This European Standard is applicable to gas-fired appliances producing domestic hot water. It applies to both instantaneous and storage gas-fired combined with electrical heat pump.
It applies to a package marketed as single unit or fully specified by the manufacturer that have:
- a heat input not exceeding 400 kW; and
- a hot water storage tank capacity (if any) not exceeding 2000 l.
EN 13203-1 sets out in qualitative and quantitative terms the performance in delivery of domestic hot water for a selected variety of uses. It also gives a system for presenting the information to the user. The present document sets out a method for assessing the energy performance of gas fired appliances combined with heat pump with electrically driven compressor according to EN 16147. It defines a number of daily load profiles for each domestic hot water use, kitchen, shower, bath and a combination of these, together with corresponding test procedures, enabling the energy performances of different gas-fired appliances to be compared and matched to the needs of the user. Where other technologies are combined with a gas-fired boiler or a water heater to produce domestic hot water, specific parts of EN 13203 apply.
The present document does not apply for gas boilers with recovery systems using combustion products as heat source for the electrical heat pump.
When the electrical heat pump does not work for domestic hot water production in the summer period, the present standard is not applicable for energy performances assessing, EN 13203-2 should be used.

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This document is applicable to gas-fired appliances producing domestic hot water. It applies to both instantaneous and storage tank appliances; waters-heaters and combination boilers that have:
- a heat input not exceeding 400 kW; and
- a hot water storage tank capacity (if any) not exceeding 2000 l.
In the case of combination boilers, with or without storage tank, domestic hot water production is integrated or coupled, the whole being marketed as a single unit.
EN 13203-1 sets out in qualitative and quantitative terms the performance in delivery of domestic hot water for a selected variety of uses. It also gives a system for presenting the information to the user. The present document sets out a method for assessing the energy performance of the appliances. It defines a number of daily load profiles for each domestic hot water use, kitchen, shower, bath and a combination of these, together with corresponding test procedures, enabling the energy performances of different gas-fired appliances to be compared and matched to the needs of the user. Where other technologies are combined with a gas-fired boiler or a water heater to produce domestic hot water, specific parts of EN 13203 apply.

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This European Standard is applicable to gas-fired appliances producing domestic hot water. It applies to sorption heat pumps connected to or including a domestic hot water storage tank. It applies to a package marketed as single unit or fully specified that have:
-   a heat input not exceeding 400 kW; and
-   a hot water storage tank capacity (if any) not exceeding 2000 l.
In the case of combination boilers, with or without storage tank, domestic hot water production is integrated or coupled, the whole being marketed as a single unit.
EN 13203 1 sets out in qualitative and quantitative terms the performance in delivery of domestic hot water for a selected variety of uses. It also gives a system for presenting the information to the user. The present document sets out a method for assessing the energy performance of the appliances. It defines a number of daily load profiles for each domestic hot water use, kitchen, shower, bath and a combination of these, together with corresponding test procedures, enabling the energy performances of different gas-fired appliances to be compared and matched to the needs of the user. Where other technologies are combined with a gas-fired boiler or a water heater to produce domestic hot water, specific parts of EN 13203 apply.
Horizontal ground heat sources are not covered by the scope of the present European Standard.

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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 ∆pmax, 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 ∆pmax, 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 does not cover all the requirements for:
k)   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 XC);
l)   Appliances using flue dampers;
m)   Appliances of the types B21, B31, B51, C21, C41, C51, C61, C71, C81 ,C(12) and C(13);
n)   C7 appliances that have a nominal heat input (on the basis of net calorific value) exceeding 70 kW;
o)   Appliances incorporating flexible plastic flue liners;
p)   C(10) boilers:
1)    without a gas-air ratio control, or
2)    which are non-condensing appliances, or
3)    which have a maximum safety pressure difference at minimum heat input not equal to 25 Pa (∆pmax, saf(min)), - ;
q)   C(11) boilers that have boiler modules:
1)    without a gas-air ratio control, or
2)    which are non-condensing appliances, or
3)    which have a maximum safety pressure difference at minimum heat input not equal to 25 Pa (∆pmax, saf(min));
r)   Appliances intended to be connected to a (common) flue having mechanical extraction.

