
Care should be taken to make sure that the hinges are not damaged during installation. HEARTH The fire should be installed to stand on a constructional hearth of non-combustible materials not less than 125mm (5'') thick conforming to Building Regulations. Dimensions of the hearth should project at least 300mm (12'') forward of the front of the appliance and 150mm (6'') at the sides. The surface of the hearth should be free of combustible materials. In most buildings with solid concrete floors th