Furnace

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Furnace
Furnace.png
Lit Furnace.png
Transparent

Partial (when active)

Luminance

Yes (13) (when active)

Blast resistance

17.5

Hardness

3.5

Tool

Renewable

Yes

Stackable

Yes (64)

Flammable

No

Catches fire from lava

No

Drops
Block entity ID

See § Data values

Data values
Inactive state
dec: 61 hex: 3D bin: 111101
Active state
dec: 62 hex: 3E bin: 111110
Namespaced ID

See § Data values

Duncan Geere Mojang avatar.png

The main point of a furnace is to smelt things. Smelting requires fuel - usually coal or charcoal, and an object to be smelted. Pop those in the furnace and you'll see a progress bar for the smelting process which, when completed, yields a new object. Be careful which fuel you choose, because some are more efficient than others.

Duncan Geere[1]

A furnace is a block used to smelt blocks and items, converting them into other blocks or items.

Natural generation[edit]

Two furnaces can be found inside each plains and desert village weaponsmith, and one can be found inside each igloo.

Furnaces also generate in one of savanna weaponsmith houses, inside some houses in snowy tundra villages, in one of taiga and snowy taiga village medium houses.

Obtaining[edit]

Furnaces can be mined using any pickaxe. If mined without a pickaxe, it drops nothing. A furnace also drops when a minecart with furnace is broken.

Block Furnace
Hardness 3.5
Tool
Breaking time[note 1]
Hand 17.5
Wooden 2.65
Stone 1.35
Iron 0.9
Diamond 0.7
Golden 0.45
  1. Times are for unenchanted tools in seconds. For more information, see Haste § Instant mining.

Chest loot[edit]

Furnaces can be found in 9.9% of snowy village house chests in stacks of 1.

Crafting[edit]

Ingredients Crafting recipe
Cobblestone

The lit furnace can only be obtained in Java Edition with commands like /give @s minecraft:furnace{BlockStateTag:{lit:"true"}}, although it does not appear lit in the inventory. In Bedrock Edition, the lit furnace block can only be obtained by inventory editing. It always stays lit, despite containing no items.

Usage[edit]

Furnaces cannot be pushed by pistons.‌[Java and Legacy Console editions only]

Smelting[edit]

Smelting Recipe


The main purpose of furnaces is to allow for smelting. Its interface can be opened by pressing the use item button on it.

Light source[edit]

Furnaces emit a light level of 13 when active, as well as smoke and flame particles.

Crafting ingredient[edit]

Name Ingredients Crafting recipe
Blast Furnace Iron Ingot +
Furnace +
Smooth Stone

Minecart with Furnace Furnace +
Minecart

Smoker Any Log or
Any Stripped Log or
Any Wood or
Any Stripped Wood +
Furnace

Custom name[edit]

By default, the GUI of a furnace is labeled "Furnace", but this name can be customized by naming it in an anvil before placing it, or by changing the CustomName tag using the /data command.

Lock[edit]

In Java Edition, a furnace can be "locked" by setting its Lock tag using the /data command. If a furnace's Lock tag is not blank, the furnace cannot be opened unless the player is holding an item with the same name as the Lock tag's text. For example, to lock a furnace at (0,64,0) so that the furnace cannot be opened unless the player is holding an item named "Furnace Key", use /data merge block 0 64 0 {Lock:"Furnace Key"}.

Sounds[edit]

Sound Subtitle Namespaced ID Subtitle ID Source Pitch Volume Min. volume
Furnace crackles block.furnace.fire_crackle subtitles.block.furnace.fire_crackle ? ? ? ?

Data values[edit]

ID[edit]

Java Edition:

Furnace Namespaced ID
Block furnace
Block entity

Bedrock Edition:

Furnace Namespaced ID Numeric ID
Unlit block furnace 61
Lit block lit_furnace 62
Block entity Furnace -

Block data[edit]

In Bedrock Edition, furnaces use the following data values:

Bits Values
0x1
0x2
0x4

A three-bit field storing a value from 2 to 5:

  • 2: Furnace facing north
  • 3: Furnace facing south
  • 4: Furnace facing west
  • 5: Furnace facing east

Invalid values default to 2.

0x8 Unused.

Block states[edit]

Java Edition:

Name Default value Allowed values Description
facingnortheast
north
south
west
The direction the furnace opening faces.
The opposite from the direction the player faces while placing the furnace.
litfalsefalse
true
If the furnace is lit.

Bedrock Edition:

Name Default value Allowed values Description
facing_direction22
3
4
5
The direction the chest's latch is on.
Opposite from the direction the player faces when placing a chest.

Block entity[edit]

A furnace has a block entity associated with it that holds additional data about the block.

  • Block entity data
    • Tags common to all block entities see Template:Nbt inherit/blockentity/template
    •  CustomName: Optional. The name of this container in JSON text component, which display in its GUI where the default name ordinarily appears.
    •  Lock: Optional. When not blank, prevents the container from being opened unless the opener is holding an item whose name matches this string.
    •  Items: List of items in the container.
      • : An item in the furnace, including the slot tag:
        Slot 0: The item(s) being smelted.
        Slot 1: The item(s) to use as the next fuel source.
        Slot 2: The item(s) in the result slot.
    •  BurnTime: Number of ticks left before the current fuel runs out.
    •  CookTime: Number of ticks the item has been smelting for. The item finishes smelting when this value reaches 200 (10 seconds). Is reset to 0 if BurnTime reaches 0.
    •  CookTimeTotal: Number of ticks It takes for the item to be smelted.
    •  RecipeLocationN: N is the number of the recipe, starting at 0. The recipe name that has been used, used to calculate experience given to the player when taking out the resulting item.
    •  RecipeAmountN: N is the number of the recipe, starting at 0. How many times recipe N has been used, used to calculate experience given to the player when taking out the resulting item.
    •  RecipesUsedSize: How many recipes have been used, creates corresponding RecipeLocationN and RecipeAmountN tags, used to calculate experience given to the player when taking out the resulting item.

