However, I must say that this one is this outrageously expensive on Amazon. For the same money 50KG there at the hardware store around the corner. In general, the cost here in the Bauhaus 5,99 / 25 KG bundle. I think that's not something you absolutely must send through the area, it also saves nothing.
For each who has never heated with coal was told lignite smelling slightly uncomfortable when you open the oven door (sulfur). Therefore always best reloading time, and still leave enough train by heat is present.
Otherwise own this super briquettes to heat in combination with wood. I always give 3 pieces of wood and a briquette at the same time in the oven. Thus, the glow will last longer. Evening inserted sometimes even until morning.