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Furnace
v50.14 · v0.47.05 This article is about the current version of DF.Note that some content may still need to be updated. |
Furnace is an umbrella term for different related workshops that heat materials for different purposes. While a "wood furnace" may be the most basic of these, the list includes smelters and kilns. These different workshops often produce only intermediary products, items that are then used to create something else for the final product.
Every furnace-type workshop must be built from fire-safe materials, and be designed by a building designer before construction.
Jobs at a furnace generally require fuel or, in the case of magma furnaces, the heat from magma - if the latter, they do not use up any magma but merely must be placed over it. To operate, magma version furnaces must be placed with one of their edge tiles above magma with depth of 4 or more. This can be accomplished by digging a channel for the magma, or hanging it directly over an open magma source.
Note that magma versions are not operable without magma. If the magma source fails, they cannot be used with fuel. If the magma depth falls below "depth = 4" at any time during operation (even for a single moment), any and all current job(s) will be cancelled in that workshop.
All furnaces are constructed using the Furnaces sub-menu (via b, e ).
See main articles for a full discussion of specific workshops, especially of magma versions.
Wood furnace
Turns wood logs into ash or charcoal.
Smelter
Extracts metals from their ores, and produces coke from raw coal.
- Shortcut: b, e, s
- Materials used: bituminous coal, lignite, ore, metal bars, flux, fuel (and metal objects to be melted)
- Items made: coke, metal bars
- Feeds into: Forges
Magma smelter
- Shortcut: b, e, l
Note: The only time the magma version uses charcoal or coke is in the recipe for pig iron and steel production.
Glass furnace
Turns raw sand into glass items.
- Shortcut: b, e, g
- Materials used: sand, pearlash, rock crystal, fuel
- Items made: glass objects
- Glass objects are final products
Magma glass furnace
- Shortcut: b, e, a
Magma glass furnaces use only magma as a heat source and require no additional fuel. They produce the same objects as a regular glass furnace.
Kiln
Used to fire clay into items, and to glaze some types of clay items. It also is used to produce gypsum plaster, pearlash, and quicklime.
- Shortcut: b, e, k
- Materials used: potash, ash, cassiterite, clay, clay loam, sandy clay, silty clay, fire clay, kaolinite, gypsum, alabaster, selenite, satinspar, fuel
- Items made: ceramic/clay items, pearlash and plaster powder
- Feeds into: pearlash for higher quality glass production
- Plaster powder is a final product used by healthcare professionals.
- Ceramic/clay (earthenware, stoneware, and porcelain) items are final products.
Magma kiln
- Shortcut: b, e, n
Functions just like a regular kiln, but uses magma instead of fuel.
"Furnace" in other Languages 
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Workshops  b o |
Ashery · Bowyer · Carpenter · Crafts · Jeweler · Stoneworker · Mechanic · Metalsmith's forge (Magma) · Screw press · Siege workshop · Soap shop |
|---|---|
Clothing and Leather bo l | |
Farming bo f | |
Furnaces bo u | |
| Other | |
| Furniture | |
|---|---|
| Tools | |
| Access | |
| Constructions | |
| Machine and trap parts |
Axle • Gear assembly • Lever • Mechanism • Millstone • Pipe section • Pressure plate • Roller • Screw pump • Support • Trap • Water wheel • Windmill |
| Other buildings | |
| Related articles | |