Editing v0.34:Glass furnace

{{quality|Exceptional|16:57, 13 January 2011 (UTC)}}
{{Furnace|name=Glass furnace|key=g|job=[[Glassmaking]]
|construction=
* [[Fire-safe]] [[building material]] (non-[[economic]])
|construction_job=
* [[Architecture]]
* [[Masonry]] or [[Metalsmithing]]
|use=
* [[Coke]] or [[Charcoal]] ([[Fuel]])
* [[Sand]] [[bag]]
* [[Pearlash]]
* Raw [[rock crystal]]
|production=
* Raw crystal [[glass]]
* Raw clear [[glass]]
* Raw green [[glass]]
* [[Block]]s
* [[Vial]]s
* [[Toy]]s
* [[Instrument]]s
* [[Goblet]]s
* [[Trap]] [[weapon]]s
* [[Window]]s
* [[Furniture]]
}}{{av}}

'''Glass furnaces''' are used to make raw [[glass]] (a [[gem]]), [[block]]s, and [[furniture]] items. All furniture made at a glass furnace can alternatively be made out of either [[metal]], [[stone]] or [[wood]], with the exception of [[window]]s, which can be made from gems.  Glass furnaces can also make various [[trade good]]s, and [[vial]]s used to make certain extracts at a [[Farmer's workshop]].

Glass furnaces can make goods from green glass, clear glass, and crystal glass. Green glass requires a bag of [[sand]], clear glass requires a bag of sand and [[pearlash]], and crystal glass requires raw [[rock crystal]]s and pearlash.  Raw rock crystals are a type of gem and are not available in most regions.

Some of the names of glass furniture are different. A glass [[door]] is called a [[door|portal]], a glass [[coffer]] is called a [[Container|box]], a glass [[pipe section]] is called a tube, and a glass [[cage]] is called a terrarium. Also, [[vial]]s can be produced at a glass furnace, each bag of sand resulting in 3 vials. Vials have the same function as flasks and waterskins, and can also hold extracts.

Glass furnaces are also needed to issue the "collect sand" order. This requires an empty [[bag]], an Item Hauler, and a [[Activity zone|zone]] designated for sand collection. As the "Collect Sand" order will prevent other tasks from being started until the sand is collected, it is often wise to build several additional glass furnaces, [[magma glass furnace|magma]] or otherwise, to use for the collection of sand.

Not all maps have a source of sand, but sand may be imported in small quantities. Caravans will also bring [[gem|raw glass]] (of all 3 types) for trade, which can be particularly useful for dealing with [[strange mood]]s.

{{Workshops}}