This 222mm plain block is intended for building gas flues in brick or masonry chimneys. Its plain design without a nib allows for smooth stacking and alignment, making it practical for constructing straight flue runs onsite.
Commonly used in both new build and renovation settings, the block is integrated with other chimney system components to create a continuous gas flue. Trade professionals such as builders and heating engineers often use it when installing or repairing flue systems serving gas appliances in various property types.
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