Achievements[edit]

Icon Achievement In-game description Actual requirements (if different) Availability Xbox points earned Trophy type (PS)
Xbox PS Bedrock Nintendo
Hot TopicConstruct a furnace out of eight stone blocksPick up a furnace from a crafting table output.YesYesYesYes15GBronze
Smelt Everything!Connect three chests to a single furnace using three hoppers.Xbox OneNoYesNew 3DS15G

Advancements[edit]

Icon Advancement In-game description Parent Actual requirements (if different) Internal ID
Advancement-plain-raw.png Acquire HardwareSmelt an iron ingotGetting an UpgradeHave an iron ingot in your inventory.minecraft:story/smelt_iron

History[edit]

Java Edition Indev
Indev 0.31January 29, 2010Prior to the addition of furnaces, items could be smelted by dropping them on the ground and then burning them with flint and steel. This was the only way to smelt ores.[2]
IndevFebruary 19, 2010Furnace Revision 1.png Added the furnace.
February 23, 2010The first smeltable item is cobblestone, which can be smelted into stone.
Java Edition Infdev
March 20, 2010Furnaces are now fully functional.
Java Edition Alpha
v1.0.14Furnaces are now used to craft minecarts with furnaces.
v1.2.0?Furnaces now face towards the player when placed,[3] rather than away.
Java Edition Beta
1.2Furnace Revision 2.png The top of furnaces now have a texture similar to cobblestone. They used to have a texture exactly the same as stone.
Java Edition
1.0.0Beta 1.9 PrereleaseFurnaces no longer take as long to destroy.
1.2.4Cats now try to sit on active furnaces.
1.2.5preShift-clicking can now be used to put items into furnaces more easily.
1.3.112w18aWooden tools now work in furnaces as one full furnace use.
12w22aSmelting various ores in furnaces now reward players with experience points.
When using lava as fuel inside a furnace, the player now recovers the bucket.
Inventory sprites for blocks have flipped from left to right, changing to .
1.4.212w39aPreviously, furnaces lit up blocks all around them, this snapshot has made furnaces light up blocks only in front of them.[4] (images showing difference) Its light value has remained as 13, but the light is only emitted from the block's front surface.
12w40aThe previous change has been reverted until the new lighting system can be optimized.
1.4.612w49aWhen holding sneak, the player can now place blocks and items (like redstone, repeaters, and levers) directly onto furnaces.
1.513w02aFurnaces renamed using an anvil now display the new name in their GUI where the normal name used to appear.
1.814w02aWhen a furnace runs out of fuel, the smelting progress now pauses instead of resetting.
14w04aWhen a furnace runs out of fuel, the smelting progress now reverses at twice the speed of smelting.
14w26aFurnaces now allow only fuel or a single empty bucket in the fuel slot.
1.915w43aA furnace now generates inside of igloos.
15w49aThe lit_furnace block is no longer available as an item.
15w50aAdded sound: block.furnace.fire_crackle
1.1317w47aThe different block IDs for the furnace got merged into one ID.
A lit block state for furnaces has been added.
Prior to The Flattening, these blocks' numeral IDs were 61 and 62.
18w06aAdded recipe book for smelting using furnaces. It can only be used for the input slot.
1.1418w43aFurnace.png Changed the texture of furnaces.
18w50aFurnaces can now be used to craft blast furnaces and smokers.
Pocket Edition Alpha
0.3.2Furnace Revision 2.png Furnaces added, meaning that every available block and item can now be gathered, crafted or smelted into (no more unlimited items).
0.9.0build 1Furnaces now naturally spawn in villages.
0.11.0build 3Furnaces now drop one stack for each item instead of splitting them up.
0.15.0build 1Furnaces can now be moved by pistons.
0.16.0build 1A better description (Input , Fuel, Result) has been added to furnaces for devices that do not use a controller.
Pocket Edition
1.0.0alpha 0.17.0.1A furnace now generates inside of igloos.
Bedrock Edition
1.10.0beta 1.10.0.3Furnace.png Changed the texture of furnaces.
Furnaces can now be used to craft smokers and blast furnaces.
Furnaces now generate in new villages.
1.11.0beta 1.11.0.1Furnaces can now be found in snowy tundra village house chests.
Legacy Console Edition
TU1CU11.0Patch 11.0.1Furnace Revision 2.png Added furnaces.
TU12Cats now try to sit on active furnaces, making them unusable. This is intended to annoy the player.
TU141.04Wooden tools now work in furnaces as one full furnace use.
When using lava as fuel inside furnaces, the player now recovers the bucket.
TU31CU191.22Patch 3When a furnace runs out of fuel, the smelting progress now reverses at twice the speed of smelting.
Furnaces now allow only fuel or a single empty bucket in the fuel slot.
TU53CU431.49Patch 231.0.3More items can now be used as fuel in a furnace.
PlayStation 4 Edition
1.90Furnace.png Changed the texture of furnaces.
New Nintendo 3DS Edition
0.1.0Furnace Revision 2.png Added furnaces.

Issues[edit]

Issues relating to "Furnace" are maintained on the bug tracker. Report issues there.

Trivia[edit]

  • Furnaces function as multiple real-world devices combined into one block: bloomeries and blast furnaces (for smelting ores), ovens (for baking and cooking), charcoal pits (for the charring of wood) and kilns (for baking of clay).
  • Tamed cats often sit on top of lit furnaces.
  • The word "furnace" comes from the Greek word fornax, which means oven.
  • A lava bucket is the most effective fuel to use.

Gallery[edit]

References[edit]