Gas fired domestic appliances producing hot water - Part 1: Assessment of performance of hot water deliveries

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.

Gasbeheizte Geräte für die sanitäre Warmwasserbereitung für den Hausgebrauch - Teil 1: Bewertung der Leistung der Warmwasserbereitung

Appareils domestiques produisant de l'eau chaude sanitaire utilisant les combustibles gazeux - Partie 1 : Évaluation de la performance en puisage d’eau chaude

La présente norme européenne s’applique aux appareils de production d'eau chaude sanitaire utilisant les combustibles gazeux. Il s’applique à la fois aux appareils instantanés ou à accumulation, chauffe-eau ou chaudières à deux services, qui ont :
-   un débit calorifique inférieur ou égal à 70 kW ; et
-   une capacité de stockage en eau (si elle existe) inférieure ou égale à 500 l.
Dans le cas des chaudières à deux services avec ou sans ballon, la production d’eau chaude sanitaire est intégrée ou accolée, l’ensemble étant commercialisé comme une seule unité.
La présente norme européenne définit en termes qualitatifs et quantitatifs la performance en puisage d'eau chaude sanitaire pour une variété d’usages sélectionnée. Il fournit également un système pour présenter les informations à l’utilisateur.

Plinske gospodinjske naprave za pripravo tople sanitarne vode - 1. del: Ocenjevanje zmogljivosti priprave tople vode

Ta dokument se uporablja za plinske gospodinjske naprave za pripravo tople sanitarne vode. Velja za pretočne in shranjevalne naprave, grelnike za vodo in kombinirane kotle s:
– toplotno močjo, ki ne presega 70 kW in
– prostornino (če je na voljo) za vročo vodo do 500 l.
Pri kombiniranih kotlih, z rezervoarjem ali brez, je priprava tople vode za gospodinjstva integrirana ali združena, pri čemer se celota trži kot ena enota.
Ta dokument v kakovostnem in količinskem smislu določa zmogljivost za pripravo tople sanitarne vode za različne izbrane namene. Zajema tudi sistem za predstavitev informacij uporabniku.

General Information

Status
Withdrawn
Publication Date
22-Sep-2015
Withdrawal Date
22-Sep-2025
Current Stage
9960 - Withdrawal effective - Withdrawal
Start Date
11-Jun-2025
Completion Date
23-Sep-2025

Relations

Standard
EN 13203-1:2015
English language
32 pages
sale 10% off
Preview
sale 10% off
Preview
e-Library read for
1 day

Frequently Asked Questions

EN 13203-1:2015 is a standard published by the European Committee for Standardization (CEN). Its full title is "Gas fired domestic appliances producing hot water - Part 1: Assessment of performance of hot water deliveries". This standard covers: 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.

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.

EN 13203-1:2015 is classified under the following ICS (International Classification for Standards) categories: 91.140.65 - Water heating equipment. The ICS classification helps identify the subject area and facilitates finding related standards.

EN 13203-1:2015 has the following relationships with other standards: It is inter standard links to EN 13203-1:2006, EN 13203-1:2025. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

EN 13203-1:2015 is associated with the following European legislation: EU Directives/Regulations: 2009/125/EC, 2009/142/EC, 814/2013; Standardization Mandates: M/495, M/534. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.

You can purchase EN 13203-1:2015 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CEN standards.

Standards Content (Sample)


