SCHEDULEN.I.Authorised fuels

61.  ZIP Firelogs, manufactured by Allspan B.V., Macroweg 4, 5804 CL Venray, the Netherlands, which—N.I.

(a)comprise slack wax (as to approximately 58 to 59% of the total weight) and hardwood sawdust (as to approximately 41 to 42% of the total weight);

(b)were manufactured from those constituents by a process of heat treatment and extrusion;

(c)are firelogs approximately 265mm in length and 80mm in depth, with grooves along the faces;

(d)have an average weight of 1.3kg per firelog; and

(e)have a sulphur content not exceeding 0.1% of the total weight.