The TCon smeltery usually runs on lava as a heat source for melting things down. PlusTiC allows smelteries to run on liquid pyrotheum, hotter than lava! Helium plasma in the smeltery should be at least a hundred times hotter than pyrotheum. All of that heat from He plasma is good for making lots of tungstensteel and other refractory metal alloys via the smeltery.

Refractory metal alloys leave hot ingots when solidified, so it's a good idea to add hot ingots as a suitable product of those casting tables with ingot casts on them.