Double walled, both inner and outer walls made of stainless steel and the gap between the two walls is filled with high grade mineral wool. Capacity 2 ltr. of Wax. Temperature from ambient to 70°C is controlled through a hydraulic type capillary thermostat. Melted wax can be drained out through a tap in which the temperature can also be controlled. This is used for making wax embedded blocks. The unit operates of 220/230 volts AC supply.