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This European Standard is applicable to gas-fired mCHP appliances producing domestic hot water and electricity. The electricity is generated in a process linked to the production of useful heat.
It applies to a mCHP appliances marketed as single unit or as a package fully specified by a manufacturer that have:
-   a gas heat input not exceeding 70 kW;
-   an electrical output not exceeding 50 kW and
-   a hot water storage capacity not exceeding 500 l.
EN 13203 1 sets out in qualitative and quantitative terms the performance in delivery of domestic hot water for a variety of uses. It also gives a system for presenting the information to the user.
The present document sets out a method for assessing the energy performance of gas fired mCHP appliances. It defines a number of daily tapping cycles for each domestic hot water use, kitchen, shower, bath and a combination of these, together with corresponding test procedures, enabling the energy performances of different gas-fired appliances to be compared and matched to the needs of the user.
When the mCHP generator does not supply domestic hot water in the summer period, the present standard is not applicable. EN 13203 2 will be used for performance assessment of these generators.

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This European Standard is applicable to gas-fired appliances producing domestic hot water. It applies to both instantaneous and storage appliances; water-heaters and combination boilers that have:
-   heat input not exceeding 70 kW; and
-   hot water storage capacity (if any) not exceeding 500 l.
In the case of combination boilers, with or without storage tank, domestic hot water production is integrated or coupled, the whole being marketed as a single unit.
This European Standard sets out in qualitative and quantitative terms the performance in delivery of domestic hot water for a selected variety of uses. It also gives a system for presenting the information to the user.

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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 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.
NOTE   Negative pressure relative to the pressure in the flue system can for example be caused by mechanical or thermal ventilation in airtight buildings.

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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:
¾   that use one or more combustible gases of the three gas families at the pressures stated in Tables 16 and 17;
¾   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;
¾   where the temperature of the heat transfer fluid does not exceed 105 °C during normal operation;
¾   where the maximum operating pressure in the water circuit does not exceed 6 bar;
¾   that can give rise to condensation under certain circumstances;
¾   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:
¾   intended to be installed in the open or in living rooms;
¾   permanently fitted with more than one flue outlet;
¾   where the combustion circuit is sealed with respect to the room where the boiler is installed;
¾   of the condensing type;
¾   intended to be connected to a common flue having mechanical extraction;
¾   fitted with a forced draught burner in accordance with EN 676 (see EN 303-7);
¾   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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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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This 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 standard applies to boilers of type B, as listed in 4.2:   ð that use one or more combustible gases of the three gas families at the pressures stated in Tables 14 and 15;  ð that have a nominal heat input (net CV basis) exceeding 70 kW, but not exceeding 300 kW, including modular boilers;  ð where the temperature of the heat transfer fluid does not exceed 105 øC during normal operation;  ð where the maximum operating pressure in the water circuit does not exceed 6 bar.  The standard applies to boilers designed for sealed water systems or for open water systems.  The standard does not contain all the requirements necessary for boilers:   ð intended to be installed in the open or in living rooms;  ð permanently fitted with more than one flue outlet;  ð where the combustion circuit is sealed with respect to the room where the boiler is installed;  ð of the condensing type;  ð of the low temperature type;  ð intended to be connected to a common flue having mechanical extraction;  ð fitted with a forced draught burner in accordance with EN 676;  ð producing hot water for domestic purposes.  This standard only covers type testing.

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This European Standard is applicable to solar supported gas-fired appliances producing domestic hot water. It applies to a system marketed as single unit or a system fully specified by a manufacturer that:
-   has a gas heat input not exceeding 70 kW; and
-   has a hot water storage capacity not exceeding 500 l; and
-   is equipped with at least one solar collector; and
-   is, with regard to the solar hydraulic circuit, considered as a forced circulation system (definition according to EN ISO 9488:1999).
The appliances covered by this European Standard are described in Annex C.
This European Standard does not apply to thermo-siphon or integral collector storage systems (definitions according to EN ISO 9488:1999).
NOTE   In principle, the energy consumption of thermo-siphon solar preheat systems and integral collector storage preheat systems can also be assessed on the basis of this standard. One appropriate procedure for that purpose is to calculate the temperature level of the domestic hot water withdrawn from the thermal solar system for the reference conditions defined in this standard by using the numerical system model and the thermal solar system performance parameters according to ISO 9459-5. Based on the temperature level of the hot water withdrawn from the store the energy consumption of the gas appliance should be determined. This determination can either be done by means of calculations or by performing a test according to EN 13203-2 and using instead of the cold water inlet temperature the hot water temperature withdrawn from the store.
This standard is not intended to assess the performance:
-   of the solar collector(s), which should comply with EN 12975-1 and EN 12975-2; and
-   thermal solar systems and components, which should comply with EN 12976-1 and EN 12976-2.
(...)

