Put up to 8 Speed Upgrades into an Electrolytic Separator, and then us a Gas-Burning Generator to burn the Hydrogen to get your power back. This is a 100% efficient process (you get all of the power out that you put in, which is also why the Energy Upgrades do not lower the power usage the Electrolytic Separator, they just increase the amount of power the machine can store), so Oxygen is practically free once you've got your infrastructure set up. As was already mentioned, Gas Upgrades will lower the Oxygen Usage in the machine itself. Answer from VT-14 on reddit.com
Reddit
reddit.com › r/feedthebeast › [mekanism] is there a way to make mass amounts of oxygen?
r/feedthebeast on Reddit: [Mekanism] Is there a way to make mass amounts of oxygen?
December 5, 2018 -
I'm trying to set up a purification factory for our ore processing setup and I've built the elite tier upgraded version. The problem is it burns through so much oxygen. I've got 9 electrolytic separators going and it's still not enough. Is there any easier way to get mass amounts of the stuff?
Top answer 1 of 3
11
Put up to 8 Speed Upgrades into an Electrolytic Separator, and then us a Gas-Burning Generator to burn the Hydrogen to get your power back. This is a 100% efficient process (you get all of the power out that you put in, which is also why the Energy Upgrades do not lower the power usage the Electrolytic Separator, they just increase the amount of power the machine can store), so Oxygen is practically free once you've got your infrastructure set up. As was already mentioned, Gas Upgrades will lower the Oxygen Usage in the machine itself.
2 of 3
6
Speed upgrades in the Electrolytic Separator and Gas upgrades in the factory will do more for you than just spamming separators. Also, while some have mentioned burning hydrogen for an energy-neutral cycle, you can also take the hydrogen and do an Ethylene cycle for power-positive setup. It'll require a crusher, and feeding it some kind of plant matter (such as potatoes), and another machine to make the ethylene, but once built it is set-and-forget.
Feed The Beast Wiki
ftb.fandom.com › wiki › Electrolytic_Separator
Electrolytic Separator - Official Feed The Beast Wiki
The Electrolytic Separator is a block added by Mekanism. It is used to separate fluids into their component elements. ... The Electrolytic Separator (middle) decomposes water, delivered by an Electric Pump on the right, into hydrogen and oxygen.
questions about purification chamber / oxygen usage
is it normal for purification chamber to not accept anything but the basic tank of oxygen? (Ultimate tank full of oxygen does not go in the extra slot) if true to either of the above, is the only way to truly automate it is by inputting flint into the extra? **Forge: 31.1.49 ** Mekanism:Mekan... More on github.com
10
May 2, 2020Mekanism Help! | Feed The Beast - FTB Forum
I'm trying to do Mekanism ore tripling with advanced factories, all max speed and energy efficiency. Does anybody know how many electrolytic seperators that's going to take me? I'm currently using about 20 and I am nowhere near making enough oxygen for the purification factory :/ Any help... More on forum.feed-the-beast.com
Oxygen tanks not filling
Hi all, I am having issues with losing all my oxygen. Here is what is happening: I have an electrolytic separator generating hydrogen and oxygen, with elite pressurized tubes running to 3 gas tanks for each gas. The hydrogen then goes fr... More on github.com
3
July 13, 2019I need help with transporting oxygen in mekanism
The colors in the config menu correspond to the border of the slot/tank in the main UI. All of the sides are set to output hydrogen. Change them to the lighter blue color to output oxygen. More on reddit.com
9
10
February 4, 2023Videos
QIO
wiki.aidancbrady.com › w › index.php
Oxygen - Official Mekanism Wiki
Retrieved from "https://wiki.aidancbrady.com/w/index.php?title=Oxygen&oldid=935" Cookies help us deliver our services. By using our services, you agree to our use of cookies. Do you need a wiki for your Minecraft mod/gaming wiki? We'll host it for free! Contact us. Official Voltz Wiki ·
Mekanism Wiki
wiki.aidancbrady.com › wiki › Gases
Gases - Official Mekanism Wiki
Chemical Infuser using Oxygen and Sulfur Dioxide · Used by: Chemical Infuser to make Sulfuric Acid · Made by: Chemical Oxidizer using Salt · Rotary Condensentrator using Brine · Used by: Rotary Condensentrator to make Brine · Made by: Rotary Condensentrator using Water ·
YouTube
youtube.com › watch
How to get Hydrogen & Oxygen in Mekanism - YouTube
Complete tutorial for getting Hydrogen & Oxygen in the Mekanism mod for Minecraft, using the electrolytic separator machine.MEKANISM PLAYLIST - https://www.y...
Published August 7, 2024
GitHub
github.com › mekanism › Mekanism › issues › 6120
questions about purification chamber / oxygen usage · Issue #6120 · mekanism/Mekanism
May 2, 2020 - Issue description: is it normal for purification chamber to not have a gas input? is it normal for purification chamber to not accept anything but the basic tank of oxygen? (Ultimate tank full of oxygen does not go in the extra slot) if ...
Author mekanism
YouTube
youtube.com › redwoodsteve
How to build a infinite power/oxygen source in Mekanism version 10 - YouTube
Sorry i have not uploaded in a while!Mekanism infinite power and oxygen source
Published March 8, 2022 Views 4K
Mekanism Wiki
wiki.aidancbrady.com › wiki › Electrolytic_Separator
Electrolytic Separator - Official Mekanism Wiki
Typically the first application of the Electrolytic Separator is in the electrolyzing of water into Hydrogen and Oxygen.
