The Blast Furnace is one of the most efficient ways to smelt ores and train Smithing in Old School RuneScape (OSRS). Whether you're looking to make a profit or level up your Smithing, the Blast Furnace offers a unique and rewarding experience. However, it does come with some prerequisites and requires some preparation before you can fully benefit from it. This guide will walk you through everything you need to know to get started with the Blast Furnace, from the requirements to how to use it efficiently.

Blast Furnace Requirements in OSRS

Before you can use the Blast Furnace, there are several key requirements you need to meet. These will allow you to access the furnace and get the most out of this powerful Smithing tool.

1. Accessing Keldagrim

To begin using the Blast Furnace, you need to access Keldagrim, the city where the furnace is located. To do this, you'll need to start and complete The Giant Dwarf quest, which grants you access to the city.

2. Smithing Level

The Blast Furnace requires a minimum of 60 Smithing to use the furnace without any boosts. If you don't have 60 Smithing, you can still use the furnace by paying 2,500 GP to the Blast Furnace foreman for a 10-minute session. This payment method is relatively expensive, so it's best to work towards reaching 60 Smithing to avoid these fees.

3. Ring of Charos (a)

To reduce the entrance fee and make your furnace usage more cost-effective, it's recommended to obtain the Ring of Charos (a). This ring lowers the Blast Furnace foreman's fee significantly. However, be cautious: if you choose to pay the foreman's fee directly, the Ring's effect will be nullified, so always wear the ring if you want to make use of its benefits. You can obtain the Ring of Charos (a) during the Creature of Fenkenstrain quest.

4. Ice Gloves

Using Ice Gloves while working at the Blast Furnace is highly recommended. These gloves help cool your bars much more efficiently than using water-filled buckets, saving you both time and inventory space. Ice Gloves are especially useful when dealing with the bar dispenser, as they allow you to grab the hot bars without having to stop to cool them manually.

How to Get to the Blast Furnace in OSRS

Once you have access to Keldagrim, there are several ways to reach the Blast Furnace. Keep in mind that this minigame is available in specific worlds (352, 355, 358, 386, and 387), so make sure you're playing on one of these worlds.

Travel Options:

Minecart Travel: Take a minecart ride from the Dwarven Mine (located near Ice Mountain) to Keldagrim.

Grand Exchange Shortcut: Use the shortcut located on the northwest wall of the Grand Exchange in Varrock to quickly access the Blast Furnace.

Minigame Group Finder: You can also use the minigame group finder to teleport directly to the Blast Furnace building, saving time.

How to Use the Blast Furnace in OSRS

Once you've arrived at the Blast Furnace, it's time to start using it. The Blast Furnace operates as a minigame with specific steps that need to be followed.

Steps to Use the Blast Furnace:

Deposit Your Ore:

Place your ores onto the conveyor belt that runs through the Blast Furnace.

Prepare Your Bar:

Run down the ramp and make sure you have either a bucket of water or Ice Gloves to cool down the smelted bars. If you're using Ice Gloves, you can bypass the bucket method entirely.

Cooldown the Bars:

After the ore has been smelted, you need to cool the resulting bars. Use your bucket of water or Ice Gloves to do this quickly.

Bank Your Bars:

Once the bars are cooled, store them in your bank. If you're trying to maximize your profit, be sure to check the current market prices of the bars you're smelting.

Tips for Efficiency:

Speed is Key: The more bars you can smelt within a certain time frame, the more experience and profit you'll gain. To maximize efficiency, wear weight-reducing gear to help you move faster while carrying out these steps.

Stamina Potions: If you're below 60 Smithing and paying the fee, make sure to bring Stamina Potions to keep your energy high.

Additional Considerations:

Fuel and Maintenance: The furnace requires regular maintenance, so make sure you or your teammates keep the fuel supply stocked. If the furnace is depleted, you won't be able to smelt ores until it's refueled.

Experience and Profit Per Hour

Using the Blast Furnace offers excellent experience rates for Smithing, as well as some profit depending on the ores and bars you smelt. Here's a breakdown of what you can expect:

Experience Rates:

Bronze Bars: 16,000-19,000 XP per hour

Iron Bars: 70,000-75,000 XP per hour

Steel Bars: 90,000-95,000 XP per hour

Silver Bars: 75,000-80,000 XP per hour

OSRS Gold Bars (with Goldsmith Gauntlets): 320,000-340,000 XP per hour

OSRS Gold Bars (without Goldsmith Gauntlets): 125,000-130,000 XP per hour

Mithril Bars: 99,000-105,000 XP per hour

Adamantite Bars: 90,000-100,000 XP per hour

Runite Bars: 92,000-105,000 XP per hour

Profit Rates:

Using the Blast Furnace is also a great way to make a profit. Here's what you can expect to earn per hour for different types of bars:

Iron Bars: 103,000-105,000 GP per hour

Steel Bars: 930,000 GP per hour

Mithril Bars: 620,000 GP per hour

Adamantite Bars: 1.4 million GP per hour

Runite Bars: 1.8 million GP per hour

Conclusion

The Blast Furnace is one of the best ways to train Smithing in Old School RuneScape. It offers excellent experience rates, and high profit potential, and is an integral part of the game's economy. To get the most out of this minigame, be sure to meet the required levels, complete the necessary quests, and optimize your gear and supplies. Whether you're looking to level up Smithing or make a significant profit, the Blast Furnace is an invaluable tool for OSRS players.