Heating boilers - Electrical power consumption for heat generators - System boundaries - Measurements

This European Standard applies to heating boilers (e.g. with forced-draught burners (unit)) and burners equipped with a fan including all components specified by the manufacturer to be required for the designed boiler operation.
This European Standard also applies to heating boilers sold without burners.
This European Standard covers the required definitions, the system boundaries, the measurements for the determination of the electrical power consumption and, where applicable, the water side resistance in order to establish the electric auxiliary energy for:
   Oil-fired forced-draught burners in accordance with EN 267;
   Automatic forced-draught burners for gaseous fuels in accordance with EN 676;
   Flued oil stoves with vaporizing burners in accordance with EN 1;
   Heating boilers sold without burners for:
   Oil-fired forced-draught burners in accordance with EN 303-1 [6], EN 303-2 [7] and EN 304;
   Condensing boilers for liquid fuels in accordance with EN 15034;
   Room sealed boilers for fuel oil in accordance with EN 15035;
   Heating boilers - Heating boilers with forced-draught burners - Nominal heat output not exceeding 10 MW and maximum operating temperature of 110 °C in accordance with EN 14394;
   Pellet burners for small heating boilers in accordance with EN 15270.
NOTE   All measurements for boilers are carried out in the heating mode only. For hot water production this mode is also relevant.

Heizkessel - Elektrische Leistungsaufnahme für Wärmeerzeuger - Systemgrenzen - Messungen

Diese Europäische Norm gilt für Heizkessel [z. B. mit Gebläsebrenner (Einheit)] und Brenner, die mit einem Gebläse ausgestattet sind einschließlich sämtlicher Bauteile, die vom Hersteller für den vorgesehenen Betrieb des Kessels festgelegt sind.
Diese Europäische Norm gilt auch für Heizkessel, die ohne Brenner verkauft werden.
Diese Europäische Norm behandelt die erforderlichen Definitionen, die Systemgrenzen, die Messungen zur Bestim¬mung der elektrischen Leistungsaufnahme und, wo zutreffend, den wasserseitigen Widerstand zur Bereit¬stellung der elektrischen Hilfsenergie für:
   ölbefeuerte Gebläsebrenner nach EN 267;
   automatische Brenner mit Gebläse für gasförmige Brennstoffe nach EN 676;
   Ölheizöfen mit Verdampfungsbrennern nach EN 1;
   Heizkessel, die ohne Brenner verkauft werden, für:
   ölbefeuerte Gebläsebrenner nach EN 303-1 [6], EN 303-2 [7] und EN 304;
   Brennwertkessel für flüssige Brennstoffe nach EN 15034;
   von der Raumluft unabhängige Kessel für Heizöl nach EN 15035;
   Heizkessel  Heizkessel mit Gebläsebrenner  Nennwärmeleistung nicht größer als 10 MW und mit einer maximalen Betriebstemperatur von 110 °C nach EN 14394;
   Pelletbrenner für kleine Heizkessel nach EN 15270.
ANMERKUNG   Sämtliche Messungen an Kesseln werden ausschließlich in der Heizbetriebsart durchgeführt. Diese Betriebsart ist auch bei der Warmwasserbereitung relevant.

Chaudières de chauffage - Puissance électrique des générateurs de chaleur - Limites du système - Mesurages

La présente Norme européenne s’applique aux chaudières de chauffage (par exemple avec brûleurs à air
soufflé (unités)) et aux brûleurs à air soufflé, y compris tous les composants que le fabricant estime
nécessaires pour le fonctionnement prévu de la chaudière.
La présente Norme européenne s’applique également aux chaudières de chauffage livrées sans brûleur.
La présente Norme européenne couvre les définitions, les limites du système, les mesurages permettant de
déterminer la puissance électrique et, le cas échéant, les pertes de charge du circuit hydraulique, afin d’établir
l’énergie électrique auxiliaire pour :
- brûleurs à fioul à air soufflé selon l’EN 267 ;
- brûleurs automatiques à air soufflé pour combustibles gazeux selon l’EN 676 ;
- poêles à combustible liquide avec brûleurs à vaporisation selon l’EN 1 ;
- chaudières de chauffage livrées sans brûleur pour :
- brûleurs à fioul à air soufflé selon l’EN 303-1 [6], l’EN 303-2 [7] et l’EN 304 ;
- chaudières de chauffage fioul à condensation selon l’EN 15034 ;
- chaudières de chauffage au fioul étanches selon l’EN 15035 ;
- chaudières de chauffage - chaudières de chauffage avec brûleurs à air soufflé - puissance calorifique
nominale n’excédant pas 10 MW et température maximale de service de 110 °C, conformément à
l’EN 14394 ;
- brûleurs à granulés pour petites chaudières de chauffage selon l’EN 15270.
NOTE Tous les mesurages sur les chaudières sont effectués en mode chauffage uniquement. Ce mode convient
également pour la production d’eau chaude.