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This European Standard specifies the common requirements and test methods, 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.
NOTE For further background information on appliance types see CEN/TR 1749:2014 [1].
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 water is below or above 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 instructions for installation 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 also hot water either by the instantaneous or storage principle as a single unit.
This European Standard applies to boilers designed for sealed water systems or for open water systems.
NOTE 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 (see Annex EE).
This European Standard is not intended to cover appliances designed and constructed to burn gas containing toxic components.

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This European Standard specifies the requirements and test methods for the construction, the safety and the rational energy usage for gas-fired central heating boilers equipped with a forced draught burner. These boilers are formed of the assembly of a boiler body and a forced draught gas burner achieved on the production site of the manufacturer, the whole being designed and marketed as a complete boiler. The boiler body shall be in accordance with EN 303-1. The construction of the forced draught gas burner shall be in accordance with EN 676.

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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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This European Standard specifies the requirements and test methods for the construction, the safety and the rational energy usage of an assembly made up of a boiler body complying with EN 303- 11) and a forced draught gas burner complying with EN 676, using combustible gases, hereafter referred to as a "boiler".  This European Standard applies to a boiler:  - with a nominal output not exceeding 1 000 kW.  This European Standard does not contain all the necessary requirements for:  - assemblies designed as units;  - condensing boilers and low temperature boilers;  - boilers intended to be installed in the open;  - boilers permanently fitted with more than one flue outlet;  - boilers fitted with a draught diverter;  -  boilers intended to be connected to a common flue having mechanical    extraction.  This European Standard does not apply to living-space dedicated boilers   If the boiler body has already been tested with a liquid fuel burner, in accordance with EN 303-1, EN 303-2 and EN 304, only the tests described in annex G need to be performed.  In the case of a range of boilers, see annex F.  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.  This European Standard only covers type testing.

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This document is applicable to gas-fired mCHP appliances producing domestic hot water and electricity. The electricity is generated in a process linked to the production of useful heat.
It applies to a mCHP appliances marketed as single unit or as a package fully specified by a manufacturer that have:
-   a gas heat input not exceeding 400 kW,
-   an electrical output not exceeding 50 kW, and
-   a hot water storage capacity (if any) not exceeding 2 000 l.
EN 13203 1:2015 sets out in qualitative and quantitative terms the performance in delivery of domestic hot water for a variety of uses. It also gives a system for presenting the information to the user.
The present document sets out a method for assessing the energy performance of gas fired mCHP appliances. It defines a number of daily tapping cycles for each domestic hot water use, kitchen, shower, bath and a combination of these, together with corresponding test procedures, enabling the energy performances of different gas-fired appliances to be compared and matched to the needs of the user.
When the mCHP generator does not supply domestic hot water in the summer period, the present standard is not applicable. FprEN 13203 2:2018 is used for performance assessment of these generators.

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Sorption heat pumps connected to or including a domestic hot water storage tank. It applies to a package marketed as single unit or fully specified that have:
— a heat input not exceeding 400 kW; and
— a hot water storage tank capacity (if any) not exceeding 2000 l.
In the case of combination boilers, with or without storage tank, domestic hot water production is integrated or coupled, the whole being marketed as a single unit.
EN 13203-1 sets out in qualitative and quantitative terms the performance in delivery of domestic hot water for a selected variety of uses. It also gives a system for presenting the information to the user. The present document sets out a method for assessing the energy performance of the appliances. It defines a number of daily load profiles for each domestic hot water use, kitchen, shower, bath and a combination of these, together with corresponding test procedures, enabling the energy performances of different gas-fired appliances to be compared and matched to the needs of the user. Where other technologies are combined with a gas-fired boiler or a water heater to produce domestic hot water, specific parts of EN 13203 apply.
Horizontal ground heat sources are not covered by the scope of the present European Standard.