SLOVENSKI STANDARD
01-december-2015
1DGRPHãþD
SIST EN 13203-1:2006
Plinske gospodinjske naprave za pripravo tople sanitarne vode - 1. del:
Ocenjevanje zmogljivosti priprave tople vode
Gas fired domestic appliances producing hot water - Part 1: Assessment of performance
of hot water deliveries
Gasbeheizte Geräte für die sanitäre Warmwasserbereitung für den Hausgebrauch - Teil
1: Bewertung der Leistung der Warmwasserbereitung
Appareils domestiques produisant de l'eau chaude sanitaire utilisant les combustibles
gazeux - Partie 1 : Évaluation de la performance en puisage d’eau chaude
Ta slovenski standard je istoveten z: EN 13203-1:2015
ICS:
91.140.65 Oprema za ogrevanje vode Water heating equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 13203-1
EUROPEAN STANDARD
NORME EUROPÉENNE
September 2015
EUROPÄISCHE NORM
ICS 91.140.65 Supersedes EN 13203-1:2006
English Version
Gas fired domestic appliances producing hot water - Part
1: Assessment of performance of hot water deliveries
Appareils domestiques produisant de l'eau chaude Gasbeheizte Geräte für die sanitäre
sanitaire utilisant les combustibles gazeux - Partie 1 : Warmwasserbereitung für den Hausgebrauch - Teil 1:
Évaluation de la performance en puisage d'eau chaude Bewertung der Leistung der Warmwasserbereitung
This European Standard was approved by CEN on 14 August 2015.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2015 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 13203-1:2015 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 General test conditions . 7
4.1 Reference conditions . 7
4.2 Measurement uncertainties . 7
4.3 Test conditions . 8
4.3.1 General . 8
4.3.2 Test room . 8
4.3.3 Water supply . 8
4.3.4 Steady state . 8
4.3.5 Initial adjustment of the appliance . 8
4.3.6 Initial state conditions . 9
4.3.7 Electrical supply . 9
5 Characterisation of the domestic hot water function of appliances . 9
5.1 General . 9
5.2 Characterisation according to the domestic hot water rates . 9
5.2.1 Specific rate . 9
5.2.2 Tapping capability . 10
5.2.3 Classification according to the quantity of available domestic hot water . 11
5.3 Classification according to the quality of the domestic hot water produced . 12
5.3.1 Classification procedure . 12
5.3.2 Test for classification according to the performance in delivery of domestic hot
water production . 13
6 Information . 15
7 Eco design Related Products Data . 16
7.1 Mixed water at 40 °C (V40) . 16
Annex A (informative)  Test conditions . 17
Annex B (informative)  Test rig and measurement devices . 27
B.1 General . 27
B.2 Pressure measurement . 28
B.3 Temperature measurement . 28
Annex ZA (informative) Relationship between this European Standard and the
requirements of Commission Regulation (EU) n° 814/2013 . 31
Bibliography . 32

European foreword
This document (EN 13203-1:2015) has been prepared by Technical Committee CEN/TC 109 “Central
heating boilers using gaseous fuels”, the secretariat of which is held by NEN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by March 2016, and conflicting national standards shall
be withdrawn at the latest by March 2016.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent
rights.
This document supersedes EN 13203-1:2006.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EU Directive(s).
For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this
document.
The main changes in this revision are the following:
— The title of this standard has been changed to: "Gas fired domestic appliances producing hot water
— Part 1: Assessment of performance of hot water deliveries";
— "heat input not exceeding 70 kW" was removed from the title but remains unchanged in the scope;
— "300 litres water storage" has been removed from the title and the scope is changed as following:
hot water storage capacity (if any) not exceeding 500 l;
— A new Clause 7 is added: "7 Eco design Related Products Data";
— An informative Annex ZA is added for the relationship between this European Standard and the
requirements of Commission Regulation (EU) n° 814/2013.
NOTE Useful standards are EN 26, EN 89, EN 15502-1, EN 15502-2-1 and EN 15502-2-2.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
1 Scope
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.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
Not applicable.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
control cycle
time cycle for keeping components and/or the hot storage water tank (if any) of the domestic hot water
circuit at predetermined temperature level, consists of an «ON» duration time during which the heating
of the domestic hot water (by gas energy and auxiliary energy) is operating, and an «OFF» duration time
during which no heating occurs
3.2
domestic water mean temperature
average temperature of the water delivered during the time Δt
T T⋅dt
m

