For 12/15 muffles (tank dimensions 30W X 33D X 26H cm) With electronic card for programming 2 phases. (1 st phase: pre-heating – 2 nd phase: boiling). Pre-heating and boiling times, programmable by electronic card. Rising speed preset by the operator according to his needs. Timer for deferred ignition, controllable by electronic card. Made of stainless steel.