Skip to content

Blackrock Foundry

The Blast Furnace Guide

The Blast Furnace in Blackrock Foundry, quoted from the Adventure Guide. Database holds the raw abilities and the full loot table.

Advertisement
Advertisement

30-second TL;DR

Adventure Guide says

  • The objective of this encounter is to destroy the Foundry's massive furnace.
  • Players must first disable the Blast Furnace's Heat Regulators, which will release the Heart of the Mountain, a blazing fire Fury that powers the furnace.
  • Stages named in the Adventure Guide: Stage One: Sabotage, The Blast Furnace, Get in the Fight!, Stage Two: The Heart Exposed, The Blast Furnace, Stage Three: Freedom!.
  • Tanks: Position enemies so that they are not protected by Security Guards' Defense ability.
  • Healers: Players in the vicinity of Foreman Feldspar suffer Fire damage as long as they are close to him.
  • Damage dealers: Furnace Engineers attach bombs to random targets. Detonate these bombs near a Heat Regulator to damage them.

Overview

Adventure Guide says

The objective of this encounter is to destroy the Foundry's massive furnace. Players must first disable the Blast Furnace's Heat Regulators, which will release the Heart of the Mountain, a blazing fire Fury that powers the furnace. Primal Elementalists then join the fight and channel beams to control the raging Fury. Once the Primal Elementalists have fallen, the Heart of the Mountain is unleashed and must be dealt with directly.

  • Furnace Engineers attach bombs to random targets. Detonate these bombs near a Heat Regulator to damage them.
  • Defeat Slag Elementals near Primal Elementalists to temporarily disrupt their protective shield.
  • Interrupt Firecallers' Cauterize Wounds.
  • Players in the vicinity of Foreman Feldspar suffer Fire damage as long as they are close to him.
  • Foreman Feldspar targets random players with his Pyroclasm ability.
  • Every time the Heart of the Mountain reaches 100 Energy, he will cast Blast.
  • Slag Elementals pick targets at random to fixate on and attack.
  • Position enemies so that they are not protected by Security Guards' Defense ability.
  • Slag Elementals fixate on random players, and cannot be taunted.
  • When facing the Heart of the Mountain, take turns tanking in order to manage your stacks of Tempered and Heat.

Encounter phases

Adventure Guide says

  1. Stage One: Sabotage Players must disable the Heat Regulators located on each side of the Blast Furnace to disable it.
  2. The Blast Furnace
  3. Get in the Fight! In Mythic Difficulty, the Bellows Operators will stop operating the bellows of the furnace and engage players in melee combat after reaching 50% health remaining.
  4. Stage Two: The Heart Exposed The Heart of the Mountain escapes from the Blast Furnace! Primal Elementalists join the fight in an effort to keep the Heart of the Mountain from destroying everything.
  5. The Blast Furnace
  6. Stage Three: Freedom! With all of the Primal Elementalists defeated, the Heart of the Mountain attacks everything in sight.

Tank mechanics

Adventure Guide says

  • Position enemies so that they are not protected by Security Guards' Defense ability.
  • Slag Elementals fixate on random players, and cannot be taunted.
  • When facing the Heart of the Mountain, take turns tanking in order to manage your stacks of Tempered and Heat.

Healer mechanics

Adventure Guide says

  • Players in the vicinity of Foreman Feldspar suffer Fire damage as long as they are close to him.
  • Foreman Feldspar targets random players with his Pyroclasm ability.
  • Every time the Heart of the Mountain reaches 100 Energy, he will cast Blast.
  • Slag Elementals pick targets at random to fixate on and attack.

DPS mechanics

Adventure Guide says

  • Furnace Engineers attach bombs to random targets. Detonate these bombs near a Heat Regulator to damage them.
  • Defeat Slag Elementals near Primal Elementalists to temporarily disrupt their protective shield.
  • Interrupt Firecallers' Cauterize Wounds.

