The furnaces are strongly constructed of zinc coated steel powder coated Wedgewood blue with Hi Temp black front face and door. The muffle is strongly supported by a refractory mould at the front and insulating bricks at the back. It is insulated with top grade ceramic fibre blanket or non-hazardous substitutes on request. The steel cover around the muffle is surrounded by an air cavity and by gravity convection draws heat away from the bottom and out through the top reducing the wall temperature of the outer body. An air gap at the front and louvres on back panel allow adequate air flow to ensure a cool instrument panel. All cantilever door furnaces are fitted with a door switch for safety. Kanthal A1 Element is controlled by a microprocessor based PID Controller complete with Auto Tune function and sensor compensation for accurate temperature control. An overtemp cutout is also provided as a standard feature.100 SERIES: POWER RATING – 2400W, WEIGHT – 50KG, CAPACITY – 3.5L, External 456Dx468Wx560H Internal 250Dx160Wx90H