Kotli za gretje - Poraba elektrike v generatorjih toplote - Sistemske meje - Meritve

General Information

Status
Published
Publication Date
01-Apr-2008
Withdrawal Date
30-Oct-2008
ICS
91.140.10 - Central heating systems
Technical Committee
CEN/TC 57 - Central heating boilers
Drafting Committee
CEN/TC 57/WG 9 - Electrical power consumption for heat generators
Current Stage
9060 - Closure of 2 Year Review Enquiry - Review Enquiry
Start Date
03-Mar-2024
Completion Date
03-Mar-2024
Ref Project
SIST EN 15456:2008 - Heating boilers - Electrical power consumption for heat generators - System boundaries - Measurements

Overview

EN 15456:2008 (CEN) defines how to measure and report the electrical power consumption of heating boilers and associated burners. It sets the system boundaries, required definitions, measurement modes and procedures to determine auxiliary electrical energy (Paux) and, where relevant, the water‑side resistance used in heat generator testing. The standard applies to boilers sold with or without burners (including forced‑draught and pellet burners) and to burners equipped with fans as required for normal boiler operation.

Key topics and requirements

  • Scope: Applies to oil‑ and gas‑fired forced‑draught burners, pellet burners, flued oil stoves and heating boilers (including condensing and room‑sealed types) as listed in the standard.
  • System boundaries: Measurement boundary starts at the manual shut‑off devices for water/fuel and ends at the flue outlet. Components required for designed operation (fuel valves, fuel pump, oil pre‑heater, combustion air fan, control units, integrated circulator/pump) are included in measurements.
  • Measurement modes:
    • Full load (100%), part load (30%) and stand‑by operation are mandatory measurement points.
    • Tests are performed in heating mode only; hot‑water mode is also relevant when applicable.
    • Temperature spread for tests: 20 ± 2 K between flow and return at nominal heat input.
  • Water‑side resistance: Determination of pressure loss across the boiler (flow to return) at nominal conditions is required; procedures reference EN 304 and an informative Annex B for alternative determination.
  • Reporting: Test report and documentation format are specified (including Annex A normative test report content).

Practical applications and users

Who uses EN 15456:2008:

  • Boiler and burner manufacturers - to quantify and declare auxiliary electrical consumption and to design compliant products.
  • Test laboratories and certification bodies - for type testing and issuing performance data.
  • HVAC engineers and system designers - to size pumps/fans and to assess auxiliary energy impacts on system efficiency.
  • Energy modellers and standards writers - to provide input data for system energy calculations (notably for prEN 15316‑4‑1 referenced in the standard).
  • Regulators and procurement teams - when specifying or comparing products on overall energy performance including electric auxiliaries.

Practical benefits:

  • Ensures consistent, repeatable measurement of auxiliary electricity across product types.
  • Enables accurate calculation of total auxiliary energy for building‑level energy assessments.
  • Clarifies what components must be included in measurements, avoiding inconsistent test scopes.

Related standards

  • EN 267, EN 676, EN 304, EN 15034, EN 15035, EN 14394, EN 15270, EN 1
  • prEN 15316‑4‑1 (calculation of total power consumption)

