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Blast Furnace Requirements OSRS – Ultimate Guide to Smelting Success
The Blast Furnace in Old School RuneScape (OSRS) is a members-only minigame located in Keldagrim, offering one of the most efficient ways to smelt bars while using half the coal compared to regular furnaces. Whether you’re aiming to level up your Smithing or make a profit, understanding the Blast Furnace requirements and mechanics is essential. This comprehensive guide covers everything you need to know, from prerequisites to recommended items, ensuring you maximize your experience and efficiency.
The Blast Furnace is a cooperative minigame where players smelt ores into bars, primarily for high-tier metals like steel, mithril, adamantite, and runite. Its key advantage is the reduced coal requirement, making it cost-effective for smelting bars that demand significant coal. On designated Blast Furnace worlds, dwarves (Dumpy, Stumpy, Pumpy, Numpty, and Thumpy) operate the furnace mechanics, allowing solo play with a fee, while non-themed worlds require teamwork. This guide focuses on solo play requirements, as it’s the most popular approach.
Why Use the Blast Furnace?
- Reduced Coal Usage: Only half the coal is needed compared to standard furnaces.
- High XP Rates: Smelting gold bars with goldsmith gauntlets offers some of the fastest Smithing XP in OSRS.
- Profit Potential: Smelting certain bars, like adamantite or runite, can yield significant profits.
- Bulk Smelting: Process entire inventories at once, saving time.
Blast Furnace Requirements
To access and efficiently use the Blast Furnace, you need to meet specific quest, skill, and item requirements. Below, we break down the essentials and optional boosts to streamline your experience.
Quest Requirements
The primary requirement is starting The Giant Dwarf quest, which grants access to Keldagrim, the dwarven city housing the Blast Furnace. You don’t need to complete the quest, but you must progress until you can enter Keldagrim. The quest has the following requirements:
These are relatively low-level requirements, making the Blast Furnace accessible even to early-game players.
Skill Requirements
While you can start smelting at the Blast Furnace with any Smithing level, certain skills enhance efficiency or reduce costs:
| Skill | Level | Purpose |
|---|---|---|
| Smithing | 60 | Waives the 2,500-coin fee every 10 minutes; required to use nearby anvils. |
| Agility | 30 | Operate pedals (non-themed worlds); access Grand Exchange shortcut (21 Agility). |
| Strength | 30 | Operate the pump (non-themed worlds). |
| Crafting | 30 | Fix pipes (non-themed worlds). |
Note: On Blast Furnace worlds, these skills are irrelevant for solo play since dwarves handle the mechanics.
Fee Requirements
Using the Blast Furnace incurs costs, depending on your Smithing level and the world you’re on:
- Below 60 Smithing: Pay 2,500 coins every 10 minutes to the Blast Furnace Foreman. Equipping the Ring of Charos (a) and following the dialogue (1•3•2•3) reduces this to 1,250 coins.
- Blast Furnace Worlds: A 72,000-coin-per-hour fee (12 coins per tick) is deducted from the coffer near the bank chest, regardless of Smithing level.
Ensure you have sufficient coins in your inventory or coffer to avoid interruptions. The fee is time-based, so logging out pauses the deduction, but leaving the bank chest interface open still consumes coins.
Recommended Items for Efficiency
To optimize your Blast Furnace runs, certain items can drastically improve your experience rates, reduce costs, and save inventory space. Here’s a breakdown of the must-have gear.
Essential Items
- Coal Bag: Holds up to 27 coal, doubling your coal-carrying capacity. Obtainable from Prospector Percy’s Nugget Shop for 100 golden nuggets in the Motherlode Mine.
- Ice Gloves: Allow instant bar collection from the dispenser without cooling, saving time and inventory space. Earned from the Heroes’ Quest or by killing the Ice Queen.
- Stamina Potions: Restore run energy, crucial for continuous running between the bank, conveyor belt, and dispenser.
- Coins: For fees (2,500 every 10 minutes if below 60 Smithing; 72,000 per hour on themed worlds).
