Furnace

Furnace

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	Furnace (1) plus contents
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

This article is about the block. For smelting processes and recipes, see Smelting. For other furnance, see Furnace (disambiguation).

	“	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

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

Natural generation

One furnace generates in every igloo.

Furnaces can be found in plains, desert, and some savanna village weaponsmiths. Furnaces also generate in some houses in snowy tundra villages, and in one of the taiga/snowy taiga‌^{[BE only]} village houses.

Obtaining

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

Block	Furnace
Hardness	3.5
Tool
Breaking time
Hand	17.5
Wooden	2.65
Stone	1.35
Iron	0.9
Diamond	0.7
Golden	0.45

Chest loot

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

Crafting

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

Furnaces cannot be pushed by pistons in Java Edition.

Smelting

Main article: Smelting

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

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

Crafting ingredient

Name	Ingredients	Crafting recipe	Description
Blast Furnace	Iron Ingot + Furnace + Smooth Stone
Minecart with Furnace	Furnace + Minecart		‌[Java Edition only]
Smoker	Any Log or Any Stripped Log or Any Wood or Any Stripped Wood + Furnace

Custom name

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

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

Sound	Subtitle	Namespaced ID	Subtitle ID	Source	Pitch	Volume	Attenuation distance
	Block breaking	block.stone.hit	subtitles.block.generic.hit	Blocks	0.5	0.25	16
	Block broken	block.stone.break	subtitles.block.generic.break	Blocks	0.8	1.0	16
	Block placed	block.stone.place	subtitles.block.generic.place	Blocks	0.8	1.0	16
	Footsteps	block.stone.step	subtitles.block.generic.footsteps	Blocks	1.0	0.15	16
	No subtitle	block.stone.fall	(Plays when fallen on from a height)	Blocks	0.75	0.5	16
	Furnace crackles	block.furnace.fire_crackle	subtitles.block.furnace.fire_crackle	?	?	?	16

Data values

ID

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

See also: Data values

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

See also: Block states

Java Edition:

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

Bedrock Edition:

Name	Default value	Allowed values	Description
facing_direction	2	0 1 2 3 4 5	The direction the furnace opening faces. Opposite from the direction the player faces when placing a furnace.

Block entity

See also: Block entity format

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.
      • Tags common to all items see Template:Nbt inherit/item/template
  •  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

Main article: Achievements

Icon	Achievement	In-game description	Actual requirements (if different)	Availability				Xbox points earned	Trophy type (PS)
				Xbox	PS	Bedrock	Nintendo
	Hot Topic	Construct a furnace out of eight stone blocks	Pick up a furnace from a crafting table output.	Yes	Yes	Yes	Yes	15G	Bronze
	Smelt Everything!	Connect three chests to a single furnace using three hoppers.		Xbox One	No	Yes	New 3DS	15G	—

Advancements

Main article: Advancements

Icon	Advancement	In-game description	Parent	Actual requirements (if different)	Namespaced ID
	Acquire Hardware	Smelt an iron ingot	Getting an Upgrade	Have an iron ingot in your inventory.	story/smelt_iron

History

Java Edition Indev
Indev 0.31		January 29, 2010			Prior 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.
Indev		February 19, 2010			Added furnaces.
		February 23, 2010			Cobblestone can now be smelted into stone.
Java Edition Infdev
March 20, 2010					Furnaces are now fully functional.
Java Edition Alpha
v1.0.14					Furnaces are now used to craft minecarts with furnaces.
v1.2.0		?			Furnaces now face towards the player when placed, rather than away.
Java Edition Beta
1.2					The top of furnaces now have a texture similar to cobblestone. They used to have a texture exactly the same as stone.
Java Edition
1.0.0		Beta 1.9 Prerelease			Furnaces no longer take as long to destroy.
1.2.4		release			Cats now try to sit on active furnaces.
1.2.5		pre			Shift-clicking can now be used to put items into furnaces more easily.
1.3.1		12w18a			Wooden tools now work in furnaces as one full furnace use.
		12w22a			Smelting 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 now been flipped from left to right, changing to .
1.4.2		12w39a			Previously, furnaces lit up blocks all around them, this snapshot has made furnaces light up blocks only in front of them. (images showing difference) Its light value has remained as 13, but the light is only emitted from the block's front surface.
		12w40a			The previous change to furnaces has now been reverted until the new lighting system can be optimized.
1.4.6		12w49a			When holding sneak, the player can now place blocks and items (like redstone, repeaters, and levers) directly onto furnaces.
1.5		13w02a			Furnaces renamed using an anvil now display the new name in their GUI where the normal name used to appear.
1.8		14w02a			When a furnace runs out of fuel, the smelting progress now pauses instead of resetting.
		14w04a			When a furnace runs out of fuel, the smelting progress now reverses at twice the speed of smelting.
		14w26a			Furnaces now allow only fuel or a single empty bucket in the fuel slot.
1.9		15w43a			A furnace now generates inside of igloos.
		15w49a			The lit_furnace block is no longer available as an item.
		15w50a			Added a sound to furnaces: block.furnace.fire_crackle
1.13		17w47a			The different block IDs for the furnace has now been merged into one ID.
					A lit block state for furnaces has now been added.
					Prior to The Flattening, these blocks' numeral IDs were 61 and 62.
		18w06a			Added recipe book for smelting using furnaces. It can only be used for the input slot.
1.14		18w43a			The texture of furnaces has now been changed.
		18w50a			Furnaces can now be used to craft blast furnaces and smokers.
Pocket Edition Alpha
0.3.2					Added furnaces, meaning that every available block and item can now be gathered, crafted or smelted into (no more unlimited items).
0.9.0		build 1			Furnaces now naturally spawn in villages.
0.11.0		build 3			Furnaces now drop one stack for each item instead of splitting them up.
0.15.0		build 1			Furnaces can now be moved by pistons.
0.16.0		build 1			A better description (Input , Fuel, Result) has now been added to furnaces for devices that do not use a controller.
Pocket Edition
1.0.0		alpha 0.17.0.1			A furnace now generates inside of igloos.
Bedrock Edition
1.10.0		beta 1.10.0.3			The texture of furnaces has now been changed.
					Furnaces can now be used to craft smokers and blast furnaces.
					Furnaces now generate in the new villages.
1.11.0		beta 1.11.0.1			Furnaces can now be found in snowy tundra village house chests.
Legacy Console Edition
TU1	CU1	1.0	Patch 1	1.0.1	Added furnaces.
TU12					Cats now try to sit on active furnaces, making them unusable. This is intended to annoy the player.
TU14		1.04			Wooden tools now work in furnaces as one full furnace use.
					When using lava as fuel inside furnaces, the player now recovers the bucket.
TU31	CU19	1.22	Patch 3		When 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.
TU53	CU43	1.49	Patch 23	1.0.3	More items can now be used as fuel in a furnace.
		1.90			The texture of furnaces has now been changed.
New Nintendo 3DS Edition
0.1.0					Added furnaces.

Issues

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

Trivia

• 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, smelting 100 items.
  • However, a block of coal is the best renewable fuel, smelting 80 items.

Gallery

• 

  A torch placed onto a furnace.

• 

  Naturally occurring furnaces in a village.

• 

  The furnace GUI for Java Edition.

References

Blocks

View at: Template:Blocks/content [edit]