Oxygen Furnace II
From Captain of Industry Wiki

Creates steel by blowing pure Oxygen under high-pressure into Molten Iron, lowering its carbon content.
| Construction | |
| Workers | |
| Electricity | |
| Maintenance | |
| Footprint | 7x5 |
| Required Research | Advanced Smelting |
| Designation | Metallurgy & Smelting |
| Variants | Oxygen Furnace |
The Oxygen Furnace II is an upgrade to the Oxygen Furnace machine. It features an identical footprint and input/output ports as its predecessor. The major difference is a new recipe that doubles the output and throughput but doesn't alter the oxygen requirement and only increases the exhaust produced by 50%. The new building demands are modest as well, with only 67% more workers, 60% more electricity, and 50% more maintenance needed.
Recipes
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| * Only available in the Supporter Edition | |