* There are no known size limitations for items the smelter can smelt. The item only needs to be metal, not enchanted, and able to be heated to a sufficiently hot temperature.
* The "'Smelt'" action is not available if the item is not glowing dimly or hotter.
**When an item is marked as "glowing dimly", it may need more time to become glowing brightly or even glowing white hot before the Smelt option is available.
* Smelting a rare or better metal item will produce a corresponding rare or better lump.
* A small amount of metal from the original item is typically lost to the smelting process.