Compact and efficient smelting array for early game.<br>
Stone Furnace: Creates 2x fully saturated yellow belts<br> Steel Furnace: Creates 4x fully sutured yellow belts<br>
<b>Inputs:</b><br> 1x Lane of Coal<br> 4x Lane Ore
<b>Outputs:</b><br> 1x Lane of Coal<br> 2x Lane Plate (Stone Furnace) OR 4x Lane Plate (Steel furnace)