This European Standard specifies the requirements and test methods for the safety and efficiency of gas fired air heaters with or without a fan to assist the transportation of combustion air and/or flue gases, hereafter referred to as "appliances".
This European Standard applies to Type A2, A3, B11, B11AS, B11BS, B12, B12AS, B12BS, B13, B13AS, B13BS, B14, B14AS, B14BS, B22, B23, B41, B41AS, B41BS, B42, B42AS, B42BS, B43, B43AS, B43BS, B44, B44AS, B44BS, B52, B53, C11, C12, C13, C21, C31, C32, C33, C41, C62 and C63 appliances with an input not exceeding 300 kW (net cv basis), intended for use in single unit residential dwellings and in other than single unit residential units. Provision of the heated air may be by means of ducting.
This European Standard does not apply to:
a)   dual purpose air conditioning appliances (heating and cooling);
b)   appliances where the air is heated by an intermediate fluid;
c)   portable or transportable forced convection appliances;
d)   domestic appliances for outdoor installation;
e)   appliances fitted with manual or automatic means of adjusting  the combustion products evacuation  by means of flue dampers;
f)   appliances having multiple heating units with a single draught diverter;
g)   appliances fitted with more than one flue outlet;
h)   appliances fitted with gas boosters;
i)   domestic appliances of type C22, C23, C42, C43, C52 and C53;
j)   C21 and C41 appliances for 3rd family gases;
NOTE For C41 appliances, see all requirements and test methods that are valid for C21 appliances, unless otherwise stated.
This European Standard is applicable to appliances which are intended to be type tested. It also includes requirements concerning the evaluation of conformity, including factory production control, but these requirements only apply to POCEDs and their associated terminals.

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This document specifies the requirements and test methods for the construction, safety, classification, marking and efficiency of non-domestic gas-fired overhead radiant strips heaters and multi-burner continuous radiant tube heater systems (referred to in the body of the text as the “system”) with each burner unit under the control of an automatic burner control system.
For radiant strip heaters incorporating a single burner, this standard is applicable to Type B22, B23, B52, B53, C12, C13, C32, C33 C52 and C53 appliances intended for use in other than domestic dwellings, in which the supply of combustion air and/or the evacuation of the products of combustion is achieved by mechanical means.
For multi-burner continuous radiant tube heater systems this standard is applicable to type B22, B52, and C52 appliances intended for use in other than domestic dwellings, in which the supply of combustion air and/or the evacuation of the products of combustion is achieved by mechanical means.
This standard also includes appliances incorporating a secondary heat exchanger in the flue system.
This standard is not applicable to:
a)   appliances designed for use in domestic dwelling;
b)   outdoor appliances;
c)   radiant strip heaters where the heat input is in excess of  300 KW (based on the net calorific value of the appropriate reference test gas);
d)   continuous radiant tube heater systems where the heat input of any individual burner unit is in excess of 70 kW (based on the net calorific value of the appropriate reference test gas);
e)   appliances having combustion products evacuation ducts that are non-metallic in the flue system – except ducts downstream of a possible additional condensing exhaust gas heat exchanger.
In addition, for heater systems incorporating multiple tube heaters this standard is not applicable to:
f)        appliances that are designed for continuous condensation within the flue system under normal      operating conditions – except downstream a possible additional exhaust gas heat exchanger.
This standard is applicable to appliances which are intended to be type tested.

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  • Standard
    162 pages
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This European Standard specifies the requirements and test methods for the construction, safety, rational use of energy, classification and marking of non-domestic gas-fired overhead luminous radiant heaters for environmental comfort, referred to in the body of the text as "appliances".
This European Standard is applicable to Type A1 and Type A3 appliances only (see 4.2.2) intended for use in other than residential dwellings:
a)   low gas pressure appliances operating at pressures up to and including 50 mbar;
b)   medium gas pressure appliances operating at pressures above 50 mbar and up to 2 bar.
This European Standard is not applicable to:
-   appliances designed for use in domestic dwellings;
-   outdoor appliances;
-   appliances of heat input in excess of 120 kW (based on the net calorific value of the appropriate reference gas);
This standard is applicable to appliances which are intended to be type tested.

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This European Standard specifies the requirements and test methods for the construction, safety, classification, marking and efficiency of non-domestic gas-fired overhead radiant tube heaters incorporating a single burner and multiple burner systems (referred to in the body of the text as the "system") with each burner unit under the control of an automatic burner control system.
For radiant tube heaters incorporating a single burner, this standard is applicable to Type A2, A3, B12, B13, B22, B23, B42, B43, B52, B53, C12, C13, C32, C33, C52 and C53 appliances intended for use in other than domestic dwellings, in which the supply of combustion air and/or the evacuation of the products of combustion is achieved by mechanical means located upstream of the draught diverter, if provided.
For radiant tube heater systems incorporating multiple tube heater segments, this standard is applicable to Type B52, B52x, B53 and B53x systems intended for use in other than domestic dwellings, in which the supply of combustion air and/or the evacuation of the products of combustion is achieved by mechanical means.
This standard also includes appliances incorporating a secondary heat exchanger in the flue system.
This standard is not applicable to:
a)   appliances designed for use in domestic dwelling;
b)   outdoor appliances;
c)   appliances where the heat input of any individual burner unit is in excess of 120 kW (based on the net calorific value of the appropriate reference test gas);
d)   appliances having combustion products evacuation ducts that are non-metallic in the flue system - except ducts downstream of a possible additional condensing exhaust gas heat exchanger.
In addition, for heater systems incorporating multiple tube heaters this standard is not applicable to:
e)   appliances and systems that are designed for continuous condensation within the flue system under normal operating conditions - except downstream a possible additional exhaust gas heat exchanger.
This standard is applicable to systems which are intended to be type tested.

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This European Standard specifies the requirements and test methods for the construction, safety, fitness
for purpose, rational use of energy and the marking of a micro combined heat and power appliance;
(hereafter referred to as “mCHP appliance”).
This European Standard applies to mCHP appliances of types B22, B23, B32, B33, B52, B53, C1, C3, C42, C43
C52, C53, C62, C63, C82, C83 and C9 based on the classifications of CEN/TR 1749:
– that use one or more supplied gases of the three gas families at the pressures stated in EN 437,
– where the temperature of the heat transfer fluid of the heating system (heating water circuit) does
not exceed 105 ºC during normal operation,
– where the maximum operating pressure in the
- heating water circuit does not exceed 6 bar,
- domestic hot water circuit (if installed) does not exceed 10 bar,
– which are either intended to be installed indoors or outdoors in a partially protected place,
– which are intended to produce hot water either by the instantaneous or storage principle,
– which have a maximum heat input (based on net calorific value) not exceeding 70 kW,
– which are designed for sealed or open water systems.
NOTE 1 For applications where the maximum allowable water temperature exceeds 110 ºC or where volume multiplied by
maximum allowable pressure exceeds 50 bar litres, further requirements may be necessary to comply with the essential
requirements of Directive 97/23/EC (Pressure Equipment Directive (PED)).
NOTE 2 For mCHP appliances with constructions that might not be fully covered by this European Standard or by another specific
standard, the risk associated with the alternative construction will be assessed.
NOTE 3 prEN 13203-4 will specify the assessment of energy consumption for domestic hot water production of gas combined
heat and power appliances (mCHP).
This European Standard does not contain the requirements necessary for appliance capable of producing
electrical energy without using the thermal energy.
This European Standard does not cover all the requirements for mCHP appliances that are intended to be
connected to gas grids where the quality of the distributed gas is likely to vary to a large extent over the
lifetime of the appliance (see Annex DD).

