What is BS EN 16497-2 - Chimneys - Concrete System Chimneys - Balanced flue applications about?
BS EN 16497-2 is the second part of the multi-series standard that is applicable to balanced flue applications of concrete system chimneys
BS EN 16497-2 specifies the materials, dimensional and performance requirements for straight concrete system chimneys for balanced flue applications comprising a concrete flue liner and a combustion air supply duct, and a combination of compatible chimney components, which may be concrete flue blocks (see Clause 4), obtained or specified from one manufacturing source with product responsibility for the whole chimney.
BS EN 16497-2 also applies to concrete system chimneys constructed from storey-height elements and flue blocks reinforced for handling.
Note-
BS EN 16497-2 does not apply to concrete system chimneys with back ventilation.
BS EN 16497-2 does not cover products designated wet (W) in conjunction with corrosion class 3.
BS EN 16497-2 does not apply to structurally independent (free-standing or self-supporting) system chimneys.
Who is BS EN 16497-2 - Chimneys - Concrete System Chimneys - Balanced flue applications for?
BS EN 16497-2 on chimneys - Concrete System Chimneys - Balanced flue applications is useful for:
- Contractors and architects  
- Environmental auditors 
- Chimney manufacturers and suppliers 
- Regulatory authorities 
- Testers of chimney
- Installers of chimney
Why should you use BS EN 16497-2 - Chimneys - Concrete System Chimneys - Balanced flue applications?
The wall or walls of concrete flue liners or concrete flue blocks will be precast concrete. For multiwall concrete flue blocks, the concrete liner and outer wall will be separated by an air space or insulation.
BS EN 16497-2 provides you with general material characteristics, treatments, performance requirements for straight concrete system chimneys for balanced flue applications.
BS EN 16497-2 will help you to identify materials for factory production control purposes and to install them in accordance with the system chimney installation instructions. Also, to know appropriate resistance to fire external to external.
