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Fireplace recesses and prefabricated appliance chambers
3.30NI-wide·Technical Booklet L Combustion Appliances and Fuel Storage Systems
Fireplaces should be designed and constructed so that they adequately protect the building fabric from catching fire. They should be built utilising – (a) a fireplace recess of masonry or concrete as
combustion-appliancesfire-safetydwellingconstructionMinimum thickness of components for prefabricated appliance chambers
Table 3.5NI-wide·Technical Booklet L Combustion Appliances and Fuel Storage Systems
Table 3.5 Minimum thickness of components for prefabricated appliance chambers Component | Minimum thickness (mm) Base | 50 Side section, forming wall on either side of chamber | 75 Back section, for
combustion-appliancesfire-safetydwellingconstruction