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2019-01-10 AJC: Document uploaded to HAS platform for FV stage following failed original upload. New HAS deadline: 2019-02-14. Following reception of results, document will progress.
2017-07-17 CP: negative assessment recived - UAP cancelled

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This document specifies the requirements and test methods for the safety and efficiency of gas fired air heaters with or without a fan to assist the transportation of combustion air and/or flue gases, hereafter referred to as "appliances".
This standard also applies to warm air heaters having forced draught burners.
This European Standard applies to Type A2, A3 appliances, with an input not exceeding 300 kW (net CV basis), intended for non-domestic use.
This European Standard also applies to Type B11, B11AS, B11BS, B12, B12AS, B12BS, B13, B13AS, B13BS, B14, B14AS, B14BS, B22, B23, B41, B41AS, B41BS, B42, B42AS, B42BS, B43, B43AS, B43BS, B44, B44AS, B44BS, B52, B53, C11, C12, C13, C21, C31, C32, C33, C41, C62 and C63 appliances with an input not exceeding 300 kW (net CV basis), intended for domestic and non-domestic use.
Provision of the heated air may be by means of ducting.
This European Standard does not apply to:
a)   dual purpose air conditioning appliances (heating and cooling);
b)   appliances where the air is heated by an intermediate fluid;
c)   portable or transportable forced convection appliances;
d)   appliances fitted with manual or automatic means of adjusting the combustion products evacuation by means of flue dampers;
e)   appliances having multiple heating units with a single draught diverter;
f)   appliances fitted with more than one flue outlet;
g)   appliances fitted with gas boosters;
h)   C21 and C41 appliances for 3rd family gases.
NOTE   For C41 appliances, see all requirements and test methods that are valid for C21 appliances, unless otherwise stated.
This European Standard is not intended to cover appliances projected for connection to gas grids where the quality of the distributed gas is likely to vary to a large extent over the lifetime of the appliance.
This European Standard is applicable to appliances which are intended to be type tested.

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This European Standard specifies the requirements and test methods for the construction, safety, rational use of energy, classification and marking of non-domestic gas-fired overhead luminous radiant heaters for environmental comfort, referred to in the body of the text as "appliances".
This European Standard is applicable to Type A1 and Type A3 appliances only (see 4.2.2) intended for use in other than residential dwellings:
a)   low gas pressure appliances operating at pressures up to and including 50 mbar;
b)   medium gas pressure appliances operating at pressures above 50 mbar and up to 2 bar.
This European Standard is not applicable to:
-   appliances designed for use in domestic dwellings;
-   outdoor appliances;
-   appliances of heat input in excess of 120 kW (based on the net calorific value of the appropriate reference gas);
This standard is applicable to appliances which are intended to be type tested.

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This document specifies the requirements and test methods for the construction, safety, classification, marking and efficiency of non-domestic gas-fired overhead radiant strips heaters and multi-burner continuous radiant tube heater systems (referred to in the body of the text as the “system”) with each burner unit under the control of an automatic burner control system.
For radiant strip heaters incorporating a single burner, this standard is applicable to Type B22, B23, B52, B53, C12, C13, C32, C33 C52 and C53 appliances intended for use in other than domestic dwellings, in which the supply of combustion air and/or the evacuation of the products of combustion is achieved by mechanical means.
For multi-burner continuous radiant tube heater systems this standard is applicable to type B22, B52, and C52 appliances intended for use in other than domestic dwellings, in which the supply of combustion air and/or the evacuation of the products of combustion is achieved by mechanical means.
This standard also includes appliances incorporating a secondary heat exchanger in the flue system.
This standard is not applicable to:
a)   appliances designed for use in domestic dwelling;
b)   outdoor appliances;
c)   radiant strip heaters where the heat input is in excess of  300 KW (based on the net calorific value of the appropriate reference test gas);
d)   continuous radiant tube heater systems where the heat input of any individual burner unit is in excess of 70 kW (based on the net calorific value of the appropriate reference test gas);
e)   appliances having combustion products evacuation ducts that are non-metallic in the flue system – except ducts downstream of a possible additional condensing exhaust gas heat exchanger.
In addition, for heater systems incorporating multiple tube heaters this standard is not applicable to:
f)        appliances that are designed for continuous condensation within the flue system under normal      operating conditions – except downstream a possible additional exhaust gas heat exchanger.
This standard is applicable to appliances which are intended to be type tested.

  • Standard
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  • Standard
    162 pages
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This European Standard specifies the requirements and test methods for the construction, safety, classification, marking and efficiency of non-domestic gas-fired overhead radiant tube heaters incorporating a single burner and multiple burner systems (referred to in the body of the text as the “system”) with each burner unit under the control of an automatic burner control system.
For radiant tube heaters incorporating a single burner, this standard is applicable to Type A2, A3, B12, B13, B22, B23, B42, B43, B52, B53, C12, C13, C32, C33, C52 and C53 appliances intended for use in other than domestic dwellings, in which the supply of combustion air and/or the evacuation of the products of combustion is achieved by mechanical means located upstream of the draught diverter, if provided.
For radiant tube heater systems incorporating multiple tube heater segments, this standard is applicable to Type B52, B52x, B53 and B53x systems intended for use in other than domestic dwellings, in which the supply of combustion air and/or the evacuation of the products of combustion is achieved by mechanical means.
This standard also includes appliances incorporating a secondary heat exchanger in the flue system.
This standard is not applicable to:
a)   appliances designed for use in domestic dwelling;
b)   outdoor appliances;
c)   appliances where the heat input of any individual burner unit is in excess of 120 kW (based on the net calorific value of the appropriate reference test gas);
d)   appliances having combustion products evacuation ducts that are non-metallic in the flue system - except ducts downstream of a possible additional condensing exhaust gas heat exchanger.
In addition, for heater systems incorporating multiple tube heaters this standard is not applicable to:
e)   appliances and systems that are designed for continuous condensation within the flue system under normal operating conditions - except downstream a possible additional exhaust gas heat exchanger.
This standard is applicable to systems which are intended to be type tested.

