melter

Same as milter.

One who melts; specifically, the official in a mint who superintends the melting of gold and silver for coining.

A furnace, pot, or crucible used for melting any substance; a melting-pot: as, a melter for combining the ingredients in the manufacture of sealing-wax.

One who, or that which, melts.

A person or thing that melts.

Specifically, a furnace used for melting iron in a foundry, or a laborer who operates such a furnace.

a worker who melts substances (metal or wax etc.)