British Standards Institution

Sector: Sustainability

Overview: Under the direction of the Standards Policy and Strategy Committee, is responsible for the UK input to CEN/TC 109, central heating boilers using gaseous fuels, and the UK input to CEN/TC 48 domestic gas-fired water heaters.

Committee standards activity

In Progress (12)

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Reference	Standards description	Status ? The standards development process is divided into chronological stages: Proposal; Drafting; Public comment; Comment resolution; Approval; Published standard.
Revision of EN 303-7;2006 (to be published as EN 15502-2-7) -	Heating boilers - Part 2-7 - Specific standard for gas-fired central heating units Categories: Standardization. General rules \| Engineering \| Energy and heat transfer engineering \| Burners. Boilers \| Burners. Gas fuel \| Boilers and heat exchangers Proposal begins : 2022-01-11	Proposal
Preliminary Work item for CEN/TS 15502-3-3:	"Gasfired central heating boilers – Part 3-3: 100 % Hydrogen – Expansion of EN 15502-2-1:2022" Categories: Information management \| Standardization. General rules \| Construction \| Construction materials and building \| Installations in buildings \| Central heating \| Water heating Proposal begins : 2023-05-19	Proposal
Preliminary Work item for CEN/TS 15502-3-2:	"Gasfired central heating boilers – Part 3-2: Expansion of EN 15502-2-2 to include H2NG-Y20 appliances using a pneumatic gas supply (PGS) control" Categories: Information management \| Standardization. General rules \| Construction \| Construction materials and building \| Installations in buildings \| Water heating Proposal begins : 2023-05-19	Proposal
NWIP EN 26 Revision -	Gas-fired instantaneous water heaters for the production of domestic hot water Categories: Information management \| Standardization. General rules \| Construction \| Construction materials and building \| Installations in buildings \| Water heating Proposal begins : 2023-09-22	Proposal
DECISION 3/2023 - Adoption of PWI for Repair and re-use	Repair and re-use of gas-fired heating products' Categories: Information management \| Standardization. General rules \| Construction \| Construction materials and building \| Central heating \| Water heating Proposal begins : 2023-02-28	Proposal
DECISION 2/2023 - Adoption of PWI for Durability	'Durability of gas-fired heating products' Categories: Information management \| Standardization. General rules \| Construction \| Construction materials and building \| Central heating \| Water heating Proposal begins : 2023-02-28	Proposal
CEN/TC 48 NWIP	EN 89 Rev Categories: Information management \| Standardization. General rules \| Construction \| Construction materials and building \| Installations in buildings \| Water heating Proposal begins : 2022-11-16	Proposal
CEN/TC 109 N 1389, Revision of EN 5502-2- 2. 2014	Gasfired central heating boilers Part 22: Specific standard for type B1 appliances Categories: Information management \| Standardization. General rules \| Engineering \| Energy and heat transfer engineering \| Burners. Boilers \| Boilers and heat exchangers \| Construction \| Construction materials and building \| Central heating Proposal begins : 2021-08-17	Proposal
BS EN 89:2015 +A1	Gas-fired storage water heaters for the production of domestic hot water Categories: Water heating Public comment begins : 2016-05-05	Public comment
BS EN 26:2015 +A1	Gas-fired instantaneous water heaters for the production of domestic hot water Categories: Water heating Public comment begins : 2016-05-05	Public comment

Published (23)