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IEC 60335-2-102:2017 is available as IEC 60335-2-102:2017 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 60335-2-102:2017 deals with the safety of gas, oil and solid-fuel burning appliances having electrical connections, for household and similar purposes, their rated voltage being not more than 250 V for single-phase appliances and 480 V for other appliances. This standard covers the electrical safety and some other safety aspects of these appliances. All safety aspects are covered when the appliance also complies with the relevant standard for the fuel-burning appliance. If the appliance incorporates electric heating sources, safety aspects concerning these electric sources are covered when the appliance also complies with the relevant part 2 of IEC 60335. Examples of appliances within the scope of this standard are
– central heating boilers;
– commercial catering equipment;
– cooking appliances;
– laundry and cleaning appliances;
– room heaters;
– warm air heaters;
– water heaters.
Appliances not intended for normal household use but which nevertheless may be a source of danger to the public, such as appliances intended to be used by laymen in shops, in light industry and on farms, are within the scope of this standard. This standard deals with the reasonably foreseeable hazards presented by appliances that are encountered by all persons. However, in general, it does not take into account
– persons (including children) whose
• physical, sensory or mental capabilities; or
• lack of experience and knowledge
prevents them from using the appliance safely without supervision or instruction;
– children playing with the appliance.
Attention is drawn to the fact that
– for appliances intended to be used in vehicles or on board ships or aircraft, additional requirements may be necessary;
This standard does not apply to
– appliances intended exclusively for industrial purposes;
– appliances intended to be used in locations where special conditions prevail, such as the presence of a corrosive or explosive atmosphere (dust, vapour or gas). This second edition cancels and replaces the first edition published in 2004 including its Amendment 1 (2008) and its Amendment 2 (2012). This edition constitutes constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a spillage test is introduced for appliances that have a flat surface on which a cup may be placed (15.101); terms and definitions were renumbered and some notes have been converted to normative text or deleted (19.11.2, 22.103). This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. This part 2-102 is to be used in conjunction with the latest edition of IEC 60335-1 and its amendments. It was established on the basis of IEC 60335-1:2010, its Amendment 1:2013 and its Amendment 2:2016. The attention of National Committees is drawn to the fact that equipment manufacturers and testing organizations may need a transitional period following publication of a new, amended or revised IEC publication in which to make products in accordance with the new requirements and to equip themselves for conducting new or revised tests. It is the recommendation of the committee that the content of this publication be adopted for implementation nationally not earlier than 12 months or later than 36 months from the date of publication.
Key words: Gas, Oil, Solid Fuel Burning Appliances, Safety

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This European Standard specifies the safety, design, construction and performance requirements for Temperature Control Function (TCF) and Combustion Product Discharge Safety Device (TTB) intended for use with burners and appliances using gaseous or liquid fuels.
It also describes the test procedures for checking compliance with these requirements.
This European Standard is applicable to AC and DC supplied TCF and TTB (for TCF and TTB supplied by stand-alone battery system, battery systems for mobile applications or systems which are intended to be connected to DC supply networks, see Annex I).
This European Standard is applicable to electronically based TTB and TCF only.

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

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    44 pages
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This European standard specifies the design, safety and marking requirements and test methods for flueless patio heaters for outdoor or amply ventilated area use only.
These appliances are for use exclusively with gases of the third family as defined in Clause 4.
This European standard applies to appliances that have a nominal heat input not exceeding 17 kW (based on the gross calorific value), supplied with a maximum inlet pressure of 50 mbar:
-   fixed or,
-   movable, including those which comprise a housing for a transportable and rechargeable liquefied petroleum gas cylinder.
This European standard does not apply to appliances equipped with a fan for either combustion or circulation of the convection air.
This European standard does not cover LPG containers for liquefied petroleum gas, their associated regulator, tubing and flexible hoses used for gas supply of appliances covered by this European standard. Regulator, tubing and flexible hoses are covered by others standards (EN 16129, EN 16436-1 and prEN 16436-2, etc.) and national regulations.
This European standard does not lay down any specific requirements for the thermal efficiency of this type of appliances, but the requirements relating to combustion, which is a safety matter, ensure that the gas fuel will burn efficiently. However a method to measure the performance is described in informative Annex B.

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This European Standard specifies the safety, design, construction and performance requirements for Temperature Control Function (TCF) and Combustion Product Discharge Safety Device (TTB) intended for use with burners and appliances using gaseous or liquid fuels.
It also describes the test procedures for checking compliance with these requirements.
This European Standard is applicable to AC and DC supplied TCF and TTB (for TCF and TTB supplied by stand-alone battery system, battery systems for mobile applications or systems which are intended to be connected to DC supply networks, see Annex I).
This European Standard is applicable to electronically based TTB and TCF only.

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This European Standard specifies, the requirements and test methods concerning, in particular, the construction, safety, fitness for purpose, and rational use of energy, as well as the classification and marking of gas-fired central heating boilers that are fitted with atmospheric burners, fan assisted atmospheric burners or fully premixed burners, and are hereafter referred to as “boilers”.
Where the word boiler is used, it needs to be read as the boiler including its connecting ducts, ducts and terminals, if any.
This European Standard covers gas-fired central heating boilers from the types C1 up to C9 and the types B2, B3 and B5:
NOTE For further background information on appliance types see CEN/TR 1749:2014."
a) that have a nominal heat input (on the basis of net calorific value) not exceeding 1 000 kW;
b) that use one or more combustible gases of the three gas families at the pressures stated in EN 437;
c) where the temperature of the heat transfer fluid does not exceed 105 °C during normal operation;
d) where the maximum operating pressure in the water circuit does not exceed 6 bar;
e) which may or may not give rise to condensation under certain circumstances;
f) which are declared in the installation instructions to be either a “condensing” boiler or a "low temperature boiler" or a “standard boiler”; if no declaration is given the boiler is to be considered a “standard boiler”;
g) which are intended to be installed either indoors or outdoors in a partially protected place;
h) which may include the facility to produce hot water, either by the instantaneous or storage principle, the whole being marketed as a single unit;
i) which are designed for either sealed water systems or for open water systems;
j) which are either modular boilers, or non- modular boilers.
This European Standard also covers gas-fired condensing central heating boilers from the types C(10) that are equipped with a gas-air ratio control and that have a Δpmax, saf(min) of 25 Pa, and C(11) boilers that have condensing boiler modules that are equipped with a gas-air ratio control and that have a Δpmax, saf(min) of 25 Pa."
This European Standard provides requirements for boilers with known constructions. For boilers with any alternative constructions, which might not fully be covered by this standard, the risk associated with this alternative construction needs to be assessed.
An example of an assessment methodology, based upon risk assessment and which covers the essential requirements of the Gas Appliance Directive, is given in Clause 11.
This European Standard specifies, the requirements and test methods concerning, in particular, the construction, safety, fitness for purpose, and rational use of energy, as well as the classification and marking of gas-fired central heating boilers that are fitted with atmospheric burners, fan assisted atmospheric burners or fully premixed burners, and are hereafter referred to as “boilers”.
Where the word boiler is used, it needs to be read as the boiler including its connecting ducts, ducts and terminals, if any.

