Separation of combustible material from fireplaces and flues

Combustible material should not be located where the heat dissipating through the walls of a fireplace or flue could ignite it. The minimum separation distances for combustible material should be – (a) 200 mm from the inside surface of a flue or fireplace recess; (b) at least xx mm from a flue product with designated separation distance (Gxx); or (c) 40 mm from the outer surface of a masonry chimney or fireplace recess unless it is a floorboard, skirting board, dado rail, picture rail, mantel shelf or architrave. Metal fixings in contact with combustible materials should be not less than 50 mm from the inside surface of a flue.