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This European Standard is applicable to gas-fired appliances producing domestic hot water. It applies to both instantaneous and storage gas-fired appliances combined with electrical heat pump. It applies to a package marketed as single unit or fully specified by a manufacturer that have:   - a gas heat input not exceeding 70 kW;  - a hot water storage capacity not exceeding 500 litres.  This European Standard EN 13203 is formed in several parts which cover aspects of domestic hot water production.  Standard EN 13203-1 sets out in qualitative and quantitative terms the performance in delivery of domestic hot water for a selected variety of uses. It also gives a system for presenting the information to the user. This first part complements EN 26, EN 89 and EN 625.  This Part 5 sets out a method for assessing the energy performance of gas fired appliances combined with heat pump with electrically driven compressor according to EN 16417.  This European standard does not apply for gas boilers with recovery systems using combustion products as heat source for the electrical heat pump.  When the electrical heat pump does not work for domestic hot water production in the summer period, the present standard is not applicable for energy performances assessing, EN 13203-2 must be used for energy performances assessing.

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This European Standard is applicable to gas-fired mCHP appliances producing domestic hot water and electricity. The electricity is generated in a process linked to the production of useful heat. It applies to a mCHP appliances marketed as single unit or as a package fully specified by a manufacturer that have:
— a gas heat input not exceeding 400 kW;
— an electrical output not exceeding 50 kW and
— a hot water storage capacity (if any) not exceeding 2000 l.
prEN 13203-1:20xx sets out in qualitative and quantitative terms the performance in delivery of domestic hot water for a variety of uses. It also gives a system for presenting the information to the user.
The present document sets out a method for assessing the energy performance of gas fired mCHP appliances. It defines a number of daily tapping cycles for each domestic hot water use, kitchen, shower, bath and a combination of these, together with corresponding test procedures, enabling the energy performances of different gas-fired appliances to be compared and matched to the needs of the user.
When the mCHP generator does not supply domestic hot water in the summer period, the present standard is not applicable. PrEN 13203-2:2020 is used for performance assessment of these generators.

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When final draft in CCMC - Double check that a decision (to submit to FV) is taken both by CEN/TC 166 and CEN/TC 109 - See CEN/BT Decision 72/2014

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EN 15502-1:2020, Clause 1 is replaced by the following:
This document specifies, the requirements and test methods concerning, 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 document is to be used in conjunction with FprEN 15502-1:2020.
This document covers certain gas-fired central heating boilers from the types C1 up to C(11) and the types B2, B3 and B5:
NOTE 1   For further background information on appliance types see EN 1749:2020.
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 437:2018;
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 can give rise to condensation under certain circumstances;
f)   which are declared in the instructions for installation 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 inside a building or in a partially protected place;
h)   which are intended to produce also hot water either by the instantaneous or storage principle 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.
k)   which are from the types C(10) that are equipped with a gas-air ratio control and that have a ∆pmax, saf(min) of 25 Pa, and C(11) that have condensing boiler modules that are equipped with a gas-air ratio control and that have a ∆pmax, saf(min) of 25 Pa.
NOTE 2   This document 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, is given in Clause 11.
This document does not cover all the requirements for:
aa)   appliances above 1 000 kW;
ab)   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 AB);
ac)   appliances using flue dampers;
ad)   appliances of the types B21, B31, B51, C21, C41, C51, C61, C71, C81, C(12) and C(13);
ae)   C7 appliances that have a nominal heat input (on the basis of net calorific value) exceeding 70 kW;
af)   appliances incorporating flexible plastic flue liners;
ag)   C(10) boilers:
1)   without a gas-air ratio control, or
2)   which are non-condensing appliances, or
3)   which have a maximum safety pressure difference at minimum heat input not equal to 25 Pa (∆pmax, saf(min));
ah)   C(11) boilers that have boiler modules:
1)   without a gas-air ratio control, or
2)   which are non-condensing appliances, or
3)   which have a maximum safety pressure difference at minimum heat input not equal to 25 Pa (∆pmax, saf(min));
ai)   appliances intended to be connected to a  flue having mechanical extraction;
aj)   surface temperatures of external parts particular to children and elderly people;
ak)   appliances that are intended to burn natural gases of the second family where hydrogen is added to the natural gas;
al)   appliances equipped with an adaptive combustion control function (ACCF);
am)   boilers intended to be installed in areas accessible to elderly people and children.

