EN 677:1998

EN 677:1998 is a standard published by the European Committee for Standardization (CEN). Its full title is "Gas-fired central heating boilers - Specific requirements for condensing boilers with a nominal heat input not exceeding 70 kW". This standard covers: 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.

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.

EN 677:1998 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.

EN 677:1998 has the following relationships with other standards: It is inter standard links to EN 15502-2-2:2014, EN 483:1999, EN 15502-2-2:2024, EN 437:2021. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

EN 677:1998 is associated with the following European legislation: EU Directives/Regulations: 2009/142/EC, 90/396/EEC, 92/42/EEC; Standardization Mandates: M/066, 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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