Steel furnace
Steel furnaces provide more advanced smelting capabilities resulting in higher smelting speed and therefore are more efficient use of the given fuel.
| Recipe: | + + => | 
| Smelting speed: | 1 | 
| Max energy: | 180 W (Burner) | 
Interface
- Resources and stock
 - Current smelting progress
 - Finished products
 - Current Fuel, remaining stock, and time when next item is removed from stock.