∆t
Note 1 to entry: SYMBOL = T
m
3.3
domestic water test temperature
temperature of the delivered water at which the tests are conducted
3.4
storage tank
reservoir for domestic hot water
=
3.5
kitchen specific rate
domestic hot water rate corresponding to a mean temperature rise of 45 K that the appliance can
supply
Note 1 to entry: SYMBOL = D
c
Note 2 to entry: D is expressed in litre per minute (l/min)
c
3.6
minimum declared water rate
lowest water rate stated by the manufacturer maintaining a stable temperature
Note 1 to entry: SYMBOL = D
m
Note 2 to entry: Dm is expressed in litre per minute (l/min)
3.7
nominal domestic hot water heat input
value of the heat input stated by the manufacturer for the production of domestic hot water
Note 1 to entry: SYMBOL = Q
nw
Note 2 to entry: Q is expressed in kilowatt (kW)
nw
3.8
overall performance factor
numerical value used to quantify the overall performance associated with domestic hot water use,
corresponding to the sum of the products of the particular performance factors multiplied by the
weighting coefficients
Note 1 to entry: SYMBOL = F
n
F = a .f
∑ ii
i=1
3.9
particular performance factor
numerical value which quantifies each of the performance criteria listed in Table 1
Note 1 to entry: SYMBOL = f
i
3.10
specific rate
domestic hot water rate declared by the manufacturer corresponding to a mean temperature rise of
30 K that the appliance can supply in two successive delivery periods
Note 1 to entry: SYMBOL = D
Note 2 to entry: D is expressed in litre per minute (l/min)
3.11
summer mode
conditions during which the appliance supplies energy only for the production of domestic hot water
3.12
tapping capability
hot water delivery rate, declared by the manufacturer, at which water can be drawn off for a specified
time or times (5 min; 10 min; 20 min or continuous) with a predetermined temperature rise
Note 1 to entry: SYMBOL = R
Note 2 to entry: R is expressed in litre per minute (l/min)
3.13
temperature fluctuation at a constant water rate
difference between the minimum and maximum water temperatures that can occur during delivery at a
constant water rate with a constant inlet temperature
Note 1 to entry: SYMBOL = ΔT
Note 2 to entry: ΔT is expressed in Kelvin (K)
3.14
temperature fluctuation between successive deliveries
maximum domestic hot water temperature difference between successive deliveries
Note 1 to entry: SYMBOL = ΔT
Note 2 to entry: ΔT is expressed in Kelvin (K)
3.15
temperature stabilization time following a variation of the water flow rate
time taken to obtain a predetermined fluctuation, following a rapid variation of the water flow rate
Note 1 to entry: SYMBOL = t
s
Note 2 to entry: t is expressed in second (s)
s
3.16
temperature variation according to water rate
variation of the mean hot water temperature consequent upon variations of the water flow rate
Note 1 to entry: SYMBOL = ΔT
Note 2 to entry: ΔT is expressed in Kelvin (K)
3.17
waiting time
time taken to reach, at appliance outlet, 90 % of the domestic hot water temperature rise of 45 K
without subsequently falling below 34 K
Note 1 to entry: SYMBOL = t
m
Note 2 to entry: t is expressed in second (s)
m
3.18
weighting coefficient
numerical coefficient used to quantify the importance given to each particular performance factor in
connection with the use of domestic hot water
Note 1 to entry: SYMBOL = a
i
3.19
rapid response thermometer
measuring instrument with a response time such that 90 % of the final temperature rise, from 15 °C to
100 °C, is obtained within about 1 s, when the sensor is plunged into still water
4 General test conditions
4.1 Reference conditions
Unless otherwise stated, the general test conditions are as follows:
— cold water temperature: 10 °C;
— maximum average variation over the test period: ± 2 K
— cold water pressure: (2 ± 0,1) bar;
— ambient air temperature: 20 °C;
— maximum average variation over the test period ± 1 K
— maximum variation during the tests ± 2 K
— electrical supply voltage: (230 ± 2) V (single phase).
4.2 Measurement uncertainties
Except where otherwise stated in the clauses describing the tests, the uncertainties of measurements
carried out shall not be greater than the maximum uncertainties indicated below.
The standard deviations take account the various sources of uncertainty: contribution from the
instrument, repeatability, calibration, ambient conditions, etc.
— water rate: ± 1 %;
— gas rate: ± 1 %;
— time: ± 0,2 s;
— temperatures:
— ambient: ± 1 K;
— water: ± 0,5 K;
— gas: ± 0,5 K;
— mass: ± 0, 5 %;
— gas pressure: ± 1 %;
— gas calorific value: ± 1 %;
— gas density: ± 0,5 %;
— electrical energy: ± 2 %.
The stated measurement uncertainties relate to individual measurements. For measurements that
combine a number of individual measurements, smaller uncertainties on the individual measurements
may be necessary to ensure a total uncertainty within ± 2 % under the steady state conditions.
These uncertainties correspond to two standard deviations (2σ).
4.3 Test conditions
4.3.1 General
Except where otherwise stated, the appliance shall be tested under the following conditions.
4.3.2 Test room
The appliance shall be installed in a well-ventilated, draught-free room (air speed less than 0,5 m/s).
