Specification for dedicated liquefied petroleum gas appliances - Flueless non-domestic space heaters not exceeding 10 kW

This European Standard defines, for the purpose of type examination, the requirements, the test methods and the marking of non-domestic flueless space heaters (including greenhouse heaters and diffusive catalytic combustion heaters), having a nominal heat input not exceeding 10 kW  (Hs) burning 3rd family gases at nominal operating pressure not exceeding 50 mbar,  referred to in the body of the text as 'appliances'.

Festlegungen für Flüssiggasgeräte - Abzuglose Gewerberaumheizgeräte bis zur 10 kW

Diese Europäische Norm legt zum Zwecke der Baumusterprüfung die Anforderungen, Prüfmethoden und Kennzeichnung abzugloser Gewerberaumheizgeräte (einschließlich Heizgeräten mit katalytischer Diffusionsverbrennung und Heizgeräten für Gewächshäuser) fest, die 10 kW (Hs) zugeführter Nennwärmebelastung nicht überschreiten und die Gase der 3. Familie unter einem Druck von nicht mehr als 50 mbar verbrennen. Diese Heizgeräte werden im Text als 'Geräté bezeichnet.

Spécifications pour les appareils fonctionnant exclusivement aux gaz de pétrole liquéfiés - Appareils de chauffage non domestiques non raccordés avec un débit calorifique ne dépassant pas 10 kW

Cette norme européenne définit, pour les besoins de l'examen de type, les prescriptions, les techniques d'essais et le marquage des appareils non domestiques de chauffage, non raccordés à un conduit d'évacuation des produits de la combustion (y compris les appareils de chauffage de serre et les appareils de chauffage à combustion catalytique diffusive), avec un débit calorifique nominal inférieur à 10 kW (Hs) alimentés par un gaz de la 3ème famille, à une pression nominale ne dépassant pas 50 mbar, désignés dans le texte par "appareils".

Specifikacije za plinske aparate na utekočinjeni naftni plin - Plinski grelniki brez priključka na dimnik do vključno 10 kW za ogrevanje nestanovanjskih prostorov

General Information

Status
Published
Publication Date
21-Sep-1999
Withdrawal Date
30-Mar-2000
ICS
97.100.20 - Gas heaters
Technical Committee
CEN/TC 181 - Dedicated liquified petroleum gas appliances
Drafting Committee
CEN/TC 181/WG 1 - Flueless space heaters
Current Stage
9093 - Decision to confirm - Review Enquiry
Start Date
13-Oct-2020
Completion Date
23-Sep-2025
Directive
2009/142/EC - DIRECTIVE 2009/142/EC OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 30 November 2009 relating to appliances burning gaseous fuels
90/396/EEC - Appliances burning gaseous fuels
Mandate
M/BC/CEN/89/6 - Standardization request to CEN concerning appliances burning gaseous fuels
Ref Project
SIST EN 461:2001 - Specification for dedicated liquefied petroleum gas appliances - Flueless non-domestic space heaters not exceeding 10 kW

Relations

Amended By
EN 461:1999/A1:2004 - Specification for dedicated liquefied petroleum gas appliances - Flueless non-domestic space heaters not exceeding 10 kW
Effective Date
22-Dec-2008

Overview - EN 461:1999 (Specification for dedicated LPG appliances)

EN 461:1999 is a CEN European Standard that defines the requirements, test methods and marking rules for flueless non-domestic space heaters fueled by liquefied petroleum gas (LPG). The standard applies to appliances (including greenhouse heaters and diffusive catalytic combustion heaters) with a nominal heat input not exceeding 10 kW (Hs) and designed to burn 3rd family gases at a nominal operating pressure up to 50 mbar. Its purpose is to support type examination and ensure consistent safety, performance and identification of small non-domestic LPG heaters.

Key topics and requirements

  • Scope and applicability: Limits to non-domestic, flueless LPG space heaters with nominal input ≤ 10 kW and operating pressure ≤ 50 mbar.
  • Type examination: Criteria used for certifying an appliance design prior to production and market placement.
  • Test methods: Prescribed procedures for verifying combustion, safety devices, performance and behaviour under specified conditions (as required for type approval).
  • Marking and identification: Requirements for labels and markings that must accompany the appliance to ensure traceability and correct use.
  • Appliance categories covered: Includes greenhouse heaters and diffusive catalytic combustion heaters that operate without a flue.
  • Fuel family and pressure: Specifically targets appliances burning 3rd family gases at nominal pressures not exceeding 50 mbar.

