
— feste mineralische Brennstoffe;
— Torfbriketts.
Dieses Dokument ist nicht anzuwenden für Geräte mit Verbrennungsluftgebläse oder mechanisch beschickte Feuerstätten.
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 2-1 : Poêles
Le présent document s’applique aux poêles à combustible solide (produits de chauffage décentralisés à combustible solide indépendants ou encastrés, utilisés avec les portes foyères soit uniquement fermées, soit fermées ou ouvertes ; inserts sans modification fonctionnelle).
L’usage prévu des appareils est le chauffage des locaux dans les bâtiments résidentiels. Ils peuvent être équipés d’un bouilleur (faisant partie intégrante de l’appareil et contenant de l’eau à chauffer) pour fournir de l’eau chaude aux systèmes de chauffage central.
Ces 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.
Le présent document ne s’applique pas aux appareils équipés d’un ventilateur pour l’alimentation en air de combustion ou aux appareils à alimentation mécanique.
Le présent document spécifie des modes opératoires pour l’évaluation et la vérification de la constance des performances (EVCP) des caractéristiques des poêles à combustible solide.
Grelne naprave na trdna goriva za stanovanjske stavbe - 2-1. del: Grelniki prostorov
Ta del 2-1 standarda EN 16510 se uporablja za prostostoječe ali vgrajene grelnike prostorov na trdna goriva brez funkcionalnih sprememb, ki delujejo bodisi samo z zaprtimi protipožarnimi vrati bodisi z zaprtimi ali odprtimi vrati.
Naprave, zajete v tem delu 2-1 standarda EN 16510, zagotavljajo toploto v prostor, kjer so nameščene. Če so opremljene s kotlom, zagotavljajo tudi sanitarno vodo in/ali centralno ogrevanje. V skladu z navodili proizvajalca je v teh napravah mogoče kuriti eno ali več vrst naslednjih trdnih goriv: .
lesena polena
stisnjen neobdelan les
lesne pelete
trdna mineralna goriva
šotne brikete.
Ta del 2-1 standarda EN 16510 se ne uporablja za naprave z ventilatorjem za zgorevalni zrak ali naprave z mehanskim dodajanjem.
Ta del 2-1 standarda EN 16510 je sestavni del standarda EN 16510-1 in ga je treba uporabljati v povezavi z njim.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-marec-2023
Nadomešča:
SIST EN 13240:2003
SIST EN 13240:2003/A2:2005
SIST EN 13240:2003/A2:2005/AC:2006
SIST EN 13240:2003/A2:2005/AC:2008
SIST EN 13240:2003/AC:2004
SIST EN 13240:2003/AC:2006
Grelne naprave na trdna goriva za stanovanjske stavbe - 2-1. del: Grelniki
prostorov
Residential solid fuel burning appliances - Part 2-1: Roomheaters
Häusliche Feuerstätten für feste Brennstoffe - Teil 2-1: Raumheizer
Equipement de chauffage domestique - Partie 2-1 : Poêles
Ta slovenski standard je istoveten z: EN 16510-2-1:2022
ICS:
97.100.30 Grelniki na trdo gorivo Solid fuel heaters
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 16510-2-1
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2022
EUROPÄISCHE NORM
ICS 97.100.30 Supersedes EN 13240:2001
English Version
Residential solid fuel burning appliances - Part 2-1:
Roomheaters
Appareils de chauffage domestiques à combustible Häusliche Feuerstätten für feste Brennstoffe - Teil 2-1:
solide - Partie 2-1 : Poêles Raumheizer
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 16510-2-1:2022 E
worldwide for CEN national Members.