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This European Standard is applicable to gas-fired appliances producing domestic hot water. It applies to
condensing combination boilers with passive flue heat recovery device (PFHRD) that have:
— a heat input not exceeding 400 kW,
— a hot water storage tank capacity (if any) not exceeding 2000 l,
— a declared load profile between M to 4XL.
In the case of combination boilers, with or without storage tank, domestic hot water production is integrated
or coupled, the whole being marketed as a single unit.
For this standard, some tests and calculation results of FprEN 13203-2:2018 are used to calculate the energy consumptions.

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This 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 standard applies to boilers of type C:- that use one or more combustible gases of the three gas families;- that have a nominal heat input (on the basis of net caloric value)exceeding 70 kW, but not exceeding 1000 kW, including modular boilers;- where the temperature of the heat transfer fluid does not exceed 105°C during normal operation;- where the maximum operating pressure in the water circuit does not exceed 6 bar;- which can give rise to condensation under certain circumstances.The standard applies to boilers designed for sealed water systems or for open water systems.The standard does not contain all the requirements necessary for boilers:- intended to be installed in the open or in living rooms;- permanently fitted with more than one flue outlet;- of the condensing type;- intended to be connected to a common flue having mechanical extraction;- type C41, C51, C61, C7, and C81 boilers;- fitted with a forced draught burner in accordance with EN 676;- producing hot water for domestic purposes.This standard only covers type testing.

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Amendment for the addition of ecodesign requirements (Regulation No 813/2013)
and energy labelling requirements (Regulation No 811/2013)
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”. If no declaration is given the boiler is to be considered a “standard 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 is applicable to gas-fired micro CHP appliances producing domestic hot water and electricity. The electricity is generated in a process linked to the production of useful heat.
It applies to a system marketed as single unit or a system fully specified by a manufacturer that have:
- a gas heat input not exceeding 70 kW;
- an electrical output not exceeding 50 kWe; and
- a hot water storage capacity not exceeding  500 litres.
This European Standard EN 13203 is formed in four parts which cover aspects of domestic hot water production.
Standard EN 13203-1 sets out in qualitative and quantitative terms the performance in delivery of domestic hot water for a selected variety of uses. It also gives a system for presenting the information to the user. This first part complements EN 26, EN 89 and EN 625.
Standard EN 13203-2 sets out a method for assessing the energy performance of the appliances. It defines a number of daily tapping cycles for each domestic hot water use, kitchen, shower, bath and a combination of these, together with corresponding test procedures, enabling the energy performances of different gas-fired appliances to be compared and matched to the needs of the user.
Standard EN 13203-3 deals with solar systems.
Note : a draft standard prEN 13203-5 for "Gas-fired domestic appliance producing hot water - Part 5 : Assessment of energy consumption of gas fired appliances combined with electrical heat pump not exceeding 70 kW heat input and 300 l water storage capacity" is also under preparation by CEN/TC109/WG4.
All standards and drafts series EN 13203 are worked out under Mandate M324 against Energy Labelling Directive 92/75/EC under revision.

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This document is applicable to gas-fired appliances producing domestic hot water.
It applies to both instantaneous and storage tank appliances; waters-heaters and combination boilers that have:
— a heat input not exceeding 400 kW; and
— a hot water storage tank capacity (if any) not exceeding 2000 l.
In the case of combination boilers, with or without storage tank, domestic hot water production is integrated or coupled, the whole being marketed as a single unit.
The water heaters covered by the present standard are considered "conventional water heaters" as defined by the Transitional Methods (Commission Communication 2014/C 207/03) then in the calculation formula for the Annual Electricity Consumption (AEC), Qcor is equal to zero.
EN 13203-1 sets out in qualitative and quantitative terms the performance in delivery of domestic hot water for a selected variety of uses. It also gives a system for presenting the information to the user. The present document sets out a method for assessing the energy performance of the appliances. It defines a number of daily load profiles for each domestic hot water use, kitchen, shower, bath and a combination of these, together with corresponding test procedures, enabling the energy performances of different gas-fired appliances to be compared and matched to the needs of the user. Where other technologies are combined with a gas-fired boiler or a water heater to produce domestic hot water, specific parts of EN 13203 apply.