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Standard deals with the safety of gas, oil and solid-fuel burning appliances having electrical connections, for household and similar purposes, their rated voltage being not more than 250 V for single-phase appliances and 480 V for other appliances. The electrical safety and some other safety aspects of these appliances are also covered. All safety aspects are covered when the appliance also complies with the relevant standard for the fuel-burning appliance. If the appliance incorporates electric-heating sources, it also has to comply with the relevant part 2 of IEC 60335. Examples of appliances within the scope of this standard are: central heating boilers; commercial catering equipment; cooking appliances; laundry and cleaning appliances; room heaters; warm air heaters; water heaters.

  • Standard
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This European Standard deals with the safety of gas, oil and solid-fuel burning appliances having electrical connections, their rated voltage being not more than 250 V for single-phase appliances and 480 V for other appliances. This standard covers the electrical safety and some other safety aspects of these appliances. All safety aspects of these appliances, including those relevant to the noise emitted, are only covered when the appliance also complies with the relevant product standard for the fuel-burning appliance. If the appliance incorporates electric heating sources, it also has to comply with the relevant Part 2 of EN 60335. Additional requirements for appliances and machines with moving parts and intended for commercial use are given in Annex ZE. NOTE 101 Examples of appliances within the scope of this standard are – central heating boilers; – commercial catering equipment; – cooking appliances; – laundry and cleaning appliances; – room heaters; – warm air heaters; – water heaters. NOTE Z1 Examples of appliance for household environment are appliances for typical housekeeping functions used in the household environment and appliances for typical housekeeping functions used by non-expert users: – in shops, offices and other similar working environments, – in farm houses, – by clients in hotels, motels and other residential type environments, – in bed and breakfast type environments. NOTE Z2 Household environment includes the dwelling and its associated buildings, the garden, etc. As far as is practicable, this standard deals with the common hazards presented by appliances that are encountered by all persons in and around the home. However, in general, it does not take into account – persons (including children) whose • physical, sensory or mental capabilities; or • lack of experience and knowledge prevents them from using the appliance safely without supervision or instruction; – children playing with the appliance. This standard has to be applied in conjunction with the relevant standards for appliances and for control devices. Examples are listed in Annexes ZAA and ZBB. NOTE 102 Attention is drawn to the fact that – for appliances intended to be used in vehicles or on board ships or aircraft, additional requirements may be necessary; – in many countries additional requirements are specified by the national health authorities, the national authorities responsible for the protection of labour and similar authorities. NOTE 103 This standard does not apply to – appliances intended exclusively for industrial purposes; – appliances intended to be used in locations where special conditions prevail, such as the presence of a corrosive or explosive atmosphere (dust, vapour or gas).

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This European Standard specifies methods for the classification and assessment of function blocks designed to operate burners and appliances burning gaseous or liquid fuels, with particular regards to their fault behaviour and preventative measures.
This European Standard is applicable to control function blocks, not covered by a dedicated control standard (e.g. EN 88-1:2011, EN 88-2:2007, EN 125:2010, EN 126:2004, EN 161:2011, EN 257:2010, EN 298:2003, EN 1106:2010, EN 1643:2000, EN 1854:2010, EN 12067-2:2004, prEN 16304:2011 and prEN 16340:2011, EN ISO 23553-1:2009).

  • Standard
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This European Standard specifies methods for the classification and assessment of function blocks designed to operate burners and appliances burning gaseous or liquid fuels with particular regards to their fault behaviour and preventative measures.
This European Standard is applicable to control function blocks, not covered by a dedicated control standard (e.g. EN 88-1:2011, EN 88-2:2007, EN 125:2010, EN 126:2012, EN 126:2012/prA1:2014, EN 161:2011+A3:2013, EN 257:2010, EN 298:2012, EN 1106:2010, EN 1643:2014, EN 1854:2010, EN 12067-2:2004, EN 16304:2013 and EN 16340:2014, EN ISO 23553-1:2014).

  • Standard
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This European Standard specifies the common requirements and test methods concerning, in particular the construction, safety, fitness for purpose, and rational use of energy, as well as the classification, marking and energy labelling of gas-fired central heating boilers that are fitted with atmospheric burners, fan assisted atmospheric burners or fully premixed burners, and are hereafter referred to as boilers.
This European Standard is to be used in conjunction with the specific Parts 2 (Part 2-1 and following ones).
This European Standard applies to boilers of types B and C, according to CEN/TR 1749:2014
a)   that use one or more combustible gases of the three gas families at the pressures stated in EN 437 ;
b)   where the temperature of the heat transfer fluid does not exceed 105 °C during normal operation;
c)   where the maximum operating pressure in the water circuit does not exceed 6 bar;
d)   which can give rise to condensation under certain circumstances;
e)   !which are declared in the installation instructions to be either a "condensing" boiler or a "low temperature boiler" or a "standard boiler" or an "other boiler". If no declaration is given the boiler is to be considered both a "standard boiler" and an "other boiler";
NOTE   The Ecodesign Directive defines "other boilers", "low temperature boilers" and "condensing boilers". The Boiler Efficiency Directive defines "standard boilers", "low temperature boilers" and "condensing boilers". Depending on the legislation applied, a boiler can be both "a standard boiler" and an "other boiler"."
f)   which are intended to be installed inside a building or in a partially protected place;
g)   which are intended to produce hot water either by the instantaneous or storage principle, the whole being marketed as a single unit.
This European Standard applies to boilers designed for sealed water systems or for open water systems.
This general standard and the specific standards (see Part 2) provide requirements for boilers with known constructions. For boilers with any alternative constructions, which might not fully be covered by this standard or a specific standard, the risk associated with this alternative construction will need to be assessed.
An example of an assessment methodology, based upon risk assessment, is given in Clause 11.
This European Standard is not intended to cover appliances intended for connection to gas grids where the quality of the distributed gas is likely to vary to a large extent over the lifetime of the appliance.