Contents Page
European foreword . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Characteristics . 7
4.1 Load bearing capacity . 7
4.2 Protection of combustible materials . 7
4.3 Carbon monoxide emission (CO) . 8
4.4 Nitrogen oxides (NO ) emissions . 8
x
4.5 Emission of organic gaseous compounds (OGC) . 9
4.6 Particulate matter (PM) emissions . 9
4.7 Safety and accessibility in use . 10
4.7.1 General . 10
4.7.2 Flue gas outlet temperature at nominal heat output . 10
4.7.3 Flue gas outlet temperature at part load heat output. 10
4.7.4 Minimum flue draught at nominal heat output . 10
4.7.5 Minimum flue draught at part load heat output . 10
4.7.6 Flue gas mass flow at nominal heat output . 10
4.7.7 Flue gas mass flow at part load heat output . 10
4.7.8 Fire safety of installation to the chimney . 11
4.8 Energy economy and heat retention . 11
4.8.1 Space heat output at nominal heat output . 11
4.8.2 Water heat output, if existing at nominal heat output. 11
4.8.3 Efficiency at nominal heat output . 11
4.8.4 Space heat output at part load heat output . 11
4.8.5 Water heat output, if existing at part load heat output . 12
4.8.6 Efficiency at part load heat output . 12
4.8.7 Seasonal space heating efficiency at appliance’s nominal heat output . 12
4.8.8 Energy efficiency . 12
4.8.9 Electric power consumption at nominal heat output, if existing . 13
4.8.10 Electric power consumption at part load heat output, if existing . 13
4.8.11 Standby mode power consumption, if existing . 13
4.9 Environmental sustainability . 13
5 Descriptive features . 15
5.1 Data for potential use with room ventilation systems: type of appliance (in relation
to its tightness to the room) . 15
5.2 Data for the building's statics: appliance's mass . 15
5.3 Materials and construction elements . 15
5.3.1 General . 15
5.3.2 General stresses . 15
5.3.3 Integral boiler or heat exchanger . 15
5.4 Risk of burning fuel falling out . 15
5.5 Temperature rise in the fuel storage . 16
5.6 Temperature rise of the operating components . 16
5.7 Spillage of flue gases into the room . 16
5.7.1 Possible spillage of CO, if relevant for the fuel type. 16
5.7.2 Open operation . 16
5.8 Cleanability . 16
5.8.1 Heating surfaces . 16
5.8.2 Flueways . 16
5.8.3 Ashpan . 16
5.8.4 Bottomgrate . 16
5.8.5 Damper . 16
5.8.6 Fan-cut-out-device . 16
5.9 Strength and leak tightness of boiler shells . 16
6 Assessment and verification of constancy of performance - AVCP . 17
6.1 General . 17
6.2 Assessment of performance . 17
6.2.1 General . 17
6.2.2 Test samples, testing and compliance criteria . 18
6.3 Verification of constancy of performance . 19
6.3.1 Factory production control (FPC) . 19
Annex A (normative) Test methods . 24
A.1 Test environment . 24
A.2 Test assembly . 24
A.3 Measurement equipment. 24
A.4 Test procedures . 24
A.5 Test results . 25
A.6 Calculation methods . 25
A.7 Test report . 25
Annex ZA (informative) Relationship of this European Standard with Regulation (EU) No.
305/2011 . 26
ZA.1 Scope and relevant characteristics . 26
ZA.2 System of Assessment and Verification of Constancy of Performance (AVCP) . 29
ZA.3 Assignment of AVCP tasks . 29
European foreword
This document (EN 16510-2-1:2022) 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 13240:2001 as amended and corrected. In relation to EN 13240:2001 as
amended and corrected the following changes have been made:
— measurement methods for NO , hydrocarbon and particulate matter emissions for solid fuel burning
x
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.
Subclauses and Figures which are additional to those in EN 16510-1:2022 are numbered starting with
101. Annexes which are additional to those in EN 16510-1:2022 are numbered starting with AA.
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.
1 Scope
This document is applicable to roomheaters for solid fuel (freestanding or inset solid fuel burning local
space heating products that operate with fire doors either as closed only or as closed or open; insets
without functional modification).
The intended use of the appliances is space heating in residential buildings. They can be fitted with a
boiler (integral part of the appliance containing water to be heated up) for the supply of hot water for
central heating systems.
These 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.
This document is not applicable to appliances with fan assisted combustion air or appliances that are
mechanically fed.
This document specifies procedures for assessment and verification of constancy of performance (AVCP)
of characteristics of solid fuel burning roomheaters.
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/
4 Characteristics
4.1 Load bearing capacity
The performance of the appliance in relation to the ability to carry a chimney shall be determined in
accordance with EN 16510-1:2022, 4.6.
If for an appliance with an upper outlet the ability to carry a chimney is specified the value of the
maximum load is to be given in [kg] as an integer according to EN 16510-1:2022, Table 22, no. 57 (m ).
chim
4.2 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 insulation material
thickness of protective if any
insulation material
[mm]
Minimum distance to -
combustible materials - bottom
(d )
B
Minimum distance to -
combustible materials – floor in
front (d )
F
Minimum distance to -
combustible materials – ceiling
(d )
C
Minimum distance to -
combustible materials – rear (d )
R
Minimum distance to -
combustible materials – side (d )
S
Minimum distance to -
combustible materials – side
radiation area (d )
L
Minimum distance to adjacent -
combustible materials (e.g.
furniture) (d )
P
Protective insulation material (s)
4.3 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
4.4 Nitrogen oxides (NO ) emissions
x
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
x
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
x
not exceed the threshold levels as given in Table 3.
Table 3 — Threshold levels for NO emissions (expressed as NO )
x 2
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
4.5 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
4.6 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 emissions
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
4.7 Safety and accessibility in use
4.7.1 General
The data for the installation to a chimney are to be evaluated at nominal heat output. Specific data are to
be evaluated at safety test heat output. Additional data are to be evaluated at part load heat output, if part
load is specified.
4.7.2 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
4.7.3 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
4.7.4 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 EN 16510-1:2022, 6.5.