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Reference	Standards description	Status ? The standards development process is divided into chronological stages: Proposal; Drafting; Public comment; Comment resolution; Approval; Published standard.
PD CEN/TS 15502-3-1:2024	Gas-fired central heating boilers. H2NG and ACCF. Expansion of EN 15502-2-1:2022 Categories: Boilers and heat exchangers \| Hydrogen technologies \| Central heating Published standard begins : 2024-05-20	Published standard
BS EN 89:2015	Gas-fired storage water heaters for the production of domestic hot water Categories: Water heating Published standard begins : 2015-05-15	Published standard
BS EN 656:2000	Gas-fired central heating boilers. Type B boilers of nominal heat input exceeding 70 kW, but not exceeding 300 kW Categories: Central heating Published standard begins : 2006-09-13	Published standard
BS EN 483:2000	NO TITLE Categories: Central heating Published standard begins : 2000-01-13	Published standard
BS EN 303-7:2006	Heating boilers. Gas-fired central heating boilers equipped with a forced draught burner of nominal heat output not exceeding 1000 kW Categories: Central heating Published standard begins : 2007-01-23	Published standard
BS EN 303-3:1999	Heating boilers. Gas-fired central heating boilers. Assembly comprising a boiler body and a forced draught burner Categories: Central heating Published standard begins : 2004-09-03	Published standard
BS EN 26:2023	Gas-fired instantaneous water heaters for the production of domestic hot water Categories: Water heating Published standard begins : 2023-12-22	Published standard
BS EN 26:1998	Gas fired instantaneous water heaters for the production of domestic hot water, fitted with atmospheric burners Categories: Water heating Published standard begins : 2005-09-01	Published standard
BS EN 15502-2-3:2023	Gas-fired central heating boilers. Specific standard for hybrid units combining a gas-fired boiler and an electrical heat pump in a product Categories: Boilers and heat exchangers \| Central heating Published standard begins : 2023-09-26	Published standard
BS EN 15502-2-2:2024	Gas-fired central heating boilers. Specific standard for type B1 appliances Categories: Boilers and heat exchangers \| Central heating Published standard begins : 2024-07-29	Published standard

Withdrawn (24)

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Reference	Standards description	Status ? The standards development process is divided into chronological stages: Proposal; Drafting; Public comment; Comment resolution; Approval; Published standard.
BS EN 89:2000	Gas-fired storage water heaters for the production of domestic hot water Categories: Water heating Withdrawn begins : 2007-01-22	Withdrawn
BS EN 89:2000	Gas-fired storage water heaters for the production of domestic hot water Categories: Water heating Withdrawn begins : 2015-05-15	Withdrawn
BS EN 656:2000	Gas-fired central heating boilers. Type B boilers of nominal heat input exceeding 70 kW but not exceeding 300 kW Categories: Central heating Withdrawn begins : 2006-09-13	Withdrawn
BS EN 483:1999+A4:2007	Gas-fired central heating boilers. Type C boilers of nominal heat input not exceeding 70 kW Categories: Central heating Withdrawn begins : 2015-10-14	Withdrawn
BS EN 26:2015	Gas-fired instantaneous water heaters for the production of domestic hot water Categories: Central heating Withdrawn begins : 2023-12-22	Withdrawn
BS EN 26:1998	Gas-fired instantaneous water heaters for the production of domestic hot water, fitted with atmospheric burners Categories: Water heating Withdrawn begins : 2005-09-01	Withdrawn
BS EN 15502-2-2:2014	Gas-fired central heating boilers. Specific standard for type B1 appliances Categories: Boilers and heat exchangers \| Central heating Withdrawn begins : 2024-07-29	Withdrawn
BS EN 15502-2-1:2022	Gas-fired central heating boilers. Specific standard for type C appliances and type B2, B3 and B5 appliances of a nominal heat input not exceeding 1 000 kW Categories: Boilers and heat exchangers \| Central heating Withdrawn begins : 2024-01-16	Withdrawn
BS EN 15502-2-1:2012+A1:2016	Gas-fired central heating boilers. Specific standard for type C appliances and type B2, B3 and B5 appliances of a nominal heat input not exceeding 1 000 kW Categories: Boilers and heat exchangers \| Central heating Withdrawn begins : 2022-11-11	Withdrawn
BS EN 15502-2-1:2012	Gas-fired central heating boilers. Specific standard for type C appliances and type B2, B3 and B5 appliances of a nominal heat input not exceeding 1 000 kW Categories: Boilers and heat exchangers \| Central heating Withdrawn begins : 2015-02-05	Withdrawn

Standards Development

GSE/29 - Gas-fired central heating boilers (domestic and non-domestic) and domestic gas-fired water heaters

Committee standards activity