Box Furnaces

The Solar Power Laboratory presently has two Fischer Scientific forced draft muffle furnaces with PID microprocessor control at operating temperatures up to 1125 C.  The furnace chambers are molded from alumina silicate ceramic fibers for low thermal mass and to provide a low exterior surface temperature.  The furnaces are heated by electric resistance elements embedded in the bottom and side walls.  Temperature uniformity is aided by a blower/heater which serves to pre-heat ambient air before it enters the chamber.  Customized heating programs consisting of up to 24 heating/cooling ramps can be created.