RuneScape: Dragonwilds Blast Furnace

The wiki describes the Blast Furnace in one line: it uses intense heat to smelt high-tier metal ores into ingots. It is a build-menu facility rather than a station you find in the world, it was released on 15 December 2025 alongside Fellhollow, and the buildings article groups it with the Material Processing structures — the kiln, furnace, grindstone, spinning wheel, loom and tannery.

The ordinary Furnace does the same job one tier down and has been in the game since 15 April 2025. Putting the two side by side is the clearest way to see what the newer station adds, because the wiki documents both in the same format.

The roof rule is worth reading twice, because it is the one requirement that catches people out after they have paid the build cost: a roof above the station stops it working, so it goes outside your walls rather than in the workshop you built for the other benches. Superheat is the other half of the same sentence — it is a skill spell rather than a consumable, and the skills and spells guide covers where it sits in the spell list.

The unlock condition is not a skill level or a quest. The wiki states that the Blast Furnace can only be built once the player has unlocked the recipe by obtaining coal for the first time — the same pattern the ordinary furnace uses with tin ore. Because coal is abundant in Fellhollow and present in earlier regions, in practice the recipe usually appears the first time you mine a coal deposit anywhere.

Skill requirement

Construction 12

Granite

12

Iron Bar

8

Draconic Leather

4

Fire Rune

10

Vault Core

2

Output

1 Blast Furnace

Only one line in that list is region-locked. Draconic Leather comes from dragon wolves in Fellhollow — the hide goes through a tannery — which means the newest station in the game needs materials from the newest region. The Fellhollow page covers where the wolves are, and the video walkthrough that goes with this build notes that four leathers is roughly one to two wolves, so the trip is short once you are there.

Everything else is obtainable earlier. Granite, Iron Bars and Fire Runes come from the base-game routes, and Vault Cores are the resource the base locations guide already treats as the gate on lodestones, which is why two of them is the cost that slows the build down most. The remaining question is where your coal comes from, and the honest answer is that early on it is the same trip: the map guide covers how Fellhollow sits relative to the regions you will have unlocked by then.

The Blast Furnace does not accept wood, charcoal or coal. It runs on fuel pellets, and those are crafted rather than gathered. The wiki gives the recipe as a combination of charcoal, adhesive and coarse animal fur; none of the three comes from Fellhollow, so this is preparation you do at your base rather than another regional grind.

Charcoal

Made from wood in the kiln

Adhesive

Made from swamp tar in the kiln

Coarse animal fur

Animal drops, gathered in the usual way

Not usable

Wood, charcoal or coal loaded straight into the furnace

Where it goes

The fuel section at the bottom of the furnace interface

There is one detail where the sources disagree, and it is worth knowing before you go looking. The wiki says fuel pellets are assembled at a blacksmith’s bench. The December 2025 steel-tier walkthrough says the standard crafting table, scrolling to the bottom of the menu and looking under miscellaneous next to the whetstones. Both are plausible readings of a menu that changed after launch; if you cannot find the recipe at one station, try the other. The pellets themselves look the same either way.

The same walkthrough flags a naming trap that costs people a trip: coal and charcoal are not the same item. Coal is the black ore you mine from cliff nodes, and it is the input. Charcoal is the kiln product, and it is a fuel-pellet ingredient. If your blast furnace will not start, the odds are you carried charcoal home thinking it was the ore.

The wiki lists the station’s full output table with experience per craft, and it is short enough to reproduce in full. Two things stand out when you read down it: steel is the only bar with three separate recipes, including one that takes an iron bar you have already smelted, and the table ends with molten glass and refined obsidian, which are not metal at all.

The pattern in the inputs is worth understanding rather than memorising. Coal is the constant — every metal bar in the table takes three of it, whichever ore you pair with it, which is why the Fellhollow page treats the region’s coal nodes as the real bottleneck. The variants that take a salvage pile or scraps instead of raw ore are recycling routes: nine pieces of salvage for one bar, at exactly the same experience as the ore version for steel and mithril. And the leaf recipes at the bottom — Bronze, Silver and Gold Leaf — convert ten leaves into a bar with no coal at all, which makes them the cheapest way to keep the station busy without spending the coal you mined for steel.

Where the bars go afterwards is the other half of the picture. Steel feeds the tier 5 armour and weapon families the armour guide and weapons guide set out, mithril and adamant sit further up the same ladders, and the refined obsidian and molten glass outputs are the ones that surprise people who built the station expecting only metal. The materials guide covers how ground limestone, ground sandstone and ground obsidian are produced in the first place.