The appliance shall be protected from direct solar radiation and radiation from heat generators.
4.3.3 Water supply
For the tests:
— domestic water pressure is the static inlet pressure under dynamic conditions measured as close as
possible to the appliance;
— inlet and outlet temperatures of the domestic water shall be measured in the centre of the flow and
as close as possible to the appliance.
The inlet temperatures shall be measured immediately upstream of the water inlet connection. Except
where otherwise stated, the outlet temperatures shall be measured immediately downstream of the
outlet connection or, in the case of an appliance with spout delivery, by means of an immersed
temperature measuring device, e.g. a u-tube fitted at the outlet of a tube of the same length as the
minimum length of the spout normally supplied by the manufacturer.
The hot water temperature shall be measured with a rapid response thermometer.
"Rapid response thermometer" means a measuring instrument with a response time such that 90 % of
the final temperature rise, from 15 °C to 100 °C, is obtained within about 1 s, when the sensor is
plunged into still water.
4.3.4 Steady state
Steady state operating conditions shall be regarded as established when the appliance operates for
sufficient time to reach thermal stabilization. The steady state is reached when the water temperature
at the outlet does not vary by more than ± 0,5 K.
NOTE This condition can be reached with a gas which is different from the specified test gas, provided that
the appliance is supplied with the specified test gas at least 5 min before the requirements are verified.
4.3.5 Initial adjustment of the appliance
The appliance shall be installed in accordance with the manufacturer's instructions.
The heat input shall be adjusted to within ± 2 % of the nominal domestic hot water heat input.
The delivered water temperature at the appliance outlet is defined as follows (see Figures A.1 and A.2):
a) appliances with an adjustable temperature: the tests shall be carried out at a temperature not
greater than 65 °C, with a minimum temperature increase equal to or greater than 45 K above
water inlet temperature.
b) appliances with a fixed temperature: the tests shall be carried out at the temperature specified by
the manufacturer, with a minimum temperature increase equal to or greater than 45 K.
The same conditions of initial adjustment stated in the appliance documentation shall be used for all the
tests.
These conditions shall be included in the test report.
4.3.6 Initial state conditions
All the tests of this standard shall be conducted as follows (see Figures A.3 and A.4):
— when there is no control cycle to consider: at least one hour after the previous delivery;
— when there is a control cycle to consider : after a time corresponding to 20 % (but not exceeding
1 h) of the "OFF" time of the burner. The time is taken from the time the burner turns off in the
control cycle.
The same initial state conditions shall be used for all the tests. These conditions shall be included in the
test report.
For appliances with a central heating function, tests shall be conducted in summer mode.
4.3.7 Electrical supply
The appliance shall be supplied with the nominal voltage or a voltage included within the range of
nominal voltages stated in the installation instructions
5 Characterisation of the domestic hot water function of appliances
5.1 General
The domestic hot water function shall be characterised in two different ways:
— firstly, according to the domestic hot water specific rates, the tapping capability and the
corresponding uses (see 5.2);
— secondly, according to the quality of the domestic hot water produced (see 5.3); obtaining a
number of stars corresponding to a determined level of performance.
5.2 Characterisation according to the domestic hot water rates
5.2.1 Specific rate
5.2.1.1 Requirement
The measured value of the specific rate shall be not lower than 95 % of that stated by the appliance
documentation.
5.2.1.2 Test
The appliance shall be adjusted to deliver hot water at the rate stipulated by the installation
instructions for this test.
The pressure loss across the appliance shall not exceed 2 bar.
During the measurement of the specific rate, the minimum temperature increase shall be equal to or
greater than 30 K.
Before the test, the appliance shall be adjusted in accordance with 4.3.5. A first delivery shall be carried
out over a period of 10 min, followed by 20 min with no delivery and then by a second delivery over a
period of 10 min (see Figures A.5 and A.6).
Measurements of temperature and flow rate shall be made and recorded, at intervals not exceeding 2 s.
A plot of temperature against time is made to obtain the mean water temperature rise during each
delivery.
For each delivery the following shall be calculated by the formula:
m
∆T
i(10)
D ⋅ (1)
i
10 30
where
D is the calculated rate for each delivery; D and D are determined respectively during the
i 1 2
first and second deliveries, in litre per minute (l/min)
m is the quantity of water collected during the first or second delivery with a minimum
i(10)
temperature rise of 30 K, in
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.

