The GM818-3CR was designed to provide artists a crucible furnace that is affordable and inexpensive to operate. Rated to 2350 F. this furnace is designed to melt both soft glass and borosilicate glass.  It is perfect for the occasional user and makes a wonderful color pot for use with a full-size furnace. This unit comes standard with long lasting Kanthal APM elements.  These elements are specifically designed to be used in applications where artists are holding at high temperatures.  Type S thermocouples should last a very long time. The Type S thermocouple performs extremely well in high temperatures and corrosive atmospheres. The solid state relays that also come standard on this furnace are virtually silent and are extremely reliable.

The furnace is equipped with a six inch hole cut in the lid.  This is topped by a hinged top hat door with a wood handle which is convenient and easy to use. Just post up your crucible in the furnace so the lip of the crucible is nearly flush with the bottom of the main lid. (Crucible and posts not included). The holes in the furnace lid can be cut at different sizes to accommodate different shaped crucibles.

One of the main benefits of this furnace is the GlassMaster Controller. The numbered touch pad allows you to enter data without having to scroll up and down to select temperatures.  You can store up to 12 customized firing programs with up to 16 segments. Each segment may consist of a rate of climb (heating or cooling), a target temperature, and a hold time.  The controller also includes features such as Delay Start, Programmable Temperature Alarm, Diagnostics (reads voltage and amperage), and much more.

	GlassMaster Controller
	Type S Thermocouple
	APM Elements
	Solid State Relays
	Hinged, Wood Handled Top Hat Door