Bellows

The Bellows is an extension for the Furnace in your yard. Built against a furnace, it lets it make Lenses (8 Sand and 30 Fuel for 2) and Alchemy Flasks II (3 Alchemy Flasks I and 10 Fuel), and on a Furnace II also Golden ingots, 2 from 3 Golden nuggets. It costs 4 Wooden Planks, 4 Bronze Nails and 2 Leather Scrolls, and comes with the technology Bellows (30 red), which follows Iron Forge.

You build it from the yard’s build desk on the furnace’s bellows spot, beside the furnace, and it stands finished at once. Each furnace has one bellows spot and one spot for the Casting Table.