Optional but Helpful Items
- Goldsmith Gauntlets: Boost Smithing XP when smelting gold bars. Obtained from the Family Crest quest by bringing magic steel gauntlets to Avan.
- Weight-Reducing Clothing: Full Graceful outfit, Boots of Lightness, Spotted/Spottier Cape, or Penance Gloves reduce weight, minimizing stamina potion use.
- Ring of Endurance: Slightly improves run energy restoration, useful for long sessions.
- Bucket of Water: Cools bars if you lack ice gloves, but it’s less efficient.
Pro Tip: If using ice gloves, replace the bucket of water with an extra ore slot to maximize inventory efficiency.
How to Access the Blast Furnace
Getting to the Blast Furnace in Keldagrim is straightforward once you’ve started The Giant Dwarf. Here are the fastest travel methods:
Travel Methods
- Minigame Teleport: Available every 20 minutes after starting The Giant Dwarf, teleports you directly outside the Blast Furnace.
- Minecart: From the Grand Exchange (west side) or Dwarven Mines under Ice Mountain. Requires prior Keldagrim visit.
- Fairy Ring (DKS): Teleports near Keldagrim’s entrance, followed by a short walk southwest.
- Grand Exchange Shortcut: Use the underwall tunnel (21 Agility) northwest of the Grand Exchange, then take the minecart.
- Luck of the Dwarves Ring: Teleports to west Keldagrim, southeast of the bank.
The minigame teleport or minecart from the Grand Exchange are the most efficient options for repeated trips.
Blast Furnace Worlds
For solo play, use one of the 15 Blast Furnace worlds (e.g., 352, 355, 358, 386, 387), where dwarves operate the furnace for the 72,000-coin-per-hour fee. These worlds simplify the process, letting you focus on depositing ores and collecting bars. Check the OSRS world list for the full set of themed worlds.
Blast Furnace Mechanics and Tips
Understanding the Blast Furnace workflow is key to maximizing efficiency. Here’s how it works and some tips to optimize your runs.
How the Blast Furnace Works
The process involves depositing ores and coal on the conveyor belt, which feeds into the furnace. After smelting, bars appear in the bar dispenser, requiring cooling (via ice gloves or a bucket of water) before collection. A nearby bank chest allows quick inventory management. On Blast Furnace worlds, dwarves handle all mechanics, so you only need to:
- Deposit coins in the coffer (72,000/hour).
- Place coal and ore on the conveyor belt (coal first for bars requiring it).
- Collect bars from the dispenser using ice gloves or a bucket of water.
- Bank and repeat.
Smelting Strategies
Different bars require specific ore-to-coal ratios. Here’s a quick reference:
| Bar Type | Ore Needed | Coal Needed | Smithing Level |
|---|---|---|---|
| Steel | 1 Iron | 1 | 30 |
| Mithril | 1 Mithril | 2 | 50 |
| Adamantite | 1 Adamantite | 3 | 70 |
| Runite | 1 Runite | 4 | 85 |
| Gold | 1 Gold | 0 | 40 |
Hybrid Method: Combine gold ore with mithril, adamantite, or runite using a coal bag to balance XP and profit. Deposit 26 coal and 26 gold ore per trip, alternating with other ores.
Top Tips for Efficiency
- Preload Coal: Always deposit coal first to avoid smelting unintended iron bars.
- Use Ice Gloves: They save time and inventory space over buckets of water.
- Optimize Inventory: With ice gloves, coal bag, and stamina potion, you have 26 ore slots (25 if below 60 Smithing).
- Wear Graceful: Reduces weight, saving stamina potions and improving trip speed.
- Check GE Prices: Profitability depends on ore and bar prices, so use the Grand Exchange to plan your smelting.
By meeting the Blast Furnace requirements and using the recommended items and strategies, you’ll unlock one of OSRS’s most rewarding Smithing methods. Whether you’re chasing XP or gold, this minigame offers unparalleled efficiency. Start The Giant Dwarf, gear up, and head to Keldagrim to smelt your way to success!