Superheat Item



Superheat Item is a non-combat Magic spell used to smelt ore without a furnace. It can be used by both free and member players. While wielding a fire, lava, or steam staff, it takes one Nature rune per cast. There is no cast-x option and each cast transforms one bar. Noted ores cannot be superheated. The same amount of coal is used when superheating as used when smelting the same type of bar in a furnace.

To cast superheat item on a bar, the same Smithing level required to smelt the bar using a furnace is needed. For example, level 50 smithing is required to superheat a mithril bar, and level 85 smithing is required to superheat a Rune bar. Each cast gives 53 magic experience plus the smithing experience for smelting the bar. In order to smelt a bar that uses more than 2 types of ores (besides bronze) just click on the ore of the bar that you are Superheating (mithril ore for mithril bar etc). As long as you have the correct ores in your inventory, it should work.

Superheat item guarantees 100% success for smelting an iron ore into an iron bar.

Superheat item can be used to smelt gold and silver bars as well as regular metal bars that can be made into armour. You cannot make jewellery with Superheat item, however. To get the full 56.2 smithing experience per ore from superheating gold ores, you must be wearing Goldsmithing gauntlets.

Casting at mines
Superheat item is sometimes used when mining coal and either iron, mithril, or adamantite. Superheat item can free up inventory space by using up coal to create bars. Eventually, a near-full inventory of bars can be banked.

Players also sometimes mine gold at the Living Rock Caverns and superheat it while mining.

It is argued that it is most beneficial with Iron as it gives 100% success (instead of 50%-80%), so this means less mining/bank/furnace trips. See this article.

Other factors to be considered for any ore is weight and running. The bars weigh slightly less than the ore, so you can run for longer. But you can carry 2 fewer bars to the bank. (The Staff/Pickaxe + Nature Rune(s))

If you plan to mine the coal as well as the metal that goes into the bars, and your mining site has both coal and the relevant metal, the timesavings could be considerable. An almost full inventory of bars could be made in one trip rather than requiring one trip for an inventory of ore and several loads more for the coal to smelt it with.

Another possibility is to cast at Coal Trucks. Example using mithril: Instead of 5 to 7 trips to empty the coal trucks in the Seer's Village Bank, you can take 22 Mithril Ore, Nature Runes and an equipped Fire Staff or better and leave 4 slots open, plus the space for your pickaxe. Repeatedly fill the slots from the coal trucks and cast Superheat Item. In this way only two trips to the bank are required for mithril.

Casting at a bank
Superheat item can be useful to cast at a bank to train magic and smithing. Ores are repeatedly withdrawn, superheated, then the bars banked.

Superheat item can be cast 1 per 2 game ticks (1.2 seconds), which is much faster than High Level Alchemy, which takes 5 game ticks (3.0 seconds) per cast. Although High Level Alchemy gives more magic experience per cast, it is possible to gain more magic experience per hour superheating iron or gold than by high alching.

Superheating at a bank, it is possible to use Superheat item to smelt approximately 2500 iron bars per hour, 2500 gold bars per hour, 1600 mithril bars per hour, 1300 adamant bars per hour, or 1200 Rune bars per hour. 2500 gold bars per hour would be 132k magic experience and 56k smithing experience(140K if wearing gauntlets). Rates are subject to change from person to person.

Some players consider superheating at a bank to be too expensive due to the cost of the nature runes, while other players consider the cost to be worth the fast experience in two skills. However the need to stay at a bank to superheat may attract players to cast High Level Alchemy.

Costs of making bars
See also:Superheat Item Calculator

The data in this table is based on the current Grand Exchange prices. It is accurate assuming all the ore and nature runes are bought from the Grand Exchange and the bar is sold afterwards. However, profit can be made by several ores if you mine them yourself, make bank runs, and then superheat all of them at once at the GE. That way you can sell the bars as you go if you choose and use part of the money to buy new nature runes (you should already have a staff of fire equipped).

Recommendations for Usage Arrange your inventory so that the Iron Ore is in the same spot as the Superheat Item spell, meaning very little mouse movement. Don't forget to wield your Fire Staff and leave a spot for your Nature Runes.

Use a quiet bank (not many people running around) as this decreases the load on the Java engine. This results in fewer errors.

For Steel Bars: Leave Nature Runes in Inventory, set your Bank's withdraw x value to 9, remove 9 Iron first, then Remove All coal - it fills the rest of your inventory. This takes two mouse clicks. However when doing this make sure that you withdraw 9 iron ores instead of 10, which would be directly below the list when withdrawing. Alternately you could set your withdraw x amount to 18, and then withdraw the coal first.

Note: The prices used by this table might be outdated by up to a day.

Trivia

 * A graphical glitch may occur when using this spell multiple times in a row or if you cast it again before you have finished the first cast in which the animation occurs, without the player moving their arms. This glitch is prevalent in many other manually operated, repeatable spells including High level alchemy and jewellery enchants.
 * The name Superheat Item is a misnomer because in physics, superheating is the phenomenon in which a liquid is heated to a temperature higher than its boiling point, without boiling. Technically smelting an ore into a refined form does not superheat the item.
 * Coal cannot be superheated.
 * When you cast Superheat Item on iron ore while you have two coal in your inventory, it will only produce a steel bar, NOT an iron bar. However, if you only have an iron ore in your inventory, it will automatically produce an Iron bar.
 * One can (almost) double the amount of bars made per inventory by using the coal bag (a reward from Dungeoneering bought for 4,000 tokens at Daemonheim).
 * Casting the spell while mining will not interrupt the process of mining.
 * Players can take advantage of this spell to turn their ores into bars faster by casting it while smelting them at a furnace at the same time. Not recommended with bars above steel because of the inability to hold many supplies.
 * Players who have earned the Explorer's ring 4 can use this spell for free 27 times each day.
 * The "Superheat Item" can be used outside of the inventory.
 * The "Superheat Item" spell is classified as a "skill spell" whilst the "Alchemy spell" is a "miscellaneous spell".