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This European Standard defines the specifications and test methods concerning the construction, safety,
rational use of energy and fitness for purpose, and also the classification and marking of gas-fired
instantaneous water heaters for sanitary uses, hereafter called “water heaters”.
This European Standard applies to water heaters:
— of types AAS, B11, B11BS, B12, B12BS, B13, B13BS, B14, B22, B23, B32, B33, B44, B52, B53, C11, C12, C13, C21, C22,
C23, C32, C33, C42, C43, C52, C53, C62, C63, C72, C73, C82and C83 according to CEN/TR 1749;
— fitted with atmospheric burners;
— equipped with atmospheric burners assisted by a fan for the supply of combustion air or evacuation of
combustion products or fully premix burners;
— using one or more combustible gases corresponding to the three gas families and at the pressures stated
in accordance to EN 437;
— of nominal heat input not exceeding 70 kW;
— with an ignition burner or with direct ignition of the main burner.
In this European Standard, the heat inputs are expressed in relation to the net calorific value (Hi).
This European Standard does not contain all the requirements necessary for:
— boiling water appliances;
— appliances intended to be connected to a mechanical means of evacuating the combustion products;
— appliances which fulfil a dual role of space heating and heating water for sanitary use;
— appliances making use of the heat of condensation of the water contained in the combustion products;
— water heaters of types B21, B31, B41, B42, B43 and B51.
This European Standard only covers water heaters where the fan, if any, is an integral part of the appliance.
This European Standard:
— does not apply to appliances not intended to be connected to a flue when they are not fitted with an
atmosphere sensing device;
— takes account of the information given in Technical Report CR 1472:1994 with respect to marking.
The main symbols used in this European Standard are summarized in Annex F.

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This European Standard defines the specifications and test methods for the construction, safety, rational use
of energy and fitness for purpose, environment and classification and marking of gas-fired storage water
heaters for domestic hot water uses, hereafter called “appliance”.
This European Standard applies to appliances:
— of selected types B1, B2, B3, B5, C1, C2, C3, C4, C5, C6, C7, C8, C9 according to CEN/TR 1749;
— fitted with atmospheric burners;
— using one or more combustible gases corresponding to the three gas families and the pressures indicated
in EN 437;
— of nominal heat input not exceeding 150 kW (net calorific value);
— fitted with electrically operated mechanical flue dampers that are positioned downstream of the heat
exchanger.

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This European Standard specifies the requirements and test methods for the construction, safety, fitness for purpose, rational use of energy and the marking of a micro combined heat and power appliance; (hereafter referred to as “mCHP appliance”). This European Standard applies to mCHP appliances of types B22, B23, B32, B33, B52, B53, C1, C3, C42, C43 C52, C53, C62, C63, C82, C83 and C9 based on the classifications of CEN/TR 1749: – that use one or more supplied gases of the three gas families at the pressures stated in EN 437, – where the temperature of the heat transfer fluid of the heating system (heating water circuit) does not exceed 105 ºC during normal operation, – where the maximum operating pressure in the - heating water circuit does not exceed 6 bar, - domestic hot water circuit (if installed) does not exceed 10 bar, – which are either intended to be installed indoors or outdoors in a partially protected place, – which are intended to produce hot water either by the instantaneous or storage principle, – which have a maximum heat input (based on net calorific value) not exceeding 70 kW, – which are designed for sealed or open water systems. NOTE 1 For applications where the maximum allowable water temperature exceeds 110 ºC or where volume multiplied by maximum allowable pressure exceeds 50 bar litres, further requirements may be necessary to comply with the essential requirements of Directive 97/23/EC (Pressure Equipment Directive (PED)). NOTE 2 For mCHP appliances with constructions that might not be fully covered by this European Standard or by another specific standard, the risk associated with the alternative construction will be assessed. NOTE 3 This EN includes formulae and methods intended to produce values required by implementation measures of the ErP Directive 2009/125/EC and Labelling Directive 2010/30/EU. NOTE 4 EN 13203-4 will specify the assessment of energy consumption for domestic hot water production of gas combined heat and power appliances (mCHP). This European Standard does not contain the requirements necessary for appliance capable of producing electrical energy without using the thermal energy. This European Standard does not cover all the requirements for mCHP appliances that are intended to be connected to gas grids where the quality of the distributed gas is likely to vary to a large extent over the lifetime of the appliance (see Annex DD).

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EN 15502-2-2 specifies, the requirements and test methods concerning, in particular the construction, safety, fitness for purpose, and rational use of energy, as well as the classification and marking of gas-fired central heating boilers that are fitted with atmospheric burners, fan assisted atmospheric burners and are hereafter referred to as “boilers”. Where the word boiler is used, this is to be read as the boiler including its connecting ducts, ducts and terminals, if any. This European Standard covers gas-fired central heating boilers type B11, B11BS, B12, B12BS, B13, B13BS according to the classification in CEN/TR 1749:2009: a) that have a nominal heat input (on the basis of net calorific value) not exceeding 70 kW; b) that use one or more combustible gases of the three gas families at the pressures stated in EN 437; c) where the temperature of the heat transfer fluid does not exceed 105 °C during normal operation; d) where the maximum operating pressure in the water circuit does not exceed 6 bar; e) which are declared in the technical instructions to be either a “low temperature boiler” or a “standard boiler”. If no declaration is given the boiler is to be considered a “standard boiler”; f) which are intended to be installed either indoors or in a partially protected place; g) which are either not intended to produce hot water, or are intended to produce hot water either by the instantaneous or storage principle, the whole being marketed as a single unit. h) which are designed for either sealed water systems or for open water systems. This European Standard is to be used in conjunction with the General Requirements Standard EN 15502-1. For applications within the scope of the PED further requirements may be necessary (e.g. situations where the maximum allowable temperature exceeds 110 °C, or where volume times maximum allowable pressure is over 50 bar x litres). This standard provides requirements for boilers with known constructions. For boilers with any alternative constructions, which might not fully be covered by this standard, the risk associated with this alternative construction shall be assessed. An example of an assessment methodology, based upon risk assessment and which covers the essential requirements of the Gas Appliance Directive, is given in Clause 11. This standard does not cover all the requirements for: i) appliances that are intended to be connected to gas grids where the quality of the distributed gas is likely to vary to a large extent over the lifetime of the appliance (see Annex DD of EN 15502-2-1:2012); j) appliances using flue dampers; k) appliances that have a nominal heat input (on the basis of net calorific value) exceeding 70 kW; l) appliances of the types A, B14, B2, B3, B4, B5 and C; m) appliances intended to be connected to a (common) flue having mechanical extraction; n) appliances with gas/air ratio control; o) modular boilers; p) boilers which can give rise to condensation under certain circumstances; q) boilers intended to be installed in a room with a foreseeable negative pressure relative to the pressure in the flue system.