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This document specifies, the requirements and tests methods concerning, in particular, the construction, safety, fitness for purpose, and rational use of energy, as well as the classification and marking of hybrid products.
The hybrid product is composed by:
-   a gas boiler as heat generator which could supply the heat demand in all operating conditions;
-   an electrical heat pump, as heat generator, which has not to fulfil the heat demand in all operating conditions;
-   a control unit (see definition 3.10).
The gas boiler as part of the hybrid product covered by this document is a gas-fired central heating boilers from the types C1 up to C9 and the types B2, B3 and B5, according to the classification in EN 1749:2020:
a)   that have a nominal heat input (on the basis of gross calorific value) not exceeding 400 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 shall be classified as gas boiler;
f)   which are intended to be installed either indoors or outdoors in a partially protected place;
g)   which may include the facility 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 document provides requirements for boilers with known constructions. For boilers with any alternative constructions, which might not fully be covered by this document, 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 Regulation UE/426/2016, is given in Clause 11.
This document does not cover all the requirements for:
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);
a)   appliances using flue dampers;
b)   appliances of the types B21, B31, B51, C21, C41, C51, C61, C71 and C81;
c)   appliances incorporating flexible plastic flue liners;
d)   appliances designed to become connected to a combined flue duct system that is designed to operate under overpressure (for example Ca)).
This document specifies minimum operating requirements which ensure that the products are fit for the use designated by the manufacturer when used for space heating and/or DHW production.
This part specifies the common requirements and test methods concerning, in particular the construction, safety, fitness for purpose, and rational use of energy.
This document is to be used in conjunction with:
a)   the gas fired boiler, the generic part EN 15502-1 and specific Part 2-1 and Part 2-2.
b)   the electrical heat pump, EN 14511-4:2018, EN 378-1:2016 to EN 378-4:2016+A1:2019 and FprEN 14825:2020.
c)   electrical safety, EN 60335-1:2019, EN 60335-2-102:2016, EN 60335-2-40:2012, EN 60335-2-40/A2:2009 and EN 60204-1.
d)   for domestic hot water production, EN 13203-5.

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This document is applicable to solar supported gas-fired appliances producing domestic hot water.
It applies to a system marketed as single unit or a fully specified system that:
- has a gas heat input not exceeding 70 kW; and
- has a hot water storage tank capacity not exceeding 500 l; and
- is equipped with at least one solar collector; and
- is, with regard to the solar hydraulic circuit, considered as a forced circulation system (definition according to EN ISO 9488:1999).
The appliances covered by this European Standard are described in Annex E (normative).
This document does not apply to thermo-siphon or integral collector storage tank systems according to definitions given by EN ISO 9488:1999.
NOTE In principle, the energy consumption of thermo-siphon solar preheat systems and integral collector storage tank preheat systems can also be assessed on the basis of this standard. One appropriate procedure for that purpose is to calculate the temperature level of the domestic hot water withdrawn from the thermal solar system for the reference conditions defined in this standard by using the numerical system model and the thermal solar system performance parameters according to ISO 9459-5. Based on the temperature level of the hot water withdrawn from the store the energy consumption of the gas appliance should be determined. This determination can either be done by means of calculations or by performing a test according to FprEN 13203-2:2020 and using instead of the cold water inlet temperature the hot water temperature withdrawn from the store.
This document is not intended to assess the performance:
- of the solar collector(s), which should comply with EN 12975-1:+A1:2010 and EN 12975-2:2006; and - thermal solar systems and components, which should comply with EN 12976-1:2017 and EN 12976- 2:2019.
Standard EN 13203-1:2015 sets out in qualitative and quantitative terms the performance in delivery of domestic hot water for a selected variety of uses. It also gives a presenting the information to the user. The present document sets out a method for assessing the energy performance of a solar supported appliance. It defines a number of daily tapping cycles for each domestic hot water use, kitchen, shower, bath and a combination of these, together with corresponding test procedures including information about the available solar radiation. It enables the energy performances of different gas-fired appliances to be compared and matched to the needs of the user.

