The apparatus consists of a heating element within a conically shaped refractory crucible which is enclosed in a Stainless Steel cylindrical housing which form the support. Perforations provides at the lower part of support and also a concentric gap left between the refractory casing and support will prevent any undue temperature rise. Porcelain conical cup ID 60mm X height 50mm from outside. The element attains the temperature range of 800°C to 1000°C consumes350 watts approx. maximum working temperature is about 600°C to 700°C.Model BB