High performance reliability.   High- temperature insulating bricks used. F1+4 bricks with sodium silicate.   4mm optical fibre cable used.   Programable heating controller.   Programable start delay in each program.   Programable temperature levels of ventilation control (on/off) in each program.   Automatically resumes operation when electric supply resumes after incidental   power cut.   All programmable parameters saved in non volatile memory.   Optional logging of thermal process in non volatile memory.   Outer body totally made from Iron