This 70mm rear offset block is intended for integration within gas appliance flue systems where a rear offset is required. The design helps accommodate alignment issues commonly encountered during installation in both new builds and refurbishments.
On site, the block is typically built into clay chimney or flue systems to enable a controlled offset, supporting the connection of flue liners. It is suitable for use with pitched roofing and is commonly chosen for repair or replacement work involving chimney pots.
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