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This European Standard specifies the requirements and test methods for the construction, safety, marking and rational use of energy of open fronted gas-fired independent space heaters with and without a fan to assist with the transportation of flue gases, hereafter referred to as appliances. Although the fan may be mounted outdoors, this standard only covers appliances where the body of the appliance is indoors. This standard applies to types B11AS, B11BS, B14AS, and B14BS (commonly referred to in this standard as type B1 appliances) open fronted gas-fired independent space heating appliances: - that incorporate an atmospheric burner; - that are connected directly to an open flue (see Figure 1), or to a device to evacuate the products of combustion (open-flued appliances); - that have a nominal heat input not exceeding 20 kW (based on the net calorific value); - that are delivered with the gas-carrying components, burner(s), combustion chamber and heat exchanger fully assembled. It does not apply to: - closed-fronted appliances; - decorative fuel effect appliances as specified in EN 509; - catalytic combustion appliances; - ducted-air appliances; - appliances installed by means of a closure plate.

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This European Standard specifies the requirements and test methods for the construction, safety, marking and rational use of energy of open fronted gas-fired independent space heaters with and without a fan to assist with the transportation of flue gases, hereafter referred to as appliances. Although the fan may be mounted outdoors, this standard only covers appliances where the body of the appliance is indoors.
This standard applies to types B11AS, B11BS, B14AS, and B14BS (commonly referred to in this standard as type B1 appliances) open fronted gas-fired independent space heating appliances:
-   that incorporate an atmospheric burner;
-   that are connected directly to an open flue (see Figure 1), or to a device to evacuate the products of combustion (open-flued appliances);
-   that have a nominal heat input not exceeding 20 kW (based on the net calorific value);
-   that are delivered with the gas-carrying components, burner(s), combustion chamber and heat exchanger fully assembled.
It does not apply to:
-   closed-fronted appliances;
-   decorative fuel effect appliances as specified in EN 509;
-   catalytic combustion appliances;
-   ducted-air appliances;
-   appliances installed by means of a closure plate (see 3.3.3.3).

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This European standard specifies the characteristics of safety, construction, performance and efficiency, the test methods and marking, of room sealed space heating equipment of type C (see CEN/TR 1749) with combustion air intake and outlet for the products of combustion in the wall, roof or floor, combined or not. These are referred to in the body of the text as "heaters", burning LPG, for vehicles and boats. This European standard only covers room sealed heaters also including those which have a combustion air fan, an integral hot air fan or both, only for vehicles and boats which are used for residential, recreational and commercial purposes. This European standard applies to heaters which are installed either outside or inside the habitable volume, but which have a combustion circuit sealed from the vehicle's interior, and nominal heat input which does not exceed 10 kW (Hs) operated at supply pressure of 30 mbar, 28 mbar, 37 mbar and 50 mbar, using, where appropriate, 12 V or 24 V DC electrical supply. Room sealed LPG space heating appliances for vehicles and boats are using very often warm air as a heat transfer medium. Annex B specifies additional requirements for appliances using water as a heat transfer medium. For private cars and vehicles or boats used for the transport of dangerous goods or for commercial personnel transport additional requirements may be necessary. This European standard does not cover requirements for storage water heaters (boilers) (see EN 15033). For appliances producing additional sanitary hot water (combi-boilers), see relevant clauses of EN 15033. These heaters are also suitable for caravan holiday homes.

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This European standard specifies the characteristics of safety, construction, performance and efficiency, the test methods and marking, of room sealed space heating equipment of type C (see CEN/TR 1749) with combustion air intake and outlet for the products of combustion in the wall, roof or floor, combined or not. These are referred to in the body of the text as "heaters", burning LPG, for vehicles and boats.
This European standard only covers room sealed heaters also including those which have a combustion air fan, an integral hot air fan or both, only for vehicles and boats which are used for residential, recreational and commercial purposes.
This European standard applies to heaters which are installed either outside or inside the habitable volume, but which have a combustion circuit sealed from the vehicle's interior, and nominal heat input which does not exceed 10 kW (Hs) operated at supply pressure of 30 mbar, 28 mbar, 37 mbar and 50 mbar, using, where appropriate, 12 V or 24 V DC electrical supply.
Room sealed LPG space heating appliances for vehicles and boats are using very often warm air as a heat transfer medium. Annex B specifies additional requirements for appliances using water as a heat transfer medium.
For private cars and vehicles or boats used for the transport of dangerous goods or for commercial personnel transport additional requirements may be necessary.
This European standard does not cover requirements for storage water heaters (boilers) (see EN 15033). For appliances producing additional sanitary hot water (combi-boilers), see relevant clauses of EN 15033.
NOTE   If a LPG operated heater is installed in a motorized vehicle being subject to European road traffic legislation, the directives of the Council for the approximation of the laws, regulations and administrative provisions of the member states relating to the heating of the interior of motor vehicles should be applied.
These heaters are also suitable for caravan holiday homes.

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This clause of Part 1 is replaced by the following. This International Standard deals with the safety of gas, oil and solid-fuel burning appliances having electrical connections, for household and similar purposes, their rated voltage being not more than 250 V for single-phase appliances and 480 V for other appliances. This standard covers the electrical safety and some other safety aspects of these appliances. All safety aspects are covered when the appliance also complies with the relevant standard for the fuel-burning appliance. If the appliance incorporates electric heating sources, it also has to comply with the relevant part 2 of IEC 60335. Appliances not intended for normal household use but which nevertheless may be a source of danger to the public, such as appliances intended to be used by laymen in shops, in light industry and on farms, are within the scope of this standard. As far as is practicable, this standard deals with the common hazards presented by appliances that are encountered by all persons in and around the home. However, in general, it does not take into account - the use of appliances by young children or infirm persons without supervision; - playing with the appliance by young children.

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This European Standard defines the specifications and test methods for the construction, safety, rational use of energy and fitness for purpose, environment, classification and marking of room sealed storage water heaters for the production of sanitary hot water using LPG for: vehicles as defined in article 1 of Directive 70/156/EEC (see 3.12); caravan holiday homes; agricultural, forestry and mobile machinery, and boats; hereafter called "appliance". This standard applies to appliances: type C1, C3 and C5 (room sealed, see CEN/TR 1749) with combustion air intake and outlet for the products of combustion (combined or not) in the wall or roof; fitted with atmospheric burners; appliances fitted with or without a fan on the combustion circuit; using LPG at the pressure I3BP(30) indicated in EN 437, (for caravan holiday homes and boats see Annex A); of nominal heat input not exceeding 7 kW (Hi); appliances whether connected to the water mains pressure or on board water supply; appliances using, where appropriate, 12 V or 24 V DC electrical supply (or appliances with an additional 230 V heating element). This standard does not contain all the necessary requirements for: appliances which fulfil a dual purpose role of space heating and heating water for sanitary hot water use. This standard covers type testing only.

