O2/H2 Generator

From Space Engineers Wiki
Revision as of 18:35, 19 June 2021 by Vox Serico (talk | contribs) (Indicators: Condensed the status descriptions)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to: navigation, search
Oxygen Generator Icon.png
Large Ship / Station
O2/H2 Generator
Large Ship Icon.png




Dimensions (W,H,L)1,2,1
Mass2,587 kg
2,587,000 g
2,587,000,000 mg
2.587 t
Build time22 s
Inventory Volume4,000 L
4 m³
400 hL
Ice Consumption25 kg/s
Ice-to-Gas Ratio (O2)10 L/kg
Ice-to-Gas Ratio (H2)20 L/kg
Power Consumption500 kW
500,000 W
0.5 MW
Idle Power Consumption1 kW
1,000 W
1.0e-3 MW
Power Consumer GroupFactory
Is AirtightYes
PCU Cost50
BrowseLast edit: 2020-11-25
Oxygen Generator Small Icon.png
Small Ship
O2/H2 Generator
Small Ship Icon.png




Dimensions (W,H,L)3,3,2
Mass298.6 kg
298,600 g
298,600,000 mg
0.299 t
Build time14 s
Inventory Volume1,000 L
1 m³
100 hL
Ice Consumption5 kg/s
Ice-to-Gas Ratio (O2)10 L/kg
Ice-to-Gas Ratio (H2)20 L/kg
Power Consumption100 kW
100,000 W
0.1 MW
Idle Power Consumption1 kW
1,000 W
1.0e-3 MW
Power Consumer GroupFactory
Is AirtightPartially
PCU Cost50
BrowseLast edit: 2020-11-25


The Oxygen Generator is a functional Block available for Small Ships, Large Ships and Stations. It is used to process Ice into breathable Oxygen and Hydrogen fuel.


If connected to a Conveyor Network via one of the inventory access points, the Oxygen Generator can automatically pull in Ice from attached inventories to process. Oxygen and hydrogen generated will travel through the conveyor system, and will be stored in an Oxygen Tank or Hydrogen Tank. If there are no tanks with vacancy in the conveyor network, the Oxygen Generator will not process Ice.

The oxygen generator can be used to refill Oxygen and Hydrogen Bottles by placing empty or partly filled bottles into the O2 generators inventory and either clicking "Refill bottles" or activating the control panel option "Auto-Refill".


O2/H2 Generator
Color Status
Air Vent Front Indicator cyan.png Working - The generator is producing gas.
Air Vent Front Indicator Green.png Idle - The gas has nowhere to go.
Air Vent Front Indicator Yellow.png Stopped - The generator is out of Ice.
Air Vent Front Indicator Red.png Off - The generator is out of power or turned off.

Gas Generation

Oxygen and Hydrogen are produced at a 1:2 ratio. If tank space is available for both gases, both are produced at the same time. If space is only available for one of the gases, only that type is produced.

Note: The speed of the generator is unaffected by the assembler efficiency and the refinery speed world settings.

Gas Generation Rate
Grid Size Oxygen Hydrogen
Large 250 L/s 500 L/s
Small 50 L/s 100 L/s
Gas per kilogram of Ice
Only Oxygen Only Hydrogen Both
10 L O2 20 L H2 5 L O2 + 10 L H2


Oxygen Generator OxyGen01.jpg


  • Sometimes it may be wise to disable your oxygen generator when you don't need it. This is because it can generate excess amounts into your oxygen tanks. If your oxygen tanks are full, you cannot depressurize a room as there is no where for the oxygen to go.

Known Issues

See also


Update History

Update 01.074
  • Oxygen Generator block introduced
Update 01.105
  • Oxygen Generator now can also produce Hydrogen