The furnaces are built in Italy from where they are exported all over the world. To date, MAPPI has installed more than 200 furnaces. MAPPI’s furnaces are characterised by their innovative construction and excellent insulation thanks to the use of sustainable materials, making MAPPI furnaces considerably more energy efficient and environmentally friendly than those of the competition. The manufacturing and tempering process is controlled by an integrated quality management system which complies with ANSI and CE standards. Thanks to GHBS convection technology coated glass can also be tempered without any problems. The furnaces are controlled by a SIEMENS PLC computer. Specific software controls the heating zones and the multi-zone heating system ensures that only the zones where there is glass are heated.