Furnace

The Furnace is a crafting station that smelts raw ores into ingots, alloys, and other processed metals. It is one of the most essential stations in the game, required for producing nearly all metal components used in tool upgrades, building, vehicle construction, and advanced crafting. The Furnace has three tiers, each unlocking additional smelting recipes while retaining all recipes from previous tiers.

How to Obtain

The Furnace I blueprint is included in the Equipment Blueprint Pack, which is available for free from the General Store early in the game. This pack also includes the Cutter I and Charcoal Kiln blueprints. Once you have the blueprint, build the Furnace at a Worktable using 5 Stone.

To use the Furnace, place it on your farm, interact with it, select a recipe from the list, and provide the required ore and fuel. Each smelting batch takes approximately 6 seconds. Unlike the Brewing Barrel or Cutter, the Furnace processes items relatively quickly, so you generally do not need multiples of it.

Fuel

All smelting recipes require fuel in addition to the raw ore. The fuel type changes as you progress through Furnace tiers.

Charcoal is crafted at the Charcoal Kiln, which is obtained alongside the Furnace in the Equipment Blueprint Pack. A Charcoal Kiln converts Softwood and Fiber into Charcoal. The Charcoal Kiln is also used to produce Salt from Salt Brick and Fiber.

Furnace Tiers

The Furnace upgrades through three tiers. Upgrading is done by interacting with the Furnace and pressing the Upgrade button, provided you have the required materials and the tier blueprint unlocked.

Furnace I

The starting tier, available from the Equipment Blueprint Pack. Handles early-game smelting using Charcoal as fuel.

Copper Ingots are the first metal you will smelt. They are needed for tools like the Impulse Pickaxe, the Ore Analyzer, and various early-game equipment. Bronze (a Copper-Tin alloy) is used for the Bronze Pickaxe, which is required to mine Iron Ore in the Moonlit Forest.

Furnace II

The second tier is unlocked through the Crafter profession questline with Zerine. Progressing through the Apprentice and Junior Crafter trials unlocks the Furnace II blueprint at the General Store. Furnace II uses Coal instead of Charcoal for its new recipes.

Iron Ingots are the workhorse metal of mid-game. They feed into tools, building materials, vehicle parts, and dozens of crafting recipes. Gold Ingots are used for premium crafting, jewelry (excellent NPC gifts), and special structures like the Selective Breeding House.

Furnace III

The final tier, unlocked at the Intermediate or Senior Crafter level. Furnace III recipes require rare ores from the deepest zones of the Moonlit Forest.

These endgame materials are used in Expert-tier tools, the most powerful equipment, and late-game building projects. Aurorite Ingot is needed for the Aurorite Pickaxe, which can mine the rarest ores (Oilstone, Starflare Crystal, Diamond). Eternal Alloy is required for top-tier tools like the Electric Drill and Chainsaw.

Smelting Ratios

The general smelting ratio is 4:1 for common ores (four raw ore plus one Charcoal produces one ingot) and 5:1 for rare ores like Starflare Crystal and Diamond. The exact ratio varies by recipe. Copper Ingots specifically require 4 Copper Ore plus 1 Charcoal per ingot.

Processing Speed

The Furnace I (Stone Furnace) processes one batch in approximately 30 seconds of game time. Furnace II and III (sometimes called the Blast Furnace) cut processing time to approximately 15 seconds and handle larger batches. The faster speed at higher tiers makes bulk smelting significantly more efficient.

Tips

• Keep a stockpile of Charcoal and Coal. Running out of fuel in the middle of a smelting session is a common bottleneck. Build extra Charcoal Kilns if needed.

• Copper Ore and Tin Ore are found on the surface and in the early Moonlit Forest zones. You do not need to go deep for Furnace I materials.

• Prioritize the Crafter profession questline with Zerine to unlock Furnace II as early as possible. Iron Ingots are needed for a huge number of mid-game recipes.

• The Ore Analyzer is worth using before smelting. It has a 5 to 10% chance of producing rare bonus drops from raw ore, which can save mining trips.

• Unlike the Cutter and Brewing Barrel, the Furnace processes quickly enough that you rarely need more than one. One Furnace handles most smelting needs.

• Smelt all your raw ore before leaving the Moonlit Forest if you have a camp with a Furnace. Ingots stack efficiently and weigh less than raw ore in your inventory.