Technical Booklet L Combustion Appliances and Fuel Storage Systems·Page 52·3.32
Walls adjacent to hearths
Walls next to hearths or appliances (not part of a fireplace recess or prefabricated chamber) must protect the building from fire and be constructed according to specified provisions. Clearances may be reduced for appliances with surface temperatures not exceeding 85°C in normal operation.
Walls that are not part of a fireplace recess or a prefabricated appliance chamber, but are adjacent to a hearth or appliance, should protect the building from catching fire. They should be constructed in accordance with the provisions given in Diagram 3.13 and Table 3.6. Clearances shown in Diagram 3.13 may be reduced to manufacturer's recommendations for appliances with surface temperatures not exceeding 85ºC when in normal operation.
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