British Standards Institution

Source:: CEN
Committee:: RHE/24 - Heating systems and water based cooling systems in buildings
Categories:: Central heating
Number of comments:: 0

Scope

This document is applicable to boilers used for central heating in accordance with EN 303‑1:2017 up to a nominal heat output of 1 000 kW and EN 303‑4:1999 up to a nominal heat output of 70 kW with forced draught burners in accordance with EN 267:2020 that are designed for operating with liquid fuels.

The performance requirements of this document 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 304:2017.

This document applies also to room sealed boilers as defined in EN 15035 regarding efficiency and emissions.

This document can also be used as the basis for evaluation of boiler-/burner units.

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Please email further comments to: debbie.stead@bsigroup.com

Standard timeline

1. Proposal (Complete)

Proposal start date:

2. Draft (Complete)

Draft start date:

15/12/2022

3. Public Comments

Public Comments start date:

16/03/2023

Public Comments end date:

09/05/2023

4. Comment Resolution

Comment Resolution start date:

22/05/2024

5. Approval

6. Publication

Publication start date:

18/12/2024

Learn more about the standards development process

Standards Development

BS EN 303-2 Heating boilers. - Part 2: Heating boilers with forced draught burners - Special requirements for boilers with atomizing oil burners

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