OSRS Superheat Gold at Blast Furnace: Magic + Smithing XP Guide

Game screenshots and facts are cited from the Old School RuneScape Wiki (strategy, equipment, drops, and related pages). Writing is original editorial, not a copy of the wiki article.

Superheating gold ore into bars is one of the oldest dual-skill training tricks in Old School RuneScape. At level 43 Magic, the Superheat Item spell turns a single gold ore into a gold bar, granting both Magic and Smithing experience in the same game tick. When you add goldsmith gauntlets from the Family Crest quest, the Smithing experience jumps from 22.5 to 56.2 per bar, turning a simple spell into a serious two-for-one training method.

The Blast Furnace often gets mentioned in the same breath because it is already the go-to spot for fast gold bar smithing — but you do not need to use the furnace itself to superheat gold ore. Instead, the Blast Furnace area offers a bank chest, a convenient ore shop, and an active community on certain worlds. This guide breaks down the requirements, the exact XP maths, the profit and loss reality, and when paying for gold or a boosting service is the honest shortcut instead of grinding it yourself.

Who This Is For

This method suits main accounts that need both Magic and Smithing levels for quests, achievement diaries, or maxing. It is less attractive for ironmen because of the rune and ore supply, but it can still work if you have a stockpile from Mining or monster drops. You need at least 43 Magic and 40 Smithing to start, and you should have completed Family Crest to claim the goldsmith gauntlets. If you are below these levels, train the requirements first through standard methods like splashing or questing for Magic, and smelting or questing for Smithing.

The combination is especially valuable if you plan to reach 99 in both skills. The Superheat Item spell awards 53 Magic XP per cast, regardless of what ore you smelt, and gold ore is the best choice because of the gauntlets' huge Smithing XP multiplier. Unlike training Magic through High Level Alchemy and Smithing through Blast Furnace separately, superheating gold ore keeps both skills moving with one click.

Requirements and Setup

Before you start, gather everything. The most common mistake is forgetting the goldsmith gauntlets, which more than doubles your Smithing XP per bar. Here is the complete checklist:

If you plan to stand at the Blast Furnace location, you do not need to pay the 72,000 coins per hour dwarf fee just to cast Superheat Item — that fee only applies if you want the dwarves to operate the furnace for you. On official Blast Furnace worlds, the furnace is fully automated for that fee. On unofficial worlds such as 302 or 303, players operate the pump and other parts themselves for free, but the furnace may not be running unless enough people are helping. For superheating, none of that matters because you are not using the furnace at all; you can stand next to the bank chest or anywhere else that suits you.

How Superheat Item Works

Superheat Item is a standard spellbook utility spell. It consumes one nature rune and either four fire runes or one fire rune if you have a staff of fire equipped. It smelts one ore in your inventory into a bar without needing a furnace. The Magic XP is flat: 53 per cast, no matter what you smelt. The Smithing XP you receive is exactly what you would get from smelting that ore in a normal furnace — so for gold ore, that means 22.5 Smithing XP, or 56.2 if you are wearing goldsmith gauntlets.

The Maths of Each Cast

With goldsmith gauntlets equipped, a single cast of Superheat Item on gold ore gives you:

• 53 Magic XP
• 56.2 Smithing XP

That is a combined total of 109.2 XP for one click and one set of runes. If you cast 1,000 times in a session, you will earn 53,000 Magic XP and 56,200 Smithing XP. The exact casts per hour depend on how quickly you click and how well you manage your inventory, but even a relaxed pace of 1,200 casts per hour would produce around 63,600 Magic XP and 67,400 Smithing XP per hour. Always verify the live XP values on the wiki before committing to a long grind.

Blast Furnace Gold Smithing vs Superheat Gold Ore

If your only goal is Smithing XP, the Blast Furnace is famously efficient. With a full inventory of gold ore, goldsmith gauntlets, and a running furnace, you can process bars at a much faster Smithing XP rate than regular furnace smelting, because the Blast Furnace smelts all ores in your inventory in one cycle rather than one at a time. However, that method gives zero Magic XP. Superheat Item is slower for pure Smithing, but it adds Magic XP and bypasses the furnace mechanics entirely.

The table shows why many players choose superheat gold over pure Blast Furnace smithing when they need both skills. The combined XP per hour is lower than Blast Furnace Smithing alone, but you are effectively training two skills at once. Over a long grind, that can save dozens of hours compared to maxing Magic with alching and Smithing with Blast Furnace separately.

Efficient vs AFK Attention and the Pump

Superheat Item is not truly AFK — you must click for every cast, and the spell has a short animation that prevents casting as fast as you can click. Most players settle into a rhythm of clicking an ore in the inventory, then immediately clicking the spell again. The most efficient approach is to stand next to a bank, withdraw a full inventory of gold ore and a stack of nature runes, cast Superheat on each ore until the inventory is bars, deposit the bars, and repeat.