Frequently Asked Questions

EN 15456:2008 is a standard published by the European Committee for Standardization (CEN). Its full title is "Heating boilers - Electrical power consumption for heat generators - System boundaries - Measurements". This standard covers: This European Standard applies to heating boilers (e.g. with forced-draught burners (unit)) and burners equipped with a fan including all components specified by the manufacturer to be required for the designed boiler operation. This European Standard also applies to heating boilers sold without burners. This European Standard covers the required definitions, the system boundaries, the measurements for the determination of the electrical power consumption and, where applicable, the water side resistance in order to establish the electric auxiliary energy for:  Oil-fired forced-draught burners in accordance with EN 267;  Automatic forced-draught burners for gaseous fuels in accordance with EN 676;  Flued oil stoves with vaporizing burners in accordance with EN 1;  Heating boilers sold without burners for:  Oil-fired forced-draught burners in accordance with EN 303-1 [6], EN 303-2 [7] and EN 304;  Condensing boilers for liquid fuels in accordance with EN 15034;  Room sealed boilers for fuel oil in accordance with EN 15035;  Heating boilers - Heating boilers with forced-draught burners - Nominal heat output not exceeding 10 MW and maximum operating temperature of 110 °C in accordance with EN 14394;  Pellet burners for small heating boilers in accordance with EN 15270. NOTE All measurements for boilers are carried out in the heating mode only. For hot water production this mode is also relevant.

This European Standard applies to heating boilers (e.g. with forced-draught burners (unit)) and burners equipped with a fan including all components specified by the manufacturer to be required for the designed boiler operation. This European Standard also applies to heating boilers sold without burners. This European Standard covers the required definitions, the system boundaries, the measurements for the determination of the electrical power consumption and, where applicable, the water side resistance in order to establish the electric auxiliary energy for:  Oil-fired forced-draught burners in accordance with EN 267;  Automatic forced-draught burners for gaseous fuels in accordance with EN 676;  Flued oil stoves with vaporizing burners in accordance with EN 1;  Heating boilers sold without burners for:  Oil-fired forced-draught burners in accordance with EN 303-1 [6], EN 303-2 [7] and EN 304;  Condensing boilers for liquid fuels in accordance with EN 15034;  Room sealed boilers for fuel oil in accordance with EN 15035;  Heating boilers - Heating boilers with forced-draught burners - Nominal heat output not exceeding 10 MW and maximum operating temperature of 110 °C in accordance with EN 14394;  Pellet burners for small heating boilers in accordance with EN 15270. NOTE All measurements for boilers are carried out in the heating mode only. For hot water production this mode is also relevant.

EN 15456:2008 is classified under the following ICS (International Classification for Standards) categories: 91.140.10 - Central heating systems. The ICS classification helps identify the subject area and facilitates finding related standards.

You can purchase EN 15456:2008 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)


2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Kotli za gretje - Poraba elektrike v generatorjih toplote - Sistemske meje - MeritveHeizkessel - Elektrische Leistungsaufnahme für Wärmeerzeuger - Systemgrenzen - MessungenChaudieres de chauffage - Consommation de puissance électrique des générateurs de chaleur - Limites du systeme - MesuragesHeating boilers - Electrical power consumption for heat generators - System boundaries - Measurements91.140.10Sistemi centralnega ogrevanjaCentral heating systems27.060.30Grelniki vode in prenosniki toploteBoilers and heat exchangersICS:Ta slovenski standard je istoveten z:EN 15456:2008SIST EN 15456:2008en,fr,de01-november-2008SIST EN 15456:2008SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 15456April 2008ICS 91.140.10 English VersionHeating boilers - Electrical power consumption for heatgenerators - System boundaries - MeasurementsChaudières de chauffage - Puissance électrique desgénérateurs de chaleur - Limites du système - MesuragesHeizkessel - Elektrische Leistungsaufnahme fürWärmeerzeuger - Systemgrenzen - MessungenThis European Standard was approved by CEN on 29 February 2008.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN 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 translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2008 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 15456:2008: ESIST EN 15456:2008