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This European Standard defines the specifications and test methods for the construction, safety, rational use of energy and fitness for purpose, environment, classification and marking of room sealed storage water heaters for the production of sanitary hot water using LPG for: vehicles as defined in article 1 of Directive 70/156/EEC (see 3.12); caravan holiday homes; agricultural, forestry and mobile machinery, and boats; hereafter called "appliance". This standard applies to appliances: type C1, C3 and C5 (room sealed, see CEN/TR 1749) with combustion air intake and outlet for the products of combustion (combined or not) in the wall or roof; fitted with atmospheric burners; appliances fitted with or without a fan on the combustion circuit; using LPG at the pressure I3BP(30) indicated in EN 437, (for caravan holiday homes and boats see Annex A); of nominal heat input not exceeding 7 kW (Hi); appliances whether connected to the water mains pressure or on board water supply; appliances using, where appropriate, 12 V or 24 V DC electrical supply (or appliances with an additional 230 V heating element). This standard does not contain all the necessary requirements for: appliances which fulfil a dual purpose role of space heating and heating water for sanitary hot water use. This standard covers type testing only.

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This European Standard specifies the requirements, the test methods and the marking of domestic flueless space heaters, including diffusive catalytic combustion heaters, having a nominal heat input (Hs), not exceeding 4,2 kW burning 3rd family gases at nominal operating pressures not exceeding 50 mbar, referred to in the text as 'appliances'. This European Standard is applicable to the following types of appliances: a) fixed heaters burning commercial butane and/or commercial propane; b) portable or mobile heaters burning either commercial butane, or, commercial butane and commercial propane including those that incorporate a LPG container installation compartment for a transportable refillable liquefied petroleum LPG container. There are no specific thermal efficiency requirements appropriate to these types of appliance as: c) all the heat produced by the combustion process is released into the space to be heated; d) the requirements with regard to the combustion performance, which is a safety matter, ensure the effective burning of the fuel gas. It does not cover appliances incorporating electrically operated gas control systems. Annex A gives the details of the categories of appliances marketed in various countries. Requirements for appliances given in this standard assume that the supply of gas from the container will be governed by a pressure regulator having a maximum nominal outlet pressure of 50 mbar. This European Standard does not cover LPG containers for liquefied petroleum gas neither their associated regulator nor tubing and flexible hoses which shall comply with national requirements in force. This European Standard only covers type testing.

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This document specifies, for the purpose of type examination, the requirements and test methods for construction, safety, marking and rational use of energy of 2nd and 3rd family gas-fired domestic flueless space heating appliances having a nominal input not exceeding 6 kW (based on net calorific value).
It covers the following Type AAS fixed flueless heaters:
   Note: These are type A appliances fitted with an atmosphere sensing device, with or without a       fan
a)   heaters with or without a catalytic converter;
b)   Category 1 appliances burning gases of the second family;
c)   Category 2 appliances burning gases of the second and third families.
It does not cover
a)   Mobile heaters.
b)   Category 1 appliances burning gases of the third family.
c)   Portable flueless heaters.
d)   Diffusive catalytic combustion heaters.
There are no specific thermal efficiency requirements appropriate to these types of appliance as:
a)   All the heat produced by the combustion process is released into the space to be heated.
b)   The requirements with regard to the combustion performance, which is a safety matter, ensure the effective burning of the fuel gas.
This standard is only applicable to appliances which are to be type tested. Matters related to quality assurance systems, tests during production and to certificates of conformity of auxiliary devices are not dealt with by this standard.

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This standard specifies the requirements, the test methods and the marketing of  domestic flueless space heaters, including diffusive catalytic combustion heaters, having a nominal heat input (Hs), not exceeding 4,2 kW burning 3rd family gases at nominal operating pressures not exceeding 50 mbar, referred to in the text as 'appliances'.

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This document specifies, for the purpose of type examination, the requirements and test methods for construction, safety, marking and rational use of energy of 2nd and 3rd family gas-fired domestic flueless space heating appliances having a nominal input not exceeding 6 kW (based on net calorific value).
It covers the following Type AAS fixed flueless heaters:
NOTE   These are type A appliances fitted with an atmosphere sensing device, with or without a fan.
a)   heaters with or without a catalytic converter;
b)   Category 1 appliances burning gases of the second family;
c)   Category 2 appliances burning gases of the second and third families.
It does not cover
i.   Mobile heaters.
ii.   Category 1 appliances burning gases of the third family.
iii.   Portable flueless heaters.
iv.   Diffusive catalytic combustion heaters.
There are no specific thermal efficiency requirements appropriate to these types of appliance as:
   All the heat produced by the combustion process is released into the space to be heated.
   The requirements with regard to the combustion performance, which is a safety matter, ensure the effective burning of the fuel gas.
This standard is only applicable to appliances which are to be type tested. Matters related to quality assurance systems, tests during production and to certificates of conformity of auxiliary devices are not dealt with by this standard.

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This European Standard defines the specifications and test methods for the construction, safety, rational use of energy and fitness for purpose, environment, classification and marking of room sealed storage water heaters for the production of sanitary hot water using LPG for:
   vehicles as defined in article 1 of Directive 70/156/EEC (see 3.12);
   caravan holiday homes;
   agricultural, forestry and mobile machinery, and
   boats;
hereafter called "appliance".
This standard applies to appliances:
   type C1, C3 and C5 (room sealed, see CEN/TR 1749) with combustion air intake and outlet for the products of combustion (combined or not) in the wall or roof;
   fitted with atmospheric burners;
   appliances fitted with or without a fan on the combustion circuit;
   using LPG at the pressure I3BP(30) indicated in EN 437, (for caravan holiday homes and boats see Annex A);
   of nominal heat input not exceeding 7 kW (Hi);
   appliances whether connected to the water mains pressure or on board water supply;
   appliances using, where appropriate, 12 V or 24 V DC electrical supply (or appliances with an additional 230 V heating element).
This standard does not contain all the necessary requirements for:
   appliances which fulfil a dual purpose role of space heating and heating water for sanitary hot water use.
This standard covers type testing only.
NOTE 1   Alternatively appliances (storage water heaters) for caravan holiday homes may comply with EN 89.
NOTE 2   For space heating aspects see EN 624 "Specification for dedicated LPG appliances - Room sealed LPG space heating equipment for installation in vehicles and boats".

