BS 715:1989 - Specification for metal flue pipes, fittings, terminals and accessories for gas-fire appliances with a rated input not exceeding 60 kW
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The standard covers the specifications for the materials, design, construction, and performance of metal flue pipes and their components.
It is applicable to flue systems used with gas-fired appliances, such as boilers and heaters, with a rated input not exceeding 60 kW.