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The Smeltery is multi-block structure used in the creation of higher tier weapons and tools using metal and alloys. The Smeltery comes with its own in-game guide, "Mighty Smelting." It is used to smelt ores, ingots or blocks of almost any metal as well as Obsidian. Alloys include Manyullyn, Bronze, Alumite and Aluminum Brass. But beware, you can fall in and die in the smeltery, and it will leave a layer of blood in the smeltery. This can be poured out later, and used to make Congealed Blood.


The Smeltery is a multi-block construct requiring you to have at least 84 Seared Bricks, or 19 Seared Brick blocks, a Seared Tank, and a Smeltery Controller for a single-tiered Smeltery.


Smeltery base hole
Hole dug for seared brick base
KurzninjaAdded by Kurzninja
Begin construction by placing a 3x3 base of Seared Bricks. Typical Smeltery construction has the base laid into the ground rather than on top of the ground. 
Smeltery base placed
Smeltery base placed into hole.
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Smeltery walls
Smeltery walls constructed around base.
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Smeltery complete
Completed single tier Smeltery with Smeltery Controller and Seared Tank.
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Tall smeltery
Seven-tiered Smeltery with 63 processing slots.
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Add walls one layer above the Smeltery base in a 5x5 perimeter. The corners are not necessary for the functioning of the smeltery and may be left out. Any blocks placed in these corners will not count as a component of the Smeltery. (Ex. drains will not function)

To complete the Smeltery, replace one of the wall blocks with a Smeltery Controller, and another with a Seared Tank.The Smeltery Controller should begin glowing, indicating successful Smeltery construction. Right-clicking the Smeltery Controller will allow you to access the Smeltery GUI. If you have constructed your Smeltery properly, you should see a set of processing slots on the left of the GUI.

You can continue to add layers to your Smeltery walls. Every layer that you add will give you an additional 9 processing slots (9 slots for each 3x3 space inside the smeltery). The smeltery walls can be constructed out of Seared Brick, Seared Glass, or Seared Windows. The Seared Glass and Seared Windows allow you to see the contents of your Smeltery without having to open the Smeltery GUI. They also function as low storage tanks, holding up to 4 buckets of liquid.

You will also need to add Smeltery Drains and Faucets to your Smeltery. When you place a Smeltery Drain, you must be sure that the side with the smaller hole is facing outwards or the drain will not work. The side with the larger hole must have access to the inside of the tank. If your Smeltery is a 5x5 with no corners, you cannot place the drain in the empty corners; it must be placed in one of the walls. You can place the drains at any level up and down the Smeltery; however, keep in mind that they will require a Casting Basin or Casting Table placed directly underneath the faucet to work. These faucets will also pour into Buildcraft-compatible tanks and pipes. Liquid metal can also be sucked out by a wooden pipe from Buildcraft or fluiducts (formerly known as liquiducts) from Thermal Expansion.

How to useEdit

To use the Smeltery, you must first add some lava to the Seared Tank (right-clicking with a bucket of lava next to it, etc.). This will heat up the interior of the Smeltery to allow for metals processing. Once your Smeltery has some lava powering it, right-click on the Smeltery Controller to bring up its GUI.

The left side of the GUI are your processing slots, with 9 slots added for every layer of empty space inside your smeltery.

The middle of the GUI is the storage tank where the liquid metals are stored. This allows you to see how much liquid metal is inside the Smeltery, what kinds of metal, and in what order they will be drained (starting from the bottom). In 1.6 versions of TiC, you can change the order by clicking on the desired liquid.(unsupported in 1.5 versions)

The bar along the right side of the GUI is how much lava the Smeltery currently has left. 

You can place ores for smelting in the processing slots. Over time, the ores will heat up. A heat indicator next to each ore shows its temperature. When the temperature reaches the top, that ore will melt and its liquid metal will be added to the storage tank. 

To use the liquid metal, you must drain the liquid into a Casting Basin or a Casting Table. Place a Seared Faucet onto the small hole on a Smeltery Drain, and place a Casting Basin or Casting Table underneath the drain. To activate the Faucet, right-click on it. A Casting Basin will allow you to create blocks of metal equal to 9 ingots. The Casting Table will allow you to create casts out of Aluminum Brass or Gold to create other metal items using the casts you have previously made.

Storing your metalsEdit

If you want to keep your metals aside for later, or if you have less than 1 ingot in the Smeltery and would like to save it, place a tank below the Seared Faucet, or hook up a Buildcraft-compatible pipe to the Smeltery drain, and you can pull your molten metals out into a tank for later use.

To get your metals back into the tank, have a smeltery drain facing backwards. Make the side with the smaller hole face inside this time (in other words: place the Smeltery Drain while you are inside the smeltery), and hook your pipe or tank to the outside face of the smeltery drain. It will fill the smeltery back up again- no more wasting that half-ingot of Manyullyn!

  • Other methods:

-Satherian method: Place a Casting Channel on the Smeltery Drain, then the tank you want to drain out of will be placed one block up and one block over. The faucet is then placed on the tank and above the channel. [Note: using this only allows for one ingot to be transfered at a time]

-ThermX method: Remove one of the top 12 blocks of the Smeltery, and replace it with a drain facing up. The tank is then placed one block away and the faucet on the tank, over the drain.

Using these, it's possible to create a temporary storage buffer.

  • Molten metal to Smeltery: Satherian method
  • Molten metal to Smeltery: ThermX method
  • A storage buffer using Seared Glass

If using Fluiducts from Thermal Expansion, the Smeltery Drain does not have to be reversed—fluids can flow both ways. (This may also be true for other pipe-providing mods.) Fluids drained from the Smeltery are extracted from the bottom layers. Fluids inserted are added to the top. You can use this feature to cycle small amounts of liquids from the bottom to the top of the Smeltery by draining into a Fluiduct (long enough to contain all of that particular liquid) then reversing the Fluiduct to add it back on top of the other liquids. Repeat this process until the liquid you need is at the bottom. (If you use a Fluduct and some sort of tank instead of a single long Fluiduct, you may end up cycling two liquids instead of one—one in the tank and one in the Fluiduct.)


It is not recommended to try disassembling the Smeltery while you have molten metal(s) in it. Disassembling any part of the Smeltery can cause you to lose any or all of the liquid stored inside of it above the level of the block destroyed. Disassembling the Smeltery Controller will cause all liquid inside the smeltery to be lost permanently.

Neither is it recommended to have multiple metals within the Smeltery at once, unless purposely to create an Alloy. You could already have the other metals within the Smeltery, therefore causing your metal to be used up.

Start a Discussion Discussions about Smeltery

  • How do i select the ore's inside the smelter

    8 messages
    • I need to select the molten stuff in the smeltery controller. Coloured line appears around it then :) (using direwolf20 modpack 1.0.19)
    • Why won't anyone state the TCon version?
  • The Molten Ore

    4 messages
    • The version you have in FTB Unleashed may be a little outdated for this, but in current versions you can click on the liquid metal you want and...
    • Correct. I do not think any versions for 1.5 have that feature.

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