EN 621:1998

EN 621:1998 is a standard published by the European Committee for Standardization (CEN). Its full title is "Non-domestic gas-fired forced convection air heaters for space heating not exceeding a net heat input of 300 kW, without a fan to assist transportation of combustion air and/or combustion products". This standard covers: This European Standard specifies the requirements and test methods for the safety and efficiency of non-domestic gas-fired air heaters not exceeding a net heat input of 300 kW with (an) atmospheric burner(s) and without a fan to assist the transportation of combustion air and/or flue gases, hereafter referred to as "appliances". This European Standard applies to Type B11, C11 and C31 appliances intended for use in other than single unit residential dwellings. Provision of the heated air may be by means of ducting or may be directly into the heated space. This standard does not apply to: ð appliances intended for use in a single unit residential dwelling; ð appliances of the condensing type; ð appliances for outdoor installation; ð dual purpose air conditioning appliances (heating and cooling); ð appliances where the air is heated by an intermediate fluid; ð appliances with forced draught burners; ð appliances fitted with a manual or automatic means of adjusting the combustion air supply or the combustion products evacuation (including flue dampers); ð portable or transportable forced convection appliances; ð appliances having multiple heating units with a single draught diverter; ð appliances fitted with more than one flue outlet. This European Standard is applicable to appliances which are intended to be type tested. NOTE: Requirements for appliances which are not type tested would need to be subject to further consideration.

This European Standard specifies the requirements and test methods for the safety and efficiency of non-domestic gas-fired air heaters not exceeding a net heat input of 300 kW with (an) atmospheric burner(s) and without a fan to assist the transportation of combustion air and/or flue gases, hereafter referred to as "appliances". This European Standard applies to Type B11, C11 and C31 appliances intended for use in other than single unit residential dwellings. Provision of the heated air may be by means of ducting or may be directly into the heated space. This standard does not apply to: ð appliances intended for use in a single unit residential dwelling; ð appliances of the condensing type; ð appliances for outdoor installation; ð dual purpose air conditioning appliances (heating and cooling); ð appliances where the air is heated by an intermediate fluid; ð appliances with forced draught burners; ð appliances fitted with a manual or automatic means of adjusting the combustion air supply or the combustion products evacuation (including flue dampers); ð portable or transportable forced convection appliances; ð appliances having multiple heating units with a single draught diverter; ð appliances fitted with more than one flue outlet. This European Standard is applicable to appliances which are intended to be type tested. NOTE: Requirements for appliances which are not type tested would need to be subject to further consideration.

EN 621:1998 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 621:1998 has the following relationships with other standards: It is inter standard links to EN 621:2009, EN 621:1998/A1:2001. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

EN 621:1998 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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