Technical Booklet L Combustion Appliances and Fuel Storage Systems·Page 53·Diagram 3.13
Walls adjacent to hearths - diagram and clearances
Diagram 3.13 illustrates the clearance requirements and dimensions for walls adjacent to hearths, showing the distance X and the solid non-combustible material protection required.
Diagram 3.13 shows walls adjacent to hearths with clearances from Diagram 3.9, height H as per Table 3.6, solid non-combustible material (e.g. masonry or concrete), appliance position, distance X with note that there is no requirement for protection of the wall where X is more than 150 mm, minimum 150 mm distances, and references to para 3.32 and Table 3.6.
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