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  • Abstract:
    This European Standard is applicable to boilers used for central heating in accordance with EN 303-1:2017 up to a nominal heat output of 1000 kW and EN 303-4 up to a nominal heat output of 70 kW with forced draught burners in accordance with EN 267 that are designed for operating with liquid fuels. The performance requirements of this standard apply to type testing to heating boilers (standard, low temperature and condensing boilers) which are tested on a test rig in accordance with the test code given in EN 304. This standard applies also to room sealed boilers as defined in EN 15035 regarding efficiency and emissions. This standard can also be used as the basis for evaluation of boiler-/burner units.
  • Document number:
    DIN EN 303-2
  • Issuing date:
    2017-11-01
  • Document type:
    Norm
  • Title:
    Heating boilers - Part 2: Heating boilers with forced draught burners - Special requirements for boilers with atomizing oil burners; German version EN 303-2:2017
  • Replaces:
    DIN EN 303-2(2003-12); DIN EN 303-2(2016-07); DIN EN 15034(2007-01)
  • Author:
    Heating and Ventilation Technology Standards Committee
  • Search term:
    Aeration; Air-blast burners; Approval laboratories; Atomizing burners; Atomizing oil burners; Blackening index; Boiler efficiency; Boiler member; Boilers; Burners; Calorific value; Calorific value vessels; Cast materials; Cast-iron; Central heating; Cleaning; Cleaning equipment; Coarse; Components; Condensates; Condensation water; Construction requirements; Definitions; Delivery pressure; Density; Design; Effective heating surface; Efficiency; Emission; Exhaust gases; Fans; Fire risks; Fuels; Furnace; Heat; Heat generators; Heating engineering; Heating equipment; Heating gases; Heating installations; Heating technics; Hydrocarbons; Information; Installations; Limits (mathematics); Liquid; Liquid fuel appliances; Liquid fuels; Low pressure; Low temperatures; Low-temperature boilers; Marking; Materials; Mechanical hazards; Nominal thermal output; Oil burners; Oils; Operational instructions; Qualification tests; Registration; Resistors; Serviceable life; Specification (approval); Steels; Structural systems; Tanks; Temperature; Test duration; Testing; Thermal efficiency; Thermal environment systems; Thermal insulation; Thermal properties; Thermal test; Thermal testing; Values; Vessels; Water heaters
  • Application areas:
    03.32 Industrieöfen, Heizkessel
  • Hazards:
    AB Terminologische Festlegungen in Normen mit Arbeitsschutzbezug; AC Mess- und Prüfverfahren für die Ermittlung von Belastungen und Gefährdungen; FA Brand- und Explosionsgefährdungen im Allgemeinen; FB Brandgefährdungen; GL Kontakt mit heißen oder kalten Medien (Oberflächen, Umgebungen)
  • ICS:
    91.140.10 Central heating systems
  • Price:
    86,90 EUR
  • Cross references:
    EN 267+A1 (2011-08){historisch}<S>; EN 303-1 (2017-09)<S>; EN 303-4 (1999-01)<S>; FprEN 304 (2017-04){historisch}<S>; EN 15035 (2006-12)<S>; EN 15036-1 (2006-09)<S>; EN 15316-4-1 (2017-05)<S>; EN 15456 (2008-04); EUV 813/2013 (2013-08-02); EN 303-6 (2019-08); EN 15502-1 (2021-11)
  • Cited in:
    DIN 4759 (2018-04)<GLEITEND>; DIN/TS 18599-12 (2021-04)<GLEITEND>; DIN/TS 18599-13 (2020-10)<GLEITEND>; DIN EN 50165 (2001-08)<GLEITEND>; STLB-Bau LB 040 DVD (2022-04)<STARR>; STLB-BauZ LB 680 (2018-07); STLB-BauZ LB 680 CD-ROM<STARR>; VDI 4207 Blatt 1 (2018-02)<GLEITEND>
  • Identical with:
    EN 303-2(2017-08)<IDT>
  • Update flag:
    Unchanged