The SC2 has been in production since 1997. It is a proven design that we have steadily refined every year. Thousands of artists in the U.S., Canada, Europe, and Japan love their SC-2. The SC 2 is popular in art centers, colleges, craft classes, and even engineering laboratories. The high-tech ceramic fiber firing chamber is wrapped in a steel inner case. The outer steel case remains cool due to the layer of air between it and the inner case. In addition, the case is slotted for air circulation. Electrical components, located in the base, stay cool even at extended hold times.