Standard sturdy double wall fabrication.  Inner & outer chambers made out of thick mild steel sheet.  Inner chamber backed silver paint finish and exterior finished in hammertone.  Gap between two walls filled with glass wool for temperature insulation.  

Heavy duty forced air blowers are provided to constantly circulate hot wall door is mounted  on heavy  hinges and provided with heavy moulded latch.

Temperature is controlled by a thermostat and it can be read on dial type thermometer.  Temperature range : 50 ^o C to 250 ^o C +  2 ^o C  to 5 ⁰ C and equipment is workable on 220 V AC 50 Hz single phase or 440 volts A.C. supply.