To cut down on the entrance cost we recommend that you get The Ring of Charos (a). But, do not use the pay option on OSRS GP the Blast Furnace foreman because it will invalidate the effects of the ring. The ring can be obtained in The Creature of Fenkenstrain questline.
Bring Ice Gloves to the Blast Furnace will help when using the bar dispenser as it will cool them down quickly and make them easier to grab. This will help you save time, instead of having to collect buckets of water repeatedly to cool the bars (and it'll help you save space in your inventory too!).
Before you get started on you journey toward the Blast Furnace itself it's worth noting that it's only available in the following worlds: 352, 355, 358, 386, and 387. Once you've met the Giant Dwarf and proceeded to Keldagrim it is necessary to turn north and work your way to the bridge. After you've crossed the bridge, continue on south until notice your Blast Furnace icon on the map. Once inside the marked building go downstairs, and you'll discover the furnace.
After this is done, it'll be far easier to visit the area in the future. There's a way to make use of the Grand Exchange shortcut on buy RuneScape gold the northwest wall, take an excursion on the minecart and explore Ice Mountain dwarf mines, or utilize the minigame group finder that will let you enter the building.