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This European Standard specifies the requirements and test methods for the construction, safety, marking and rational use of energy of gas-fired insets for heating more than one room that are intended to be built into a casing made from brickwork or similar material.
This European Standard is intended to be used in conjunction with EN 613:2000.
This European Standard is applicable to type B11BS insets burning gas:
- that incorporate an atmospheric burner;
- that are installed directly to an open flue or to a device to evacuate the products of combustion;
- that have a nominal heat input not exceeding 20 kW (based on the net calorific value).
In addition, this European Standard is also applicable to insets for heating more than one room which have a live fuel effect.
This European Standard is not applicable to:
- open fronted appliances as specified in EN 13278;
- decorative fuel effect appliances as specified in EN 509;
- convection heating appliances as specified in EN 613;
- catalytic combustion appliances;
- appliances in which the supply of combustion air and/or evacuation of products of combustion is achieved by mechanical means as specified in EN 1266;
- warm air heaters (which are subject of CEN/TC 180).
This European Standard is only applicable to insets which are intended to be type tested.

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This European Standard specifies the requirements and test methods concerning, in particular, the construction, safety, fitness for purpose, and rational use of energy, as well as the classification and marking of gas-fired central heating boilers that are fitted with atmospheric burners, fan assisted atmospheric burners or fully premixed burners, and are hereafter referred to as “boilers”.
This European Standard applies to boilers of type B, as listed in 4.2:
3   that use one or more combustible gases of the three gas families at the pressures stated in Tables 16 and 17;
3   that have a nominal heat input (on the basis of net calorific value) exceeding 300 kW, but not exceeding 1  000 kW, including modular boilers;
3   where the temperature of the heat transfer fluid does not exceed 105 °C during normal operation;
3   where the maximum operating pressure in the water circuit does not exceed 6 bar;
3   that can give rise to condensation under certain circumstances;
3   of the standard and low-temperature types.
This European Standard applies to boilers designed for sealed water systems or for open water systems.
This European Standard does not contain all the requirements necessary for boilers:
3   intended to be installed in the open or in living rooms;
3   permanently fitted with more than one flue outlet;
3   where the combustion circuit is sealed with respect to the room where the boiler is installed;
3   of the condensing type;
3   intended to be connected to a common flue having mechanical extraction;
3   fitted with a forced draught burner in accordance with EN 676 (see EN 303-7);
3   producing hot water for domestic purposes.
This standard only covers type testing.
Matters related to quality assurance systems, tests during production, and certificates of conformity of auxiliary devices are not dealt with in this European Standard.

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This clause of Part 1 is replaced by the following. This International Standard deals with the safety of gas, oil and solid-fuel burning appliances having electrical connections, for household and similar purposes, their rated voltage being not more than 250 V for single-phase appliances and 480 V for other appliances. This standard covers the electrical safety and some other safety aspects of these appliances. All safety aspects are covered when the appliance also complies with the relevant standard for the fuel-burning appliance. If the appliance incorporates electric heating sources, it also has to comply with the relevant part 2 of IEC 60335. Appliances not intended for normal household use but which nevertheless may be a source of danger to the public, such as appliances intended to be used by laymen in shops, in light industry and on farms, are within the scope of this standard. As far as is practicable, this standard deals with the common hazards presented by appliances that are encountered by all persons in and around the home. However, in general, it does not take into account - the use of appliances by young children or infirm persons without supervision; - playing with the appliance by young children.

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This European Standard specifies the requirements and test methods for the construction, safety, marking and rational use of energy of gas-fired insets for heating more than one room that are intended to be built into a casing made from brickwork or similar material.
This European Standard is intended to be used in conjunction with EN 613:2000.
This European Standard is applicable to type B11BS insets burning gas:
   that incorporate an atmospheric burner;
   that are installed directly to an open flue or to a device to evacuate the products of combustion;
   that have a nominal heat input not exceeding 20 kW (based on the net calorific value).
In addition, this European Standard is also applicable to insets for heating more than one room which have a live fuel effect.
This European Standard is not applicable to:
   open fronted appliances as specified in EN 13278;
   decorative fuel effect appliances as specified in EN 509;
   convection heating appliances as specified in EN 613;
   catalytic combustion appliances;
   appliances in which the supply of combustion air and/or evacuation of products of combustion is achieved by mechanical means as specified in EN 1266;
   warm air heaters (which are subject of CEN/TC 180).
This European Standard is only applicable to insets which are intended to be type tested.

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This European Standard defines the specifications and test methods for the construction, safety, rational use of energy and fitness for purpose, environment, classification and marking of room sealed storage water heaters for the production of sanitary hot water using LPG for:
   vehicles as defined in article 1 of Directive 70/156/EEC (see 3.12);
   caravan holiday homes;
   agricultural, forestry and mobile machinery, and
   boats;
hereafter called "appliance".
This standard applies to appliances:
   type C1, C3 and C5 (room sealed, see CEN/TR 1749) with combustion air intake and outlet for the products of combustion (combined or not) in the wall or roof;
   fitted with atmospheric burners;
   appliances fitted with or without a fan on the combustion circuit;
   using LPG at the pressure I3BP(30) indicated in EN 437, (for caravan holiday homes and boats see Annex A);
   of nominal heat input not exceeding 7 kW (Hi);
   appliances whether connected to the water mains pressure or on board water supply;
   appliances using, where appropriate, 12 V or 24 V DC electrical supply (or appliances with an additional 230 V heating element).
This standard does not contain all the necessary requirements for:
   appliances which fulfil a dual purpose role of space heating and heating water for sanitary hot water use.
This standard covers type testing only.
NOTE 1   Alternatively appliances (storage water heaters) for caravan holiday homes may comply with EN 89.
NOTE 2   For space heating aspects see EN 624 "Specification for dedicated LPG appliances - Room sealed LPG space heating equipment for installation in vehicles and boats".

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Add to the first list of indents:
-   of the standard type possibly producing condensation in certain circumstances;
-   of the low-temperature type;"
Delete in the second list of indents:
-   of the low-temperature type;

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To include: Updated references; technical changes resulting from the study of Formal Vote comments.

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To include: Updated references; technical changes resulting from the study of Formal Vote comments.

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2020-01-20: Originator of XML version: NEN (on behalf of NEN, ASI, DS, SFS, SIS, SN)

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2020-01-20: Originator of XML version: NEN (on behalf of NEN, ASI, DS, SFS, SIS, SN)

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This amendment is to account for technical comments received after the Formal Vote.

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Replace the second paragraph by the following text :
"This European Standard applies to standard boilers and low-temperature boilers with a nominal heat output not exceeding 1000 kW and with a water temperature at normal operation not exceeding 105 °C."
Replace the 2nd dash of the third paragraph by the following text :
"- condensing boilers;"
Delete the last but one paragraph of EN 303-3 :
"This European Standard does not contain all the necessary requirements for low temperature boilers. Nevertheless, the testing methods defined by this European Standard for the determination of useful efficiencies can be used for low temperature boilers, after being adapted in accordance with annex H."

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