Light weight with ceramic fibre wooled insulation (instead of brick insulation). The outer casing is made of double walled thick P.C.R.C. sheet, reattached with thick perforated sheet on the bottom portion, painted wit attractive stove enamel. Heating elements are made of KANTHAL "A-1" wire and backed by high temperature cerwool insulation, which avoids loss of energy. Temperature control unit consists of Energy Regulator, fitted in front of furnace with two pilot lamps. The apparatus is complete with one pyrometer, thermocouple, silver thermal fuse, main lead with power plug. To work on 220/230 volts or 400/440 volts A.C.. The energy regulator dial is arbitrarily marked 0-100 position. This marking does not indicate temperature. It indicates control level i.e. at Position "100" maximum electricity is allowed to flow to the furnace. At position "0" minimum electricity is flow to furnace. Maximum Temp. is 950ºC and working Temp. 900ºC. For model of higher temperature the maximum Temp. is 1200ºC and working temp. 1100ºC.