Glass Furnace

Glass furnaces are used to collect sand, make glass and make glass blocks, furniture and trade goods, including glass windows. Depending on the generated world, musical instrument components may also be made here.

There are 3 types of glass. Green glass requires a bag of sand, clear glass requires a bag of sand and pearlash, and crystal glass requires raw rock crystals and pearlash.

Some of the names of glass furniture are different. A glass door is called a portal, a glass coffer is called a box, a glass pipe section is called a tube, and a glass cage is called a terrarium. Also, vials 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.

Collecting sand requires an empty bag and a zone designated for sand collection. As the "Collect Sand" order will prevent other tasks from being started until the sand is collected, it is recommended to have several glass furnaces, some collecting sand and others doing everything else.

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

Labors: Glassmaking