That process is more attentive than watching a YouTube video, but less frantic than Blast Furnace running. If you want a truly low-attention activity while you are at the Blast Furnace, consider operating the pump on an unofficial world. Pumping gives 2 Strength XP per game tick, which works out to roughly 12,000 Strength XP per hour with no Hitpoints XP. You can switch to the pump for a few minutes to rest your wrist, or use it as a slow AFK training method while chatting. The pump stops automatically after 100 minutes, and on world 302 or 303 there are usually enough people to keep the Blast Furnace running for smithing if you later decide to use the furnace itself.

Common Mistakes That Eat Your Profit

Superheating gold ore is not the most expensive Magic training method, but it can still drain your bank if you are careless. The biggest mistakes are easy to fix once you know them.

• Forgetting goldsmith gauntlets. Without them, you get only 22.5 Smithing XP per cast instead of 56.2. That turns a combined 109.2 XP into 75.5 XP per cast, a massive downgrade.
• Using an unnecessary number of fire runes. If you do not wear a fire staff, each cast costs four fire runes. Fire runes are cheap, but over tens of thousands of casts that adds up. A staff of fire reduces the cost to one fire rune.
• Paying the Blast Furnace fee when superheating. If you are only casting Superheat Item, you do not need to pay the dwarves. That 72k per hour is wasted unless you are actively using the furnace to smelt bars in bulk.
• Not checking nature rune and gold ore prices before you start. Profit or loss flips regularly. If nature runes spike or gold ore becomes expensive, the method can turn into a much bigger loss than expected.
• Buying too many supplies at once. Start with a small test batch of 1,000 casts to see the real XP rate and confirm the cost per cast before committing to 100k+ gold ore.

Time to 99: The Combined XP Tradeoff

Let's run the numbers on a realistic goal: taking Magic from level 43 to 99 using only Superheat Item on gold ore with goldsmith gauntlets. Level 43 Magic requires 50,339 XP, and level 99 requires 13,034,431 XP. The difference is 12,984,092 XP. Each cast gives 53 Magic XP, so you need approximately 245,000 casts.

Each of those casts also gives 56.2 Smithing XP. Over 245,000 casts, that totals about 13,769,000 Smithing XP. Level 99 Smithing requires 13,034,431 XP, so if you start at level 40 Smithing (37,224 XP), you would receive more than enough Smithing XP to reach 99 Smithing — with about 700k XP left over. In other words, training Magic from 43 to 99 with superheat gold ore alone will simultaneously take your Smithing from 40 to 99, assuming you had the gauntlets equipped the entire time.

That is an incredible two-for-one. If you trained Magic by High Level Alchemy and Smithing by Blast Furnace gold bars separately, you would need to spend time on two different grinds. The superheat method merges them, saving perhaps 30–50 hours depending on your efficiency. The tradeoff is gold: 245,000 casts requires 245,000 nature runes, 245,000 gold ore, and up to 980,000 fire runes without a staff, or 245,000 fire runes with a staff of fire. That is a significant upfront investment, and the gold bars you produce may not recover the full cost.

When Buying Gold Is the Honest Shortcut

There is no shame in admitting that 245,000 superheat casts is a lot of clicking. Many players reach level 70 or 80 Magic this way, realise the wrist strain is real, and decide to outsource the rest. Buying OSRS gold to fund faster methods like bursting or using a more expensive but more AFK Magic training method can be a sensible trade of money for time. Similarly, buying a Smithing boosting service for Blast Furnace gold bars can get you to 99 Smithing in a fraction of the time while you focus on Magic separately.

If you are going to spend real money, do it honestly. Use a reputable marketplace, compare live gold rates, and never share your password. A boosting service where a professional player trains your account for you is against the rules if it involves account sharing, so be aware of Jagex's terms. Buying gold to afford supplies is the safer route — it lets you keep control of your account and train at your own pace with better gear, more runes, and less stress.

Practical Next Step

Start small. Buy 1,000 gold ore, 1,000 nature runes, and a staff of fire. Equip your goldsmith gauntlets, set up your inventory, and head to the Blast Furnace bank or any bank with a close booth. Cast Superheat Item on each ore until the inventory is bars, deposit, repeat. Track your XP per hour with a client plugin or simply note the time for 1,000 casts. Check your profit or loss using live Grand Exchange prices. If the cost per hour is acceptable, scale up to 10,000 or 100,000 supplies.

If you need to fund the runes and gold ore, view live gold rates and decide whether buying gold is a better use of your time than earning it through slow money-makers. The goal is not to grind endlessly — it is to reach your Magic and Smithing targets efficiently and enjoy the game.

View live gold rates

Sources

• Magic on the OSRS Wiki
• Pump (Blast Furnace) on the OSRS Wiki