Feed The Beast
forum.feed-the-beast.com › forums › feed the beast › mods › mod discussion
Mekanism Help! | Feed The Beast - FTB Forum
October 7, 2014 - The Mekanism Speed Upgrade wiki ... efficiency", which is either outdated or the product of a confused understanding. Purification presently takes 200 units of oxygen, regardless of speed....
GitHub
github.com › mekanism › Mekanism › issues › 5564
Oxygen tanks not filling · Issue #5564 · mekanism/Mekanism
July 13, 2019 - I have an electrolytic separator generating hydrogen and oxygen, with elite pressurized tubes running to 3 gas tanks for each gas. The hydrogen then goes from the 3 hydrogen tanks to a chemical infuser. This creates a gas buffer.
Author mekanism
Reddit
reddit.com › r/feedthebeast › i need help with transporting oxygen in mekanism
r/feedthebeast on Reddit: I need help with transporting oxygen in mekanism
February 4, 2023 - The colors in the config menu correspond to the border of the slot/tank in the main UI. All of the sides are set to output hydrogen. Change them to the lighter blue color to output oxygen.
YouTube
youtube.com › watch
Mekanism: Electrolytic Separator (how to get hydrogen + More) - YouTube
AboutPressCopyrightContact usCreatorsAdvertiseDevelopersTermsPrivacyPolicy & SafetyHow YouTube worksTest new featuresNFL Sunday Ticket · © 2026 Google LLC
Published December 25, 2022
YouTube
youtube.com › watch
HOW TO PUMP OXYGEN IN MEKANISM - YouTube
Learn how to make an oxygen pump in Mekanism. Learn step-by-step how to use items, obtain materials, and master the Mekanism mod in Minecraft. Optimize your ...
Published September 8, 2025
GitHub
github.com › mekanism › Mekanism › issues › 7693
The Electrolytic Separator can't output oxygen to the Purification Chamber · Issue #7693 · mekanism/Mekanism
January 2, 2023 - Issue description settings of my electrolytic separator, I out put the oxygen gas at the right, then I access the Basic Pressurized Tube at the right of machine, settings of my purification chamber, and all the interface is set to the "i...
Author mekanism
YouTube
youtube.com › zl
Mekanism in 60 Seconds: Electrolytic Separator - YouTube
Create Hydrogen (and other gases) using the Electrolytic Separator from Mekanism (Modded Minecraft/FTB) -- it won't take a minute!Hate long boring tutorials?...
Published December 2, 2020 Views 71K
Reddit
reddit.com › r/testpackpleaseignore › how can i get more oxygen out of mekanism?
r/TestPackPleaseIgnore on Reddit: How can I get more oxygen out of Mekanism?
August 2, 2014 -
My Advanced Factory set to purify can't keep up. Should I build more Electrolytic Separators or is the issue that the pressurized tubes can't hold all the oxygen flowing through? (I have 2 electrolytic separators currently).
Top answer 1 of 3
3
3 Separators barely yields enough Oxygen to keep a net gain while running a single Basic Purifying Factory with max upgrades. At least from my experience.
2 of 3
1
Are you venting or using all the hydrogen? If the hydrogen tank is full oxygen production stops. If you are already venting the hydrogen try adding another separator or two to the same oxygen line, the pressurized tube can handle plenty. You can also add some tanks between the separators and purifier to store extra gas when you're not processing. Also, I recommend the elite factory. I don't know if it's more efficient than advanced but I know it uses less gas per process than a basic factory. Lastly, make sure you set the factory to auto sort so it uses all its processing slots.
GitHub
github.com › mekanism › Mekanism › issues › 5421
Oxygen into PRC? · Issue #5421 · mekanism/Mekanism
April 20, 2019 - Issue description: Cannot get Oxygen in the PRC from a Gas tank. I've placed Oxygen tanks on every single side of this thing, with them all set to output their oxygen. I CAN get oxygen from another PRC. Version (make sure you are on the ...
Author mekanism
Stack Exchange
gaming.stackexchange.com › questions › 290854 › emptying-an-electrolytic-separator-in-mekanism
minecraft java edition minecraft feed the beast - Emptying an electrolytic separator in mekanism? - Arqade
November 10, 2016 - Here is a screenshot of the separator GUI: As you can see, the separator has enough water and power, and enough oxygen (The yellow stuff) to fill the pipe.
Beyond-Earth Wiki
beyond-earth.fandom.com › wiki › Oxygen_Loader
Oxygen Loader | Beyond-Earth Wiki | Fandom
Oxygen Loader is used to fill space suits with oxygen. To make oxygen you need to fill it with water, and energy which produces in another machines. ... Use the mekanism mod to use this item, you will want a chemical tank with oxygen in it and ...
Feed The Beast Wiki
ftb.fandom.com › wiki › Purification_Chamber
Purification Chamber - Official Feed The Beast Wiki
In addition to the machines from Mekanism, the generators, energy storages and cables of all supported power systems (IndustrialCraft 2, Thermal Dynamics, BuildCraft and Tesla) can be used to supply it. Furthermore, the Purification Chamber requires oxygen or Flint as consumables.