Superheat Item

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This article is about the spell. For the Seren prayer, see Superheat Form.
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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. It takes four fire runes and one nature rune to cast. Fire runes are not needed if wielding a fire, lava, or steam staff. This spell can only be cast on core ores. Casting this spell creates only one bar, and cannot be cast upon noted ores. The ore amount required is the same as if you were smelting the bar in a furnace. 53 experience is rewarded in the Magic skill, and the normal Smithing experience is rewarded as if you were smithing the bar in a furnace.

The same Smithing level is required to superheat ore as the level required when smelting in a furnace. For example, your Smithing level must be 30 if you wish to superheat the ore for a mithril bar, and to superheat ore for a rune bar, your Smithing level must be 50.

Smelting a bar that requires coal is a little different, for you cannot click on the coal itself, but instead you must click on the primary ore for the bar that you wish to create. For example, to smelt a mithril bar, you must click on a mithril ore in your inventory in order to superheat a mithril bar.

Superheat Item cannot be used to make jewellery or cannonballs.

Casting at mines[edit | edit source]

Superheat item is sometimes used when creating bars that require more than 1 ore type (mithril, adamant, rune, orikalkum or necronium bars), as it can free up inventory space from multiple ores to a single slot for bars. If you plan to mine both ore types that goes into the bars, and your mining site has both, 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 one type and another trip to a different mine where the other ore is located. Eventually, a near-full inventory of bars can be banked. This method is particularly effective when used in conjunction with a ore box, allowing you superheat as many bars as possible and also bank a few more ores for smelting later.

Please do note that Superheating while mining interrupts actions.

Three-skill training[edit | edit source]

Using Superheat item, players can quickly train three skills (mining, smithing and magic). The lowest recommended type of ores to use is iron, however greater profit and experience gain rates may be possible with higher level bars, such as mithril, adamant, and rune, though this requires coal as well as the base ore to be mined. The player should equip a fire staff to cast superheat item cheaply and efficiently, requiring only nature runes in the inventory. The player should also equip the highest level pickaxe that they can use, or add it to their tool belt, so that the pick does not take up an inventory space.

First the player should find a mining site with all the desired ores, and an anvil nearby. The player then can mine a full inventory of ore and turn it into bars using Superheat item. Next, the player should use the nearby anvil to smith all of the bars into a stackable item, such as bolt tips, arrowheads, nails, or dart tips. Choosing to smith non-stackable items like swords or helms forces the player to either drop the items, which yields faster experience, but is not recommended especially for higher level items due to the cost, or banking the items, which can be profitable but yields much slower experience rates. Alternatively, the player may also wish to use the high level alchemy spell after smithing the bars for more magic experience, though this also reduces the speed of the mining and smithing experience gain.

Casting at a bank[edit | edit source]

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, adamant or rune bars per hour. 2500 gold bars per hour would be 132k magic experience and 56k smithing experience. 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.

Casting at artisans workshop[edit | edit source]

Making bars[edit | edit source]

Superheat item is also useful to cast at artisans workshop in conjunction with smelting gauntlets. By having 1 ore you want to smelt in your inventory you can cast superheat item on it and use ore from the ore bank and automatically deposit the bar into the bar bank.

This can allow for a faster and more relaxed superheating compared to using a bank.

Since smelting bars with a furnace takes 4 or 3 ticks depending on smithing level and 3 or 2 ticks when using superheat form this can be a faster method of making bars than using a furnace.

However it gets better, since casting superheat item doesn't interrupt actions you can make bars whilst training other skills, for example you can do fletching or herblore whilst casting superheat item to make some profit whilst training otherwise costly skills. You can even use a furnace and make bars with both superheat item and the furnace to make bars at an even faster rate. It also works while smithing items.

Re-heating items[edit | edit source]

Another use of superheat item is re-heating your items whilst smithing without the usage of a forge and without interrupting your smithing. Each cast on an Unfinished Smithing Item refills its heat value by 33%.

Re-heating items with superheat item every 2 ticks with the perk of the smithing cape allows for high experience per hour.

Costs of making bars[edit | edit source]

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).

To reduce the cost per XP for both smithing and magic while using gold, one may consider crafting the gold bars into gold bracelets. Not only does this reduce the cost of superheating gold significantly, but one also receives a fair chunk of crafting experience, especially if superheating in low amounts.

Type of bar Material cost Profit Profit / Magic xp Profit / Smithing xp
Bronze 651 -167 -3.15 -167
Iron 1,226 -364 -6.87 -182
Steel 907 -23 -0.43 -7.67
Silver 480 -277 -5.23 -92.33
Gold 711 50 0.94 7.14
Mithril 673 -148 -2.79 -29.6
Adamant 1,801 -93 -1.75 -13.29
Rune 2,815 -238 -4.49 -23.8
Orikalkum 3,218 -217 -4.09 -16.69
Necronium 4,630 -124 -2.34 -7.29
Bane 5,454 -359 -6.77 -17.1
Elder rune 9,280 -39 -0.74 -1.5

Recommendations[edit | edit source]

Don't forget to wield a staff of fire, or other staff that provides unlimited fire runes such as an elemental battlestaff, fire battlestaff, mystic fire staff, lava battlestaff or steam battlestaff.

Adding Superheat Item to an action bar slot can speed up the process greatly, especially when using a keybind to access the action bar.

When using the action bar, repeatedly casting the spell on the last ore in the inventory (most bottom-right slot) will start creating bars from the top, so you will not need to move your cursor to each ore individually, saving some time.

Use a quiet bank, where there are few other players around, as this can decrease the load on the game engine, thereby reducing lag and fewer errors while casting (ie, clicking to cast the spell without it actually casting).

Update history[edit | edit source]

The update history project is a work-in-progress - not all updates to this topic may be covered below. See here for how to help out!
  • patch 28 January 2019 (Update):
    • You can once again super heat iron ores.
  • patch 21 January 2019 (Update):
    • While superheating you won't lose more bars than intended anymore.
    • Using superheat Item works as expected with Smelting gauntlets.
  • patch 7 January 2019 (Update):
    • The smithing skillcape gives a smithing buff whenever the item is reheated. This is especially effective (but expensive) with the superheat item spell.

Trivia[edit | edit source]

A player failing to cast Superheat Item, a result of the spell being attempted on a non-ore item
  • 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.
  • When you cast Superheat Item on iron ore while you have a coal and 2 iron ores 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.
  • Casting the spell while mining will not interrupt the process of mining.
  • Players who have earned the Explorer's ring 4 can use this spell for free 27 times each day.
  • Attempting to cast Superheat item on a non-ore object will result in the message Superheating that item doesn't do anything.
  • If you try this spell on an Elemental ore, then it will result in the message Even this spell is not hot enough to heat this item.