Technical Booklet L Combustion Appliances and Fuel Storage Systems·Page 75·5.19
Flue penetration of fire compartment boundaries
A flue pipe or flue that penetrates a fire compartment wall or floor must not breach the fire separation requirements of Part E of the Building Regulations.
Where a flue pipe or flue penetrates a fire compartment wall or floor, it must not breach the fire separation requirements of Part E of the Building Regulations.
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