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BS EN 303-3:1999

Current
Current

The latest, up-to-date edition.

Heating boilers Gas-fired central heating boilers. Assembly comprising a boiler body and a forced draught burner
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

07-31-2006

This European Standard specifies the requirements and test methods for the construction, the safety and the rational energy usage of an assembly made up of a boiler body complying with EN 303-11) and a forced draught gas burner complying with EN 676, using combustible gases, hereafter referred to as a “boiler??.

#This European Standard applies to standard boilers and low-temperature boilers with a nominal heat output not exceeding 1 000 kW and with a water temperature at normal operation not exceeding 105 °C.$

This European Standard does not contain all the necessary requirements for:

  • assemblies designed as units;

  • condensing boilers;

  • boilers intended to be installed in the open;

  • boilers permanently fitted with more than one flue outlet;

  • boilers fitted with a draught diverter;

  • boilers intended to be connected to a common flue having mechanical extraction.

This European Standard does not apply to living-space dedicated boilers (see 3.6).

If the boiler body has already been tested with a liquid fuel burner, in accordance with EN 303-1, EN 303-2 and EN 304, only the tests described in Annex G need to be performed.

In the case of a range of boilers, see Annex F.

Text deleted

This European Standard only covers type testing.

Committee
GSE/29
DevelopmentNote
Supersedes 93/711568 DC. (09/2004)
DocumentType
Standard
Pages
40
PublisherName
British Standards Institution
Status
Current
Supersedes

11/30229801 DC : 0 BS 6644 - SPECIFICATION FOR THE INSTALLATION OF GAS-FIRED HOT WATER BOILERS OF RATED INPUTS BETWEEN 70 KW (NET) AND 1.8 MW (NET) (2ND AND 3RD FAMILY GASES)
BS 6644(2005) : 2005 SPECIFICATION FOR INSTALLATION OF GAS-FIRED HOT WATER BOILERS OF RATED INPUTS BETWEEN 70 KW (NET) AND 1.8 MW (NET) (2ND AND 3RD FAMILY GASES)
BS 6644:2011 Specification for the installation and maintenance of gas-fired hot water boilers of rated inputs between 70 kW (net) and 1.8 MW (net) (2nd and 3rd family gases)
03/310868 DC : DRAFT JUNE 2003 BS 6644 - SPECIFICATION FOR INSTALLATION OF GAS-FIRED HOT WATER BOILERS OF RATED INPUTS BETWEEN 70KW (NET) AND 2MW (GROSS) (2ND AND 3RD FAMILY GASES)

EN 676:2003+A2:2008/AC:2008 AUTOMATIC FORCED DRAUGHT BURNERS FOR GASEOUS FUELS
EN 304:2017 Heating boilers - Test code for heating boilers for atomizing oil burners
EN 303-1:2017 Heating boilers - Part 1: Heating boilers with forced draught burners - Terminology, general requirements, testing and marking
EN 303-2:2017 Heating boilers - Part 2: Heating boilers with forced draught burners - Special requirements for boilers with atomizing oil burners

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