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This European Standard is applicable to gas-fired appliances producing domestic hot water. It applies to both instantaneous and storage tank appliances; waters-heaters and combination boilers that have:
-   a heat input not exceeding 70 kW; and
-   a hot water storage tank capacity (if any) not exceeding 500 l.
In the case of combination boilers, with or without storage tank, domestic hot water production is integrated or coupled, the whole being marketed as a single unit.
EN 13203-1 sets out in qualitative and quantitative terms the performance in delivery of domestic hot water for a selected variety of uses. It also gives a system for presenting the information to the user. The present document sets out a method for assessing the energy performance of the appliances. It defines a number of daily tapping cycles for each domestic hot water use, kitchen, shower, bath and a combination of these, together with corresponding test procedures, enabling the energy performances of different gas-fired appliances to be compared and matched to the needs of the user. Where other technologies are combined with a gas-fired boiler or a water heater to produce domestic hot water, specific parts of EN 13203 apply.

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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, according to the classification in CEN/TR 1749:
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 will be used in conjunction with the General Requirements Standard EN 15502-1.
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 does not cover all the requirements for:
k)   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);
l)   Appliances using flue dampers;
m)   Appliances of the types B21, B31, B51, C21, C41, C51, C61, C71 and C81;
n)   C7 appliances that have a nominal heat input (on the basis of net calorific value) exceeding 70 kW;
o)   Appliances incorporating flexible plastic flue liners;
p)   Appliances designed to become connected to a combined flue duct system that is designed to operate under overpressure (for example Ca));
q)   Appliances incorporating a combined combustion products circuit that is designed to operate under overpressure (for example Cb));
r)   Appliances intended to be connected to a (common) flue having mechanical extraction.

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This document is applicable to gas-fired appliances producing domestic hot water. It applies to both instantaneous and storage appliances; water-heaters and combination boilers that have:
¾   heat input not exceeding 70 kW; and
¾   hot water storage capacity (if any) not exceeding 300 l.
In the case of combination boilers, with or without storage, domestic hot water production is integrated or coupled, the whole being marketed as a single unit.
This document is formed in two parts, which cover two aspects of domestic hot water production.
EN 13203-1 sets out in qualitative and quantitative terms the performance in delivery of domestic hot water for a selected variety of uses. It also gives a system for presenting the information to the user. This first part complements EN 26, EN 89 and EN 625.
EN 13203-2 sets out a method for assessing the energy performance of the appliances. It defines a number of daily delivery programmes for each domestic hot water use, kitchen, shower, bath and a combination of these, together with corresponding test procedures, enabling the energy performances of different gas-fired appliances to be compared and matched to the needs of the user.

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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 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 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 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:
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”. If no declaration is given the boiler is to be considered a “standard boiler”
f)   which are intended to be installed 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.
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 r litres).
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 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 European Standard is not intended to cover appliances intended to being connected to gas grids where the quality of the distributed gas is likely to vary to a large extend over the lifetime of the appliance.

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This European Standard is applicable to gas-fired appliances producing domestic hot water. It applies to both instantaneous and storage appliances; waters-heaters and combination boilers that have:
¾    heat input not exceeding 70 kW, and
¾    hot water storage capacity (if any) not exceeding 300 l.
In the case of combination boilers, with or without storage, domestic hot water production is integrated or coupled, the whole being marketed as a single unit.
This European Standard EN 13203 is formed in two parts, which cover two aspects of domestic hot water production.
EN 13203-1 sets out in qualitative and quantitative terms the performance in delivery of domestic hot water for a selected variety of uses. It also gives a system for presenting the information to the user. This first part complements EN 26, EN 89 and EN 625.
The present European Standard EN 13203-2 sets out a method for assessing the energy performance of the appliances. It defines a number of daily tapping cycles for each domestic hot water use, kitchen, shower, bath and a combination of these, together with corresponding test procedures, enabling the energy performances of different gas-fired appliances to be compared and matched to the needs of the user.

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This document applies to gas-fired central heating boilers, which are declared by the manufacturer to be "condensing boilers":
¾   of types C (excluding appliances without a fan) and B,
¾   using one or more gases corresponding to the three gas families, and
¾   for which the nominal heat input is greater than 70 kW but not exceeding 1 000 kW. This document only covers type testing.
This document completes or modifies the standards EN 656, EN 13836, and prEN 15420 hereafter called "boiler standards". It specifies supplementary requirements for condensing boilers.

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This amendment extends the original field of application of EN 297 that was restricted to type B-boilers with atmospheric burners, to type B boilers with fan-assisted burners.

