

In times with a high demand you can also let the empty or low level thralled furnaces run, if fuel or ressources are low you just use the most efficient thralled furnaces. Then you get your products faster and with a lower amount of burned fuel.

As you get your Thralls put them in order of their level into the furnaces, the same order you want to fill your furnaces with ressources. For a long time you might have more furnaces than Smelter-Thralls.This furnace could also be the Multi-Purpose-Furnace, where you also put in other stuff like Silverstone or Goldstone or Star Metal Ore.Crystals could also be a source for Salt/Food, but Salt could also be made from Stone which is easier to collect in masses.Put every Glass and Crystal into it to collect a suply of Glass Flasks (for Water Orb/ Orbs and Purified Water/Food). At least one furnace must have a Glass Flask Mold to be able to produce Glass Flasks.But if you struggle in early and mid game to upgrade to Improved Furnaces, then better stay with standard Furnaces and just build more of them. A bigger inventory is better to reduce a possible downtime of the furnace because you can put more stacks of stuff into it.Recipes, burn times and Thrall Benefits are the same in every type of furnace, the only thing that differs is the number of slots in its inventory.You can use a Furnace, an Improved Furnace and Improved Furnace (Kiln).This Guide gives you an overview over Furnaces and their use.