Test report.12 A.1 Summary.12 A.2 Testing the electrical power consumption Paux.13 Annex B (informative)
Determination of the water side resistance.15 B.1 Operating conditions.15 B.1.1 General.15 B.1.2 Boilers without integrated pump.15 B.1.3 Boilers with integrated pump.16 B.1.4 Determination of operating conditions of boilers with integrated pump.18 Bibliography.19
1 Scope This European Standard applies to heating boilers (e.g. with forced-draught burners (unit)) and burners equipped with a fan including all components specified by the manufacturer to be required for the designed boiler operation. This European Standard also applies to heating boilers sold without burners. This European Standard covers the required definitions, the system boundaries, the measurements for the determination of the electrical power consumption and, where applicable, the water side resistance in order to establish the electric auxiliary energy for:  Oil-fired forced-draught burners in accordance with EN 267;  Automatic forced-draught burners for gaseous fuels in accordance with EN 676;  Flued oil stoves with vaporizing burners in accordance with EN 1;  Heating boilers sold without burners for:  Oil-fired forced-draught burners in accordance with EN 303-1 [6], EN 303-2 [7] and EN 304;
 Condensing boilers for liquid fuels in accordance with EN 15034;  Room sealed boilers for fuel oil in accordance with EN 15035;  Heating boilers - Heating boilers with forced-draught burners - Nominal heat output not exceeding 10 MW and maximum operating temperature of 110 °C in accordance with EN 14394;  Pellet burners for small heating boilers in accordance with EN 15270. NOTE All measurements for boilers are carried out in the heating mode only. For hot water production this mode is also relevant. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 1, Flued oil stoves with vaporising burners EN 267, Forced draught oil burners — Definitions, requirements, testing, marking EN 304:1992, Heating boilers — Test code for heating boilers for atomizing oil burners EN 676, Automatic forced draught burners for gaseous fuels EN 14394, Heating boilers — Heating boilers with forced draught burners — Nominal heat output not exceeding 10 MW and maximum operating temperature of 110 °C EN 15034, Heating boilers — Condensing heating boilers for fuel oil EN 15035, Heating boilers — Special requirements for oil fired room sealed units up to 70 kW SIST EN 15456:2008

15 °C and 1 013,25 mbar, unless otherwise stated 3.2 fuel mass flow
Bm& fuel mass which is consumed during each unit of time by the boiler in continuous operation
NOTE Fuel mass flow is expressed in cubic metre per hour or kilogram per hour. 3.3 fuel volumetric flow
BV& volume of the fuel supplied to the boiler during continuous operation for each unit of time NOTE Fuel volumetric flow is expressed in cubic metre per hour. 3.4 electrical power consumption
Paux 3.4.1
electrical power consumption for heat generation
Paux,gen electric energy consumed by the system components (e.g. pump, fan, valves and control unit) required for the heat generator‘s designed operation:  at full load (100 %) Paux 100,
 at part load (30 %) Paux 30 and  at stand-by operation Paux sb.
NOTE Electrical power consumption for heat generation is expressed in watts. 3.4.2
electrical power consumption for other use Paux, dis
electric energy consumed by the system components which are not required for the heat generator‘s designed operation, e.g. heat distribution pump, valves for heat distribution NOTE Electrical power consumption for other use is expressed in watts. 3.5 draught pressure differential between the static air pressure in the place of installation and the static pressure of the exhaust gases, as measured in the exhaust gas measuring section, which is required for correct operation of the boiler in the test room SIST EN 15456:2008

PN maximal value of heat input for the heating mode declared by the manufacturer NOTE Nominal heat input is expressed in kilowatts. 3.8 nominal heat output
-N maximal value of heat output declared by the manufacturer NOTE Nominal heat output is expressed in kilowatts. 3.9 test room
room in which the heat generator has been installed during the measurement in which the ambient parameters corresponding to the reference conditions are found 3.10 residual pump head hR available pump head after deduction of the hydraulic resistance of the boiler
NOTE Residual pump heat is expressed in metre. 3.11 stand-by operation
operating mode without any heat demand, the system immediately starts up in the required mode as soon as there will be a heat demand
3.12 temperature spread
temperature difference between flow and return connection of the heat generator 3.13 unit assembly of a boiler and a forced-draught burner, offered as a factory-assembled unit
P product of the volumetric flow or mass flow and the net or gross calorific value of the fuel referred to the same reference conditions: iBHiN,HVP⋅=&, or sBHsN,HVP⋅=& (1) or
iBHiN,HmP⋅=&, or sBHsN,HmP⋅=& (2) NOTE Heat input is expressed in kilowatts. 3.15 water side resista
...

