Furnace

Furnace — crafting

Makes this item

Output

1 × Furnace

• Copper Ore
• Stone

• An external learning source is required; the complete unlock path is not established here.
• Equipment: Crafting menu; no workstation specified by this recipe.
• 20 × Copper Ore.

Heavy Furnace — crafting

Used as an ingredient

Output

1 × Heavy Furnace

• Heavy Furnace
• Iron Bar
• Stone

• An external learning source is required; the complete unlock path is not established here.
• Equipment: Crafting menu; no workstation specified by this recipe.
• 2 × Furnace.

Furnace → Copper Bar

Inputs / alternatives

5 × Copper Ore

Output candidates

Copper Bar × 1

Processing time

30 in-game minutes

• Input alternative: Copper Ore
• Output candidate: Copper Bar
• Additional consumption: Coal

• The first applicable machine rule wins. One valid output is selected; listed alternatives are not simultaneous yields.
• Additional consumption: 1 × Coal.

Furnace → Iron Bar

Inputs / alternatives

5 × Iron Ore

Output candidates

Iron Bar × 1

Processing time

120 in-game minutes

• Input alternative: Iron Ore
• Output candidate: Iron Bar
• Additional consumption: Coal

• The first applicable machine rule wins. One valid output is selected; listed alternatives are not simultaneous yields.
• Additional consumption: 1 × Coal.

Furnace → Gold Bar

Inputs / alternatives

5 × Gold Ore

Output candidates

Gold Bar × 1

Processing time

300 in-game minutes

• Input alternative: Gold Ore
• Output candidate: Gold Bar
• Additional consumption: Coal

• The first applicable machine rule wins. One valid output is selected; listed alternatives are not simultaneous yields.
• Additional consumption: 1 × Coal.

Furnace → Iridium Bar

Inputs / alternatives

5 × Iridium Ore

Output candidates

Iridium Bar × 1

Processing time

480 in-game minutes

• Input alternative: Iridium Ore
• Output candidate: Iridium Bar
• Additional consumption: Coal

• The first applicable machine rule wins. One valid output is selected; listed alternatives are not simultaneous yields.
• Additional consumption: 1 × Coal.

Furnace → Refined Quartz

Inputs / alternatives

1 × Quartz

Output candidates

Refined Quartz × 1

Processing time

90 in-game minutes

• Input alternative: Quartz
• Output candidate: Refined Quartz
• Additional consumption: Coal

• The first applicable machine rule wins. One valid output is selected; listed alternatives are not simultaneous yields.
• Additional consumption: 1 × Coal.

Furnace → Refined Quartz

Inputs / alternatives

1 × Fire Quartz

Output candidates

Refined Quartz × 3

Processing time

90 in-game minutes

• Input alternative: Fire Quartz
• Output candidate: Refined Quartz
• Additional consumption: Coal

• The first applicable machine rule wins. One valid output is selected; listed alternatives are not simultaneous yields.
• Additional consumption: 1 × Coal.

Blacksmith's — standard reward

Reward quantity

1

Donation slots

3 of 3 listed slots

• 1 × Copper Bar
• 1 × Iron Bar
• 1 × Gold Bar

• Standard template. Your save may use remixed selections; confirm the active in-game bundle before donating.

Blacksmith's — remixed reward possibility

Possible reward

1 × Furnace

• Remixed possibility, not an active-save checklist. Bundle sets, slot choices select which candidates appear.
• One alternative per grouped slot is selected; remaining slots follow the template.
• 3 selected slots required. The full candidate pool is not simultaneously required.

Engineer's — remixed reward possibility

Possible reward

2 × Furnace

• Remixed possibility, not an active-save checklist. Bundle sets, slot choices select which candidates appear.
• One alternative per grouped slot is selected; remaining slots follow the template.
• 3 selected slots required. The full candidate pool is not simultaneously required.