Not provided for the inserts, the pellets do not burn at all, since it is placed on the gille holes of the insert. This one is without holes, there's nothing to stoke the fire since air holes below and on the sides were not provided. Insert 33cm deep with forms of gutters, holes 36 cm in height and 56 cm wide. A standard basket of adaptable H15 L45 and l30 to 20 would be more appropriate. Signed Gérard Chérel