Ashing Furnace Convection Type Natural Gravity Temp Range (C) 1100 Degrees Temp Range (F) 2012 Degrees Overall Height 27.75 in Overall Width 20 in Overall Depth 26.5 in Chamber Height 9.25 in Chamber Width 7.71 in Chamber Depth 15.74 in Hz 60 Voltage 220-240 Watts 1 600 W Capacity (Cu.-Ft.) 0.636 Capacity (ML) 18 000 Programmable No Temp Uniformity +/-5 Degrees C Preheat Time 70 min Chamber Material Refratory Ceramic Door Material Refratory Ceramic