Box Furnace Convection Type Natural Gravity Temp Range (C) 1200 Degrees Temp Range (F) 2192 Degrees Overall Height 23 in Overall Width 14.75 in Overall Depth 19 in Chamber Height 5.31 in Chamber Width 5.51 in Chamber Depth 9.84 in Hz 60 Voltage 220-240 Watts 800 W Capacity (Cu.-Ft.) 0.177 Capacity (ML) 5 000 Programmable No Temp Uniformity +/-5 Degrees C Preheat Time 35 min Chamber Material Refratory Ceramic Door Material Refratory Ceramic