The DFC Model 800 Electric Cupel Furnace is designed for cupellation of ores in the assay process. Thousands of these furnaces are in use throughout the world in assay labs today. These furnaces are small enough to be either free standing of mounted on a lab table top. They feature automatic or manual 7 day timer control, prefired monolithic heating zone lining, silicon carbide hearth plate, selectable single phase input voltages, integral exhaust blower to vent both interior and full hood over door, counterbalanced lift up door with view ports, door is always under ventilation hood, solid state proportional temperature controller with integral zero crossover power unit, precise air ventilation control with infinite adjusting damper, laminar horizontal airflow patters, silicon carbide heating elements (4 elements under hearth plate, 3 elements in ceiling) which can be independently controlled. Also, for maintenance, the heating elements are easily replaced.