Boss abilities

AbilityAdventure GuideNotes
Blast
Electrocution
Repair
Bomb
Drop Lit Bombs
Loading
Defense
Slay Elemental
Pyroclasm
Rupture
Hot Blooded
Melt Armor
Slag Pool
Damage Shield
Reactive Earth Shield
Cauterize Wounds
Lava Burst
Volatile Fire
Erupt
Burn
FixateSlag Elementals fixate on a random target, focusing their spells on the victim.
Slag Bomb
Hardened Slag
Tempered
Heat
Melt
Advertisement

Loot

Every name is a TheWoWDB item page. Hover the row for the first-party tooltip.

Arcanoshatter LeggingsNHMAshlink LegguardsLFRBlackhand's LegguardsNHMBlacksteel LegplatesLFRBlast Furnace DoorNHMBlast-Proof CowlNHMBracers of Searing HeatLFRBracers of Spattered SteelNHMChest of Heaving BellowsLFRCrescent of Living MagmaNHMEbonflame LeggingsLFRElementalist's Shielding TalismanNHMEngineer's Grounded GorgetNHMFeldspar's Control ChokerNHMFirecaller's Scorched SealLFRFleshmelter BracersNHMFlickering Lantern WispLFRFurnace Tender's TreadsNHMFuryheart TalismanLFRGauntlets of ElectrocutionLFRGrips of the Ruptured FurnaceLFRLava-Dipped GreathelmNHMLeggings of the Iron ConquerorNHMLeggings of the Iron ProtectorNHMLeggings of the Iron VanquisherNHMLegplates of Guiding LightNHMLegwraps of the Somber GazeNHMLiving Wood LegguardsNHMMouth of The FuryNHMOgreskull Boneplate GreavesNHMPoisoner's LegguardsNHMPyroclastic HoodLFRRaging Pyroclasm LeggingsLFRRylakstalker's LegguardsNHMShadow Council's LeggingsNHMSlagstomper TreadsNHMSootfur LegwrapsLFRSoul Priest's LeggingsNHMSpaulders of Tempered FuryLFRSpire of Pyroclastic FlameLFRWindspeaker's LegwrapsNHM

Mounts, toys, achievements, transmog

Only rows the journal loot table or an achievement title can prove for this encounter.

Mounts

Ironhoof Destroyer

Achievements

Mythic: Beastlord Darmac · Mythic: Flamebender Ka'graz · Mythic: Gruul · Mythic: Hans'gar and Franzok · Mythic: Kromog · Mythic: Operator Thogar · Mythic: Oregorger

Entrance and instance

Blackrock Foundry is a raid in the Adventure Guide. See the Blackrock Foundry database page for the raw journal, map, and loot grid. This guide does not invent coordinates or a walking path.

Blackhand
Beastlord Darmac
Flamebender Ka'graz
Operator Thogar
Hans'gar and Franzok
Gruul
Kromog
Oregorger
The Iron Maidens

Player strategy

This page quotes the Adventure Guide. It does not add player strategy such as positioning, assignments, stack or spread calls, or cooldown timings unless that sentence is already in the journal.

Questions

What does the Adventure Guide say about The Blast Furnace?

The objective of this encounter is to destroy the Foundry's massive furnace.

How many abilities does The Blast Furnace have?

The current datamine lists 25 named abilities on the The Blast Furnace encounter.

What does The Blast Furnace drop?

The Adventure Guide lists 41 drops. Each name links to its TheWoWDB item page. The full table also lives on the Blackrock Foundry database page.

Does The Blast Furnace change on Heroic or Mythic?

The current Adventure Guide text for this encounter does not include separate Heroic or Mythic sentences we can quote. If a later client build adds them, they appear here automatically.

Does The Blast Furnace drop a mount?

The journal loot table includes Ironhoof Destroyer. Each links to its TheWoWDB mount page.

Where does this guide's text come from?

Quoted Adventure Guide sections come from TheWoWDB's retail datamine (client build 12.1.0.69587, ingested 2026-09-01). Player strategy such as positioning, assignments, and cooldown timings is omitted unless that sentence is already in the journal.

Source and build

This page quotes the Adventure Guide. It does not add player strategy such as positioning, assignments, stack or spread calls, or cooldown timings unless that sentence is already in the journal. Quoted sections come from TheWoWDB Adventure Guide datamine (client build 12.1.0.69587, ingested 2026-09-01). Ability names link to first-party spell pages. When a newer retail build is ingested, this page updates with it.