What is BS EN 303-1-heating boilers about?
BS EN 303 discusses heating boilers. BS EN 303-1 is the first part of the BS EN 303 series and discusses terminology, general requirements, testing, and marking. Boilers in accordance with BS EN 303-1 are designed for the heating of central heating installations in which the heat carrier is water and the maximum allowable operating temperature of which is restricted to 100 °C. The maximum allowable operating pressure is 8 bar.
BS EN 303-1 applies to boilers used for central heating (heating boilers) with forced draught burners with a nominal heat output not exceeding 1 000 kW, which are operated either with negative pressure (natural draught boilers) or with positive pressure (pressurized boiler) in the combustion chamber, in accordance with the boiler instructions.
For boilers and water heaters (storage or continuous flow heater), BS EN 303-1 only applies to the parts which are necessarily subject to the operating conditions of the heating boiler (heating part).
Note: BS EN 303-1 does not apply to gas boilers with atmospheric burners, boilers for solid fuels, boilers with oil vaporization burners. For these boilers, there are further requirements.
Who is BS EN 303-1-heating boilers for?
BS EN 303-1 on heating boilers with forced draught burners is useful for:
- Boiler manufacturers
- Quality control personnel
Why should you use BS EN 303-1-heating boilers?
Boilers shall be fire-resistant and safe to operate. They shall be made of non-combustible materials and shall be resistant to deformation and shall be such that they can withstand the stresses arising during normal operation, the burner and the boiler cannot become heated to create a hazard, dangerous accumulations of combustible gases (fuels mixed with air) in the combustion chamber and in the flues are prevented, and gases cannot leak from the boiler in dangerous quantities.
BS EN 303-1 provides you with the necessary terminology, the requirements on the materials and testing of them, and marking requirements for heating boilers. The requirements in BS EN 303-1 includes constructional requirements, operational requirement, and requirements on electrical equipment. The test in BS EN 303-1 helps you to ensure that the construction materials and welds meet the requirements of the factory production control system and thus helping you in manufacturing high-quality heating boilers.
What’s changed since the last update?
BS EN 303-1:2017 supersedes BS EN 303-1:1999, which is withdrawn. BS EN 303-1:2017 includes some technical changes with respect to BS EN 303-1:1999. These include:
- Construction requirements were adopted from EN 15034
- Terminology of EU-Regulations 811/2013 and 813/2013 adopted
- The document was completely revised technically
- The document was completely revised editorially