How to get Oxygen?

[ZeZesRevenge]

I run out of oxygen when I run out of algae.Is there an alternative way to gain oxygen?

 

[Zarquan]

1 minute ago, ZeZesRevenge said:

I run out of oxygen when I run out of algae.Is there an alternative way to gain oxygen?

Electrolyzers are the next step.  Though they do run a bit hot and you should keep an eye on that.  Your goal should be to get renewable water through things like steam geysers, but there is a lot of water on the map, so you should be fine for a very long time.

[Bukz]

I use an electrolyzer to feed an AETN.

[ZeZesRevenge]

What if a steam geyser is not enough?

 

[Stoned]

Don‘t worry too much, you will have at least 2 steam geysers on your map and some other water sources. Just be careful with the dupes, one steam geyser should give enough water for roughly 10 dupes 

[H0SS]

I'm pretty sure every map spawns with two cool steam vents, and chances are good that there's at least one other variety of water geyser as well.

Ranching Pufts for slime to distill into algae also produces a fair amount of pwater you can refine, as well as netting some, you know, algae. 

[KittenIsAGeek]

Recycle polluted water.  Convert slime to water and algae.  Melt ice.  There's a tremendous amount of water on each map.  

Heck, build excessive nat gas or petroleum generators and use the "waste" water.

[Saturnus]

Build lavatories so you can harvest the dupes excess expulsions. They are water positive.

[PhailRaptor]

3 hours ago, ZeZesRevenge said:

What if a steam geyser is not enough?

The only reason this should ever happen is if you're using a bricked over, random Geyser that just happened to be Steam or Cool Steam.  The worst of the guaranteed exposed Cool Steam Geysers I've seen had an adjusted output rate of 0.9 kg/s.  They average around 1.2 or 1.3 kg/s, from my experience.

[Sasza22]

You can switch to terrariums ealry to save some algae but it`s clunky and requires a lot of dupe operation and space to store the polluted water they produce. Later in the game it`s best to go for electrolizers and use the leftover algae to feed fish or cook it to dirt.

[psusi]

7 hours ago, PhailRaptor said:

The worst of the guaranteed exposed Cool Steam Geysers I've seen had an adjusted output rate of 0.9 kg/s.  They average around 1.2 or 1.3 kg/s, from my experience.

Oh really?  Wow... the one on my current map is 5 kg/s.  There's another one right on the other side of my base that I haven't dug up yet.

[Christophlette]

26 minutes ago, psusi said:

Wow... the one on my current map is 5 kg/s. 

When @PhailRaptorsays that geysers outputs 0.9kg/s, it is the average output. To get it, you must do the following calculation : 

Output * ( period of activity / full period) * (cycles of activity / full dormancy period)

So for a geyser that output 5kg/s, is active for 400s every 600s and his activity is 80 cycles every 95 cycles it would give :

5 * (400 / 600) * (80 /95) = 2.8kg/s on average.

Now tell us how good yours is

Edit : Sorry. I tagged the wrong person !

[Sasza22]

8 minutes ago, Christophlette said:

When @Sasza22 says that geysers outputs 0.9kg/s

It was  @PhailRaptor don`t give me the credit .

[Neotuck]

Another O2 source is Morbs

There are 2 paths to use with Morb farming for O2

The first is making a LOX machine which can be complex and power hungry

Second is using deodorizers, this doesn't kill the slimelung but it can be very useful for charging exosuit docks which are unaffected by germy O2

[ZeZesRevenge]

What is a Lox machine?

[KittenIsAGeek]

Liquid OXygen.

[heckubis]

4 hours ago, Christophlette said:

When @PhailRaptorsays that geysers outputs 0.9kg/s, it is the average output. To get it, you must do the following calculation : 

Output * ( period of activity / full period) * (cycles of activity / full dormancy period)

So for a geyser that output 5kg/s, is active for 400s every 600s and his activity is 80 cycles every 95 cycles it would give :

5 * (400 / 600) * (80 /95) = 2.8kg/s on average.

Now tell us how good yours is

Edit : Sorry. I tagged the wrong person !

here fore easy reference  https://onical.ga/

this will do all the calculation for geysers, vents and volcanoes

[SamLogan]

17 hours ago, ZeZesRevenge said:

I run out of oxygen when I run out of algae.Is there an alternative way to gain oxygen?

 

You didn't run out of algae given there's many other tons of it in the asteroid. Your problem is you didn't visit the asteroid to find more algae.

Then, yes, you have to setup Electrolyzer.

17 hours ago, ZeZesRevenge said:

What if a steam geyser is not enough?

I have 20 Duplicants and I only use one geyser. If you feel you don't have enough water, it due that you didn't cool, at all or not enough,  the steam and the geyser get ovepressurized and then produce less water it can usually.

[greggbert]

It should take you a long time to even need the steam geysers.  First use all the fresh water, then recycle your polluted water, then recycle the polluted water scattered all around the map, and then, maybe, you can start worrying about using geysers.  The real trick is to keep your number of dupes low, rely on fried mushrooms almost exclusively when you can.  They don't need to be irrigated like Wheat or berries and you don't need to use water to cook them like liceloaf. 

You do this by not over-promoting your dupes, and building all the entertainment buildings as soon as they become available.

[ZeZesRevenge]

A steam geyser ıs enough for both making oxygen and providing you water?

[heckubis]

by the time you need to make o2 with water you should be past using water for food leaving only the water cooler and espresso machines and terrariums. well planters still need water its just this is where the water should be going in the first place. and try not to use all the starting water that stuff will keep you base cool for 200 cycles or more if you leave it alone

by this time your washrooms should be on loops (they literally make water)your sinks and showers should be converting clean to pwater that is either cleaned or used as is

[psusi]

4 hours ago, heckubis said:

here fore easy reference  https://onical.ga/

this will do all the calculation for geysers, vents and volcanoes

Neat. It says:

Better than 55% of the same type geyser.

Actual average second output : 1.38 kg/s

Store: 20 kg/tile, 41.40 tiles/cycle

[avc15]

Dig out some slime in a swamp near your base and build a bunch of deodorizers inside the void you just created. Move slime debris outside some perimeter maybe like a third of a screen away from your base, and then from there just let it build up on the floor. When pressure in your base starts dropping just excavate more of the swamp and build more deodorizers to clean the newly uncovered area.

Oh, make sure any storage you have for clay is set to a LOW priority, this way the dupes will deliver filtration medium but won't run around picking up clay each time a deodorizer poops out another 10kg.

After you have hundreds of clumps of slime sitting on the ground all over the asteroid you don't need to generate oxygen directly anymore. Has the side benefit that you'll also dig a significant amount of algae up along the way.

Cycle 322, completely turned off deoxidizers for about 75 cycles now, haven't built electrolyzers, 8 dupes. Hardly have to cool the base, I can keep my dupes on 40+ morale but I'm only using less than 20 kJ/dupe/cycle (vast majority of which is some espresso machines). Haven't even had to tap into a water or steam geyser yet, and starting water was average at best.

 

[ProfMembrane]

Hey, sorry to revive this, but I've been told the wiki is out of data, is it better to use algae terraiums, algae oxygizers or electrolizers? If so, when?

[beowulf2010]

In my opinion, Electrolizers are the best as they are ultimately dupe free. 

Algae Deoxydizers are fine if you don't mind the occasional delivery errands and are not using Algae for feeding Pacu. 

Terrariums are actually decent, but are labor intensive as they require dupe interaction to empty the polluted water. So, while they're decent and have uses, they're not as good as the other 2 options.