The value of the minimum 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
4.7.5 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 be determined in accordance with EN 16510-1:2022, 6.5.
The minimum value of the flue draught if specified at part load heat output (if part load is specified) 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. 30 (p ).
part
4.7.6 Flue gas mass flow at nominal heat output
The performance of the appliance in relation to the flue gas mass flow at nominal heat output shall be
determined in accordance with EN 16510-1:2022, 6.12.
The flue gas mass flow value if specified at nominal heat output for the installation of the appliance to a
chimney is to be given in [g/s] with 1 decimal according to EN 16510-1:2022, Table 22, no. 50 (ϕ ).
f,g nom
4.7.7 Flue gas mass flow at part load heat output
The performance of the appliance in relation to the flue gas mass flow at part load heat output (if part
load is specified) shall be determined in accordance with EN 16510-1:2022, 6.12.
The flue gas mass flow value if specified at part load heat output (if part load is specified) for the
installation of the appliance to a chimney is to be given in [g/s] with 1 decimal according to
EN 16510-1:2022, Table 22, no. 51 (ϕ ).
f,g part
4.7.8 Fire safety of installation to the chimney
The performance of the appliance in relation to the flue gas temperature (mean value) at safety test shall
be determined in accordance with EN 16510-1:2022, A.4.10.4.
The data for installation of the appliance to a chimney with regards to the fire safety if specified is to be
given as the Tclass of the chimney required according to EN 16510-1:2022, 6.2.2 and EN 16510-1:2022,
Table 22, no. 49.
4.8 Energy economy and heat retention
4.8.1 Space heat output at nominal heat output
The performance of the appliance in relation to space heat output at nominal heat output shall be
determined in accordance with EN 16510-1:2022, 6.8.
The space heat output of the appliance if specified at nominal heat output is to be given in [kW] with 1
decimal according to EN 16510-1:2022, Table 22, no. 2 (P ).
SHnom
For the proper performance of the appliance the following shall be considered as well for those essential
characteristics and descriptive features assessed during the nominal heat output test (A.4.7).
Additional devices, such as flue gas outlet components, components built-in the flue ways, combustion
air supply control devices, charging doors and ash-pit doors, flue bypass devices, internal flue gas
diverters, front fire bars and/or draught regulators for the safety or function of the appliance may be
present.
Some of these devices are optional, but if present their influence on the performance of the appliance
shall be checked according to EN 16510-1:2022, 4.4.4, 4.4.6, 4.4.9, 4.4.11, 4.4.12, 4.4.13, 4.4.14, and 4.4.16.
4.8.2 Water heat output, if existing at nominal heat output
The performance of the appliance in relation to water heat output (where appropriate) at nominal heat
output shall be determined in accordance with EN 16510-1:2022, 6.9.
The water heat output of the appliance if specified at nominal heat output is to be given in [kW] with 1
decimal according to EN 16510-1:2022, Table 22, no. 3 (P ).
Wnom
4.8.3 Efficiency at nominal heat output
The performance of the appliance in relation to efficiency at nominal heat output shall be determined in
accordance with EN 16510-1:2022, 6.4.
The efficiency of the appliance if specified at nominal heat output is to be given in [%] as an integer
according to EN 16510-1:2022, Table 22, no. 13 (η ).
nom
4.8.4 Space heat output at part load heat output
The performance of the appliance in relation to space heat output at part load heat output (if part load is
specified) shall be determined in accordance with EN 16510-1:2022, 6.8.
The space heat output of the appliance if specified at part load heat output (if part load is specified is to
be given in [kW] with 1 decimal according to EN 16510-1:2022, Table 22, no. 5 (P ).
SHpart
For the proper performance of the appliance the following shall be considered as well for those essential
characteristics and descriptive features assessed during the part load heat output test (A.4.8).
Additional devices, such as flue gas outlet components, components built-in the flue ways, combustion
air supply control devices, charging doors and ash-pit doors, flue bypass devices, internal flue gas
diverters, front fire bars and/or draught regulators for the safety or function of the appliance may be
present.
Some of these devices are optional, but if present their influence on the performance of the appliance
shall be considered according to EN 16510-1:2022, 4.4.4, 4.4.6, 4.4.9, 4.4.11, 4.4.12, 4.4.13, 4.4.14, and
4.4.16.
4.8.5 Water heat output, if existing at part load heat output
The performance of the appliance in relation to water heat output (where appropriate) at part load heat
output (if part load is specified) shall be determined in accordance with EN 16510-1:2022, 6.9.
The water heat output of the appliance if specified at part load heat output (if part load is specified) is to
be given in [kW] with 1 decimal according to EN 16510-1:2022, Table 22, no. 6 (P ).
Wpart
4.8.6 Efficiency at part load heat output
The performance of the appliance in relation to efficiency at part load heat output (if part load is specified)
shall be determined in accordance with EN 16510-1:2022, 6.4.
The efficiency of the appliance if specified at
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