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This amendment 6 will extend the field of application of EN 297 to boilers intended to be installed in the open air in a partially protected place.

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This European standard applies to gas-fired central heating boilers, which are declared by the manufacturer to be "condensing boilers":  - of types B (excluding appliances without a fan) and C, - using one or more gases corresponding to the three gas families, and - for which the nominal heat input is less than or equal to 70 kW.  This European standard only covers type testing.  This European standard completes or modifies the standards EN 297, prEN 483 and EN 625, hereafter called "boiler standards". It specifies supplementary requirements for condensing boilers.

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Migrated from Progress Sheet (TC Comment) (2000-07-10): Need of a BT C for allowing more amendments than foreseen in IR ++ Exceptional derogation from IR granted in case of EN 297, allowing more than ++ 3 Amd. (but not more than 5) (BT 27/1996)

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Migrated from Progress Sheet (TC Comment) (2000-07-10): "SPECIAL CASE " !! ++ Exceptional derogation from IR granted in case of EN 297, allowing more than ++ 3 Amd. (but not more than 5) (BT 27/1996) ++ Combination of Amd. for final publ. (A2+A3) to be disc. with the Secretary.

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Migrated from Progress Sheet (TC Comment) (2000-07-10): Has to consider also Directive 92/42 on efficiency of boilers !! ++ Exceptional derogation from IR granted in case of EN 297, allowing more than ++ 3 Amd. (but not more than 5) (BT 27/1996)

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This standard supplements standards EN 297, prEN 483 and prEN 677, hereafter called 'boiler standards'. It specifies the supplementary requirements and tests for the construction, safety, rational use of energy, fitness for purpose, classification and marking related to the domestic hot water operation of combination boilers.   The domestic hot water is produced on either the instantaneous or storage principle. The domestic hot water production is integrated or coupled, the whole being marketed as a single unit.  This standard does not apply to two appliances included in the same case which operate independently of each other - a boiler and a water heater - even if they have a common flue.  This standard only covers type testing.

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This European Standard specifies the requirements and test methods for the construction, safety, fitness for purpose, rational use of energy, classification and marking of gas-fired central heating boilers, hereafter referred to as 'boilers'.  This standard applies to type B11 and BB11BS boilers:  - fitted with atmospheric burners; - that use gases corresponding to the three gas families and to the pressures   stated in 4.1.4; - that have a nominal heat input not exceeding 70 kW (on net calorific value); - where the temperature of the water does not exceed 95 øC during normal   operation; - where the maximum water-side operating pressure does not exceed 6 bar.  This standard does not contain all the necessary requirements for:  boilers:  - intended to be installed in the open; - having multiple heating units with a single draught diverter; - with fan-assisted combustion; - of the condensing type; i- ntended to be connected to a common flue having mechanical extraction; - fitted with manual or automatic means of adjusting the air supply and/or   adjusting the evacuation of the combustion products; - of the combination type (central heating and domestic hot water production);  appliances:  - combining the functions of an independent space heater and a hot water   generator for central heating.  This standard only covers type testing.

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This document 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 document applies to boilers of type C, as listed in 4.2:
-   that use one or more combustible gases of the three gas families at the pressures stated in Tables 14 and 15;
-   that have a nominal heat input (on the basis of net calorific value) exceeding 70 kW, but not exceeding 1 000 kW, including modular boilers;
-   where the temperature of the heat transfer fluid does not exceed 105 °C during normal operation;
-   where the maximum operating pressure in the water circuit does not exceed 6 bar;
-   which can give rise to condensation under certain circumstances.
The document applies to boilers designed for sealed water systems or for open water systems.
The document does not contain all the requirements necessary for boilers:
-   intended to be installed in the open or in living rooms;
-   permanently fitted with more than one flue outlet;
-   of the condensing type;
-   intended to be connected to a common flue having mechanical extraction;
-   type C21, C41, C51, C61, C7 and C81 boilers;
-   fitted with a forced draught burner in accordance with EN 676;
-   producing hot water for domestic purposes.
This document only covers type testing.

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Delete the footnote no.1.

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TC - Replace Tables 18 and 19

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This amendment 2 will incorporate in EN 483:1999 the EU Directive 92/42/EEC on efficiency requirements.

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This 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 premixed burners, and that are hereafter referred to as "boilers".

  • Standard
    136 pages
    English language
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