Glass ingots can be crafted in a Furnace by holding right-click on the furnace.

Cost: 10 Stone, 5 Brimstone

Stone and Brimstone are needed to make Glass Ingots at a Furnace.

A single stockpile can hold up to 16 Glass Ingots.

Glass Ingots are used in these Structures:

• Laboratory x4 Glass Ingot
• Machine Shop x1 Glass Ingot
• Window x1 Glass Ingot
• Double Window x1 Glass Ingot

Glass Ingots are used in these Kits:

• Artificer Kit x1 Glass Ingot
• Alchemist Kit x3 Glass Ingot