Loading comments...

SIST EN 13203-1:2015 표준은 가스를 연료로 사용하는 가정용 온수기기에서 발생하는 온수의 성능 평가에 초점을 맞추고 있습니다. 이 표준은 즉시 온수를 제공하는 기기와 저장형 기기 모두에 적용되며, 최대 70 kW의 열 출력과 최대 500 리터의 온수 저장 용량을 갖춘 온수기와 조합 보일러를 포함합니다. 조합 보일러의 경우, 저장 탱크 여부에 관계없이 가정용 온수 생산이 통합되어 단일 장치로 판매됩니다. 이 표준의 강점은 온수 제공 성능에 대한 정성적 및 정량적 기준을 마련함으로써 다양한 용도에 맞는 성능을 명확하게 규정하고 있다는 점입니다. 가정용 온수기기의 성능을 평가하고 동일한 기준에 맞춰 정보를 제공하는 시스템을 설정함으로써, 소비자는 제품의 효율성과 성능을 쉽게 비교할 수 있습니다. SIST EN 13203-1:2015 표준은 가정용 온수기기 사용자가 필요한 정보를 효과적으로 전달 받을 수 있도록 돕는 점에서 매우 중요합니다. 이는 제품 선택과 에너지 소비 측면에서 소비자에게 유용한 가이드를 제공하여, 시장 내 경쟁력을 강화하는 요소로 작용합니다. 이 표준의 적용 범위와 명확한 성능 평가 기준은 가정용 온수기기에 대한 신뢰성을 높이고, 궁극적으로는 보다 안전하고 효율적인 에너지 사용을 촉진하는데 기여합니다.

EN 13203-1:2015は、家庭用の温水を生産するガス機器に関する欧州標準であり、その適用範囲は非常に明確です。この標準は、瞬間式および貯湯式のガス機器に適用され、熱入力が70 kWを超えず、最大500リットルの熱水貯蔵容量を有する機器を対象としています。また、貯湯タンクの有無にかかわらず、コンビネーションボイラーの温水生産が統合または連動されている場合も、1つのユニットとして市場に出されることが強調されています。 この標準の強みは、家庭用温水の供給性能を質的および量的に評価するための基盤を提供している点です。特定の使用目的に応じた温水の供給性能を明確に定義することで、消費者に対して信頼性の高い情報を提供し、選択肢の幅を広げる役割を果たしています。また、情報をユーザーに提示するためのシステムも整備されており、利用者が理解しやすい形で性能を把握できるよう配慮されています。 このように、EN 13203-1:2015は、家庭用ガス機器の温水供給に関連するパフォーマンスを明確化し、業界での一貫性を促進するために重要な標準であると言えます。これにより、消費者はより良い製品選択を行うことができ、信頼性の高いガス機器の導入を促進します。この標準が提供するガイドラインや指針は、ガス機器の性能向上に寄与し、持続可能なエネルギー利用を推進する上でも重要な役割を果たします。

The EN 13203-1:2015 standard is a critical document that outlines the assessment of performance for gas-fired domestic appliances producing hot water, including both instantaneous and storage water heaters, as well as combination boilers. This standard is meticulously designed for appliances with a heat input not exceeding 70 kW and hot water storage capacities not surpassing 500 liters. One of the strengths of this standard is its comprehensive approach to the evaluation of hot water delivery performance. It sets forth robust qualitative and quantitative criteria, ensuring that manufacturers consistently meet user expectations regarding domestic hot water supply. By establishing clear parameters for performance assessment, EN 13203-1:2015 aids in promoting reliability and efficiency in the operation of gas-fired appliances. Moreover, the standard provides a structured system for presenting critical information to the end user, ensuring that consumers can make informed decisions based on the performance capabilities of the appliances. Its relevance is underscored by the increasing demand for energy-efficient solutions in domestic settings, supporting both consumer needs and environmental considerations. The emphasis placed on both instantaneous and storage systems within the standard allows for a wide array of applications and versatility in usage contexts, making it a valuable reference for manufacturers, installers, and consumers alike. Overall, EN 13203-1:2015 solidifies itself as an essential standard in the landscape of domestic hot water solutions, guiding the development of high-performance, gas-fired appliances that meet modern energy standards.