Practical applications

  • Product design and R&D: Manufacturers use EN 461:1999 to design compliant flueless LPG space heaters for commercial and agricultural settings.
  • Type approval and conformity assessment: Test laboratories and certification bodies apply the standard’s test methods during type examination.
  • Procurement and specification: Specifiers and buyers (e.g., greenhouse operators, workshops, small commercial spaces) reference the standard when selecting safe, compliant LPG heaters.
  • Installation and compliance checks: Authorities and safety inspectors use the standard to assess whether a non-domestic heater meets regulatory expectations for marking, performance and safety.

Who should use this standard

  • LPG appliance manufacturers and designers
  • Test laboratories and conformity assessment bodies
  • Product certification organizations
  • Specifiers, purchasers and safety regulators in commercial, agricultural and industrial environments

Related standards (categories)

While EN 461:1999 focuses on flueless non-domestic LPG heaters ≤ 10 kW, related CEN and national standards typically cover:

  • Gas appliance safety and construction
  • Combustion and emissions testing
  • Installation, ventilation and indoor air-quality requirements

Keywords: EN 461:1999, flueless non-domestic space heaters, liquefied petroleum gas, LPG heaters, 10 kW, type examination, test methods, greenhouse heaters, catalytic combustion heaters.

Frequently Asked Questions

EN 461:1999 is a standard published by the European Committee for Standardization (CEN). Its full title is "Specification for dedicated liquefied petroleum gas appliances - Flueless non-domestic space heaters not exceeding 10 kW". This standard covers: This European Standard defines, for the purpose of type examination, the requirements, the test methods and the marking of non-domestic flueless space heaters (including greenhouse heaters and diffusive catalytic combustion heaters), having a nominal heat input not exceeding 10 kW (Hs) burning 3rd family gases at nominal operating pressure not exceeding 50 mbar, referred to in the body of the text as 'appliances'.

This European Standard defines, for the purpose of type examination, the requirements, the test methods and the marking of non-domestic flueless space heaters (including greenhouse heaters and diffusive catalytic combustion heaters), having a nominal heat input not exceeding 10 kW (Hs) burning 3rd family gases at nominal operating pressure not exceeding 50 mbar, referred to in the body of the text as 'appliances'.

EN 461:1999 is classified under the following ICS (International Classification for Standards) categories: 97.100.20 - Gas heaters. The ICS classification helps identify the subject area and facilitates finding related standards.

EN 461:1999 has the following relationships with other standards: It is inter standard links to EN 461:1999/A1:2004. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

EN 461:1999 is associated with the following European legislation: EU Directives/Regulations: 2009/142/EC, 90/396/EEC; Standardization Mandates: M/BC/CEN/89/6. 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.

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Standards Content (Sample)


SLOVENSKI STANDARD
01-februar-2001
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Specification for dedicated liquefied petroleum gas appliances - Flueless non-domestic
space heaters not exceeding 10 kW
Festlegungen für Flüssiggasgeräte - Abzuglose Gewerberaumheizgeräte bis zur 10 kW
Spécification
...

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The article discusses EN 461:1999, a European Standard that specifies the requirements, testing methods, and marking for non-domestic flueless space heaters. These heaters, such as greenhouse heaters and diffusive catalytic combustion heaters, can have a maximum heat input of 10 kW (Hs) and burn 3rd family gases at a nominal operating pressure of up to 50 mbar. The appliances are referred to as "appliances" in the article.

기사 제목: EN 461:1999 - 전용액화석유가스 가전제품에 대한 사양 - 10 kW 이하의 범용이 아닌 플루리스 비주거 공간 난방기 기사 내용: 이 유럽 표준은 타입 검사를 위해, 10 kW 이하의 명목 열 입력(Hs)을 가진 비주거 플루리스 공간 난방기(온실 난방기와 확산성 촉매 연소 난방기를 포함)에 대한 요구 사항, 시험 방법 및 표시를 정의한다. 이러한 기기들은 제품 본체에서 "제품"이라고 나와있다.

記事のタイトル：EN 461:1999 - 専用の液化石油ガス機器の仕様 - 10 kWを超えない非住宅用フルーレス空気燃焼器 記事の内容：このヨーロッパ標準では、タイプ検査のために、非住宅用フルーレス空気燃焼器（温室暖房器具や拡散型触媒燃焼器を含む）の要件、試験方法、および表示を定義しています。これらの機器は、本文中で「機器」と呼ばれています。