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EN 15456:2008は、熱生成機器における電力消費に関する重要な欧州標準であり、その適用範囲は広範囲にわたります。この標準は、強制送風バーナーを持つ暖房ボイラーやファン付きバーナーを含むすべてのコンポーネントをカバーし、製造者が指定した設計されたボイラーの運転に必要な要素を網羅しています。また、バーナーなしで販売される暖房ボイラーにも適用されるため、非常に包括的です。 この標準の強みは、電力消費の測定方法を明確に定義し、システムの境界を設定することにあります。具体的には、油-fired強制送風バーナー、ガス用自動強制送風バーナー、蒸発バーナーを使用しているフルード効果油ストーブなど、複数のバーナー形式における電気補助エネルギーの確立に必要な測定が行われます。特に、標準はEN 267、EN 676などの他の関連基準に準拠したものも含まれており、業界全体での一貫性を確保しています。 さらに、EN 15456:2008は液体燃料用の凝縮ボイラーや、最大出力が10MWで110℃の最大動作温度を持つ暖房ボイラーなどの新しい技術に対しても適応しており、その柔軟性は現在および将来の市場ニーズに応じた重要な特徴です。また、ボイラーに関するすべての測定が加熱モードのみで行われるという明確な指針を提供しているため、実用的な理解と応用が可能です。 この標準は、暖房ボイラーに関連する電力消費の測定において信頼性を提供するだけでなく、技術の進歩および環境への配慮にも寄与することから、今後のエネルギー効率改善のための基盤としての役割を果たします。全体として、EN 15456:2008は、熱生成機器の電力消費に関する十分な情報とガイダンスを提供するため、業界での重要性を持っています。

The standard EN 15456:2008 addresses the electrical power consumption of heating boilers and includes comprehensive guidelines for measuring this consumption within specified system boundaries. Its scope is notably extensive, encompassing a variety of heating systems, including forced-draught burners, flued oil stoves, and condensing boilers, whether sold with or without burners. This inclusivity ensures that manufacturers and users of different types of heating solutions can adhere to the established electrical power consumption benchmarks. One of the strengths of EN 15456:2008 is its detailed approach to defining the system boundaries necessary for accurate measurements. By clarifying the components and factors that influence electrical power consumption specifically for heating boilers, it aids in uniformity across the industry. This is particularly beneficial for compliance and regulatory purposes, as consistent methodologies facilitate easier comparisons and assessments of energy efficiency. Moreover, the standard emphasizes the need for measurements to be conducted primarily in heating mode, which is essential for determining the actual performance of heating boilers during their intended use. The focus on heating mode provides relevant data that can be used by manufacturers to optimize efficiency and by users for making informed decisions about their heating systems. The relevance of EN 15456:2008 extends beyond merely regulatory compliance; it supports the advancement of energy efficiency in heating technologies, a critical concern in today's climate-conscious market. By providing clear guidelines on electrical power consumption, the standard ultimately encourages innovation in boiler design and promotes the development of more sustainable heating solutions, aligning with broader environmental goals. In conclusion, EN 15456:2008 stands as a pivotal standard in the landscape of heating boilers, driving both accountability and efficiency in electrical power consumption measurement. Its comprehensive scope and robust methodological framework make it a vital reference point for stakeholders in the heating sector.

EN 15456:2008 표준은 난방 보일러의 전기 소비 측정을 명확하게 규정하고 있으며, 보일러 시스템의 경계를 정의하는 데 중점을 두고 있습니다. 이 표준의 범위는 강제 연료 버너가 장착된 보일러뿐만 아니라, 버너 없이 판매되는 난방 보일러에까지 확장됩니다. 따라서 다양한 이형의 난방 기기들에 대한 전기 소비량을 비교하고 효율성을 평가하는 데 필수적인 기준을 제공합니다. 이 표준의 강점 중 하나는 전기 소비 측정을 위한 구체적인 정의와 시스템 경계를 제시함으로써, 제조사들이 설계된 보일러 작동에 필수적인 모든 구성 요소를 명확히 할 수 있다는 점입니다. 이로 인해 소비자는 제품의 성능을 신뢰할 수 있게 되며, 에너지 효율 관련 규정을 준수하는 데 도움이 됩니다. 또한 EN 15456:2008은 다양한 연료 형태를 아우르며, 특정 기준에 따라 오일 및 가스 연료를 사용하는 자동 강제 연료 버너에 대한 전기 소비 분석을 가능하게 합니다. 이러한 포괄적인 접근 방식은 난방 기기의 에너지 효율성을 향상시키는 데 중요한 역할을 하며, 다양한 난방 기기가 시장에서 공정하게 경쟁할 수 있는 기반을 마련합니다. 이 표준은 난방 보일러의 전기 소비에 대한 신뢰할 수 있는 데이터를 제공함으로써, 에너지 관리와 지속 가능한 개발에 기여하는 점에서 그 관련성이 크다고 할 수 있습니다. 특히, 소비자와 제조업체 간의 정보 비대칭을 해소하는 데 일조하며, 난방 시스템의 에너지 효율성을 높이기 위한 유용한 가이드라인으로 기능합니다.