Machine
Furnace
A machine that smelts Scrap Metal and Metal Ore into Metal Ingots overnight. The ingot's purity depends on the ore in the mix and on flux.
- 200 Credits
- Value
- 8 kJ
- Power per night
- 1
- Smelts per night
- Universal, Furnace
- Modules
- 3 x 3
- Size
Each night with enough power the Furnace smelts once. It draws its power only on a night it smelts. It smelts only while the output has room for an ingot.
Purity starts at Low and rises with the share of Metal Ore in the smelt. Each full 100% of module Quality adds one level; the Blast module takes one level away.
A Flux Smelting Agent lifts that bonus to +1 when it is lower. The Basic agent is used up only then; the Advanced agent stays.
| Inputs | Purity | With flux |
|---|---|---|
| 2 Scrap Metal | Low | Fair |
| 1 Metal Ore + 1 Scrap Metal | Fair | High |
| 2 Metal Ore | High | Very High |
| Blast: 3 Scrap Metal | Very Low | Fair |
| Blast: 1 Metal Ore + 2 Scrap Metal | Very Low | Fair |
| Blast: 2 Metal Ore + 1 Scrap Metal | Low | High |
| Blast: 3 Metal Ore | Fair | Very High |
Ingot value by purity
- Perfect
- +200%
- Very High
- +50%
- High
- +25%
- Fair
- 0%
- Low
- -15%
- Very Low
- -25%
Perfect needs module Quality on top of flux.
The Furnace takes universal modules too. Performance does not change it: it smelts once per night.

