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Information accurate as of: 25211 Update

This article has a Legacy counterpart. Click here to go to the article.


The Furnace is a craftable item that can be used to smelt metals.

Usage[]

The Furnace can be used after it has been crafted and placed. To place the Furnace you must first craft it and move it to your Hotbar, from here you can move it around until the "Ghost Furnace" has turned Blue (Indicating it can be placed) Once the Furnace has been placed it can be operated by a player (Any number of players can operate it at the same time) and shows an empty 1x6 grid.

To use the Furnace a player must place Wood in it and ignite it.The furnace will burn up to two Wood and create the smelted version of the materials every 30 seconds. Players do not have to be near the Furnace for it to operate, and it will keep burning until it is turned off, runs out of fuel or if any item slot is filled and it cant find space for either the smelted material or charcoal. A byproduct of the process is Charcoal, which you need to make Gunpowder. Furnaces will smelt all slots simultaneously, so it is more efficient to smelt multiple stacks of the same ore at one time.

Crafting[]

The Furnace can be crafted with:

  • 50 low grade fuel
    • Each low grade fuel craft makes 4 low grade fuel. 13 crafts will make 52 low grade fuel which is enough to create the furnace. Each craft costs 3 animal fat and 1 cloth. Thus, 13 crafts will cost 39 animal fat and 13 cloth.
  • 100 wood
  • 200 stones

Repairing[]

The Furnace can be repaired with a Hammer:

  • 27 low grade fuel
  • 50 wood
  • 98 stones

The Furnace can be repaired with a Repair Bench:

  • 25 low grade fuel
  • 50 wood
  • 100 stones

Max Condition Loss = 20%

Smelting Rates[]

In Rust the conversion rates are usually 1:1.

Wood Burns at a rate of 30 wood per minute, or one wood every 2 seconds.

Unrefined Resource Smelts Into Unit Fuel Cost Yield per Minute Ore-Product Ratio
Metal Ore Metal Fragments 5 Wood 6 Metal Fragments 1:1
Sulfur Ore Sulfur 2.5 Wood 12 Sulfur 1:1
Wood Charcoal 1.33 Wood 22.5 Charcoal 4:3
High Quality Metal Ore High Quality Metal 10 Wood 3 High Quality Metal 1:1

Efficient Smelting[]

Metal Fragments[]

600 Metal Ore + 1000 Wood
Wood iconTransparent item
x1000
Metal Ore iconTransparent item
x200
Metal Ore iconTransparent item
x200
Metal Ore iconTransparent item
x200
=
Charcoal iconTransparent item
x750
Metal Fragments iconTransparent item
x600

Time to smelt: 33m20s

Yield:

600 Metal Fragments + 750 Charcoal

High Quality Metal[]

300 High Quality Metal Ore + 1000 Wood
Wood iconTransparent item
x1000
High Quality Metal Ore iconTransparent item
x100
High Quality Metal Ore iconTransparent item
x100
High Quality Metal Ore iconTransparent item
x100
=
Charcoal iconTransparent item
x750
High Quality Metal iconTransparent item
x300

Time to smelt: 33m20s

Yield:

300 High Quality Metal + 750 Charcoal

Sulfur[]

1000 Sulfur Ore + 835 Wood
Wood iconTransparent item
x835
Sulfur Ore iconTransparent item
x334
Sulfur Ore iconTransparent item
x333
Sulfur Ore iconTransparent item
x333
=
Charcoal iconTransparent item
x626
Sulfur iconTransparent item
x1000

Time to smelt: 27m50s

Yield:

1000 Sulfur + 626 Charcoal

Trivia[]

  • Empty cans of beans and Empty tuna cans can be cooked in a furnace.
  • The furnace is destructible and takes approximately 20 hits with a hatchet to break.
  • The furnace uses about 5x as much fuel as a Large Furnace when smelting efficiently.
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