Crucible Pot Stand made from 1600C Refractory. 
It is important to retain the flame vortex in the furnace to, ensure even heating of the furnace and crucible as well as increasing fuel efficiency.
Using an old fire brick to stand  the crucible on interferes with this vortex taking longer to bring the melt to temperature and uses excessive fuel.
The pot stand is 100mm diameter and 50mm high.
It is suitable for crucible sizes A5 to A10


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