This guide assumes that the player uses a portable forge placed down by someone else and that the forge is placed optimally right next to a bank. For members, a portable forge can usually be found in world 2 at the bank in Burthorpe or near the Combat Academy bank chest in Lumbridge. For free-to-play players there's usually one at the Lumbridge Combat Academy in world 3. A portable forge is much more convenient than a normal forge but also has a 5% chance of producing an extra bar while smelting, which essentially gives the player 60 free runite bars per hour ( coins worth).