FprEN 1-2

SLOVENSKI STANDARD
01-september-2023
Grelne naprave na tekoča goriva za stanovanjske stavbe - 2. del: Peči za ogrevanje
na tekoča goriva z uparjalnimi gorilniki in priključkom na dimnik
Residential liquid fuel burning appliances - Part 2: Flued oil stoves with vaporizing
burners
Häusliche Feuerstätten für flüssige Brennstoffe - Teil 2: Ölöfen mit
Verdampfungsbrenner und Schornsteinanschluss
Equipement de chauffage domestique à combustible liquide - Partie 2 : Poêles à huile
avec brûleurs à vaporisation et conduit de cheminée
Ta slovenski standard je istoveten z: prEN 1-2
ICS:
97.100.40 Grelniki na tekoče gorivo Liquid fuel heaters
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
EUROPEAN STANDARD
prEN 1-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
June 2023
ICS 97.100.40 Will supersede EN 1:1998
English Version
Residential liquid fuel burning appliances - Part 2: Flued
oil stoves with vaporizing burners
Equipement de chauffage domestique à combustible Häusliche Feuerstätten für flüssige Brennstoffe - Teil 2:
liquide - Partie 2 : Poêles à huile avec brûleurs à Ölöfen mit Verdampfungsbrenner und
vaporisation et conduit de cheminée Schornsteinanschluss
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 46.
If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations
which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC
Management Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

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

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 1-2:2023 E
worldwide for CEN national Members.

prEN 1-2:2023 (E)
Contents Page
European foreword . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Characteristics . 5
4.1 Protection of combustible materials . 5
4.2 Carbon monoxide emission (CO) . 6
4.3 Nitrogen oxides (NO ) emissions . 6
x
4.4 Emission of organic gaseous compounds (OGC) . 7
4.5 Smoke number . 7
4.6 Safety and accessibility in use . 7
4.6.1 General. 7
4.6.2 Flue gas outlet temperature at nominal heat output . 7
4.6.3 Flue gas outlet temperature at part load heat output . 7
4.6.4 Minimum flue draught at nominal heat output . 7
4.6.5 Minimum flue draught at part load heat output . 7
4.6.6 Flue gas mass flow at nominal heat output . 7
4.6.7 Flue gas mass flow at part load heat output . 8
4.6.8 Fire safety of installation to the chimney . 8
4.7 Energy economy and heat retention . 8
4.7.1 Space heat output at nominal heat output . 8
4.7.2 Water heat output, if existing at nominal heat output . 8
4.7.3 Efficiency at nominal heat output . 8
4.7.4 Space heat output at part load heat output . 8
4.7.5 Water heat output, if existing at part load heat output . 9
4.7.6 Efficiency at part load heat output . 9
4.7.7 Seasonal space heating efficiency at appliance’s nominal heat output . 9
4.7.8 Energy efficiency . 9
4.7.9 Electric power consumption at nominal heat output, if existing . 10
4.7.10 Electric power consumption at part load heat output, if existing . 10
4.7.11 Standby mode power consumption, if existing . 10
4.8 Environmental sustainability . 10
5 Descriptive features . 12
5.1 Data for potential use with room ventilation systems: type of appliance (in relation to its
tightness to the room) . 12
5.2 Data for the building's statics: appliance's mass . 12
5.3 Materials and construction elements . 12
5.3.1 General. 12
5.3.2 General stresses . 12
5.3.3 Integral boiler or heat exchanger . 12
5.4 Risk of burning fuel falling out. 13
5.5 Temperature rise in the fuel storage . 13
5.6 Temperature rise of the operating components . 13
5.7 Spillage of flue gases into the room . 13
prEN 1-2:2023 (E)
5.7.1 Possible spillage of CO, if relevant for the fuel type . 13
5.7.2 Open operation . 13
5.8 Cleanability . 13
5.8.1 Heating surfaces . 13
5.8.2 Flueways . 13
5.8.3 Ashpan . 13
5.8.4 Bottomgrate . 13
5.8.5 Damper . 13
5.8.6 Fan-cut-out-device . 13
5.9 Strength and leak tightness of boiler shells . 14
6 Assessment and verification of constancy of performance - AVCP . 14
6.1 General . 14
6.2 Assessment of performance . 14
6.2.1 General . 14
6.2.2 Test samples, testing and compliance criteria . 15
6.3 Verification of constancy of performance. 16
6.3.1 Factory production control (FPC) . 16
Annex ZA (informative) Relationship of this European Standard with Regulation (EU) No.
305/2011 . 19

prEN 1-2:2023 (E)
European foreword
This document (prEN 1-2:2023) has been prepared by Technical Committee CEN/TC 46 “Fireplaces for
liquid fuels”, the secretariat of which is held by DIN.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 1:1998 and EN 1:1998/A1:2007.
In relation to EN 1:1998 and EN 1:1998/A1:2007, the following technical changes have been made:
— completely revised according to the 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 1, Residential liquid fuel burning appliances, is as follows:
— Part 1: General requirements and test methods;
— Part 2: Flued oil stoves with vaporizing burners;
— Part 3: Flued oil stoves with vaporizing burners and boiler;
— Part 4: Flued ethanol stoves.

prEN 1-2:2023 (E)
1 Scope
This document is applicable to oil stoves. These appliances have one or more vaporizing burners and a
nominal heating capacity of not more than 15 kW and are equipped either with a draught regulator or a
combustion air limiter.
The intended use of the appliances is space heating in residential buildings.
This document is also applicable to appliances with fan assisted vaporizing burners.
According to the type of fuels used in the country of destination, the appliances are supplied for use with
either:
— fuel oil with a maximum kinematic viscosity of 6,0 mm /s at 20 °C;
— or kerosene with a flash point of not less than 40 °C.
This document is not applicable for:
— built-in appliances;
—
...