How to get Oxygen?

[clickrush]

1 hour ago, ProfMembrane said:

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?

With a basic setup the algae terraria use the least ressources but the most duplicant interaction. In the long run you want to recycle their polluted water output. Another thing with them is that they produce oxygen regardless of pressure which can be a good or a bad thing depending on the situation.

Oxydizers are super easy to set up and require minimal interaction. They use up more power and ressources than the other alternatives. They will not overpressurize.

Electrolyzers require the most set up but consume water instead of algae to run. If you do it right you can gain net power from consuming their H2 output with hydrogen generators. Water is also an easier to sustain ressource than algae, since there is so much of it in a world. Plus if you find some geysers/vents with steam/water/polluted water output you can sustain your oxygen production indefinitely. Nice electrolyzer setups are the go-to solution for the majority of bases.

Then there is filter/liquifyer based oxygen production where you convert polluted oxygen into oxygen either by filtering with deodorizers or by cooling it down to the condensation point and then heating it up again. This is done if you want to really scale up your base without having to worry about getting capped by your steady water/steam inputs or if you just want to use water for other purposes. It is the most scalable solution since you can spawn morbs w/o cost but also requires the most time/buildup to do properly.

[Slvrsrfr]

17 hours ago, avc15 said:

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.

pro-tip, thank you! 

Not only that you made tackling the swamp biome sound easy...

 

[SamLogan]

You know what? Oxygen Not Included. Deal with it.

[beowulf2010]

1 hour ago, Slvrsrfr said:

pro-tip, thank you! 

Not only that you made tackling the swamp biome sound easy...

 

In normal difficulty games, it's not too bad if you dig slow and overuse Deoderizers. 

[avc15]

1 hour ago, beowulf2010 said:

In normal difficulty games, it's not too bad if you dig slow and overuse Deoderizers. 

yup you need enough deodorizers packed together that you have NO standing PO2 anywhere near your base.... every single bit of PO2 must be sucked up by deodorizers immediately as slime gasses off. For me, corridors 3 high and deodorizers with 3 tiles between them is about right.

You might think that means way more dupe labor to upkeep deodorizers but no, in the long run you use up exactly however much sand it takes to filter the air your dupes breathe. So each new deodorizer you build takes 1 delivery and then hardly any upkeep. The bigger pitfall is the clay that will fall out of them, because you have deodorizers all over the asteroid. (so don't store clay or only put in low priority storage for clay)

There are some other basic rules you need to get the germs low enough before the air gets in your base. Mostly, you have to move slime debris a bit away, so that you're not putting new germs into the air as it comes in the base. Then you have to realize that each time you excavate some more it will compromise your dupes' immunity a little bit, so you just don't do massive digs and you make sure more than just 1 dupe is doing all the digging & building.

So this is a very low tech and low pressure way to progress through the game. You can take your time, explore the whole asteroid, and it also oxygenates the whole damn place so that you won't need suits until you go into magma or space. Explore and build things you feel like building, instead of constantly fighting off that next colony-starving resource shortage, heat death, suffocation...

IDK, it seems a bit too easy in comparison. All you have to do is manage some germs.

[heckubis]

and the clay is great for feeding normal hatches tamed or wild

[greggbert]

Electrolyzers are the best by far, but there can be logicstical reasons to use algae oxidizers:

1) If you want to give oxygen to a room far from your main base that your dupes don't visit very often,

2) if you don't have the ability to deal with the heat from electrolyzers yet. 

3) To push gases up or down so it's easier to clear them out.   Like If I find a big blob of hydrogen in a natural cavern I'll put an oxidizer in the room, turn it on until all the hydrogen is pushed to the top, then pump out the hydrogen.  Or if I have a drecko farm and I want to have hydrogen stay at the top, or in my oil refinery room to increase the air pressure and pus the nat gas to the bottom for pumping.

4) To use as oxygen source for environmental suits if the storage bay is very far from my main 02 supply.

As far as terrariums I don't find them useful at all and don't understand why anyone would use them.  C02 is useful, and is easy to push aside if it's not, and they are much less efficient at producing oxygen than Oxidizers.

[KittenIsAGeek]

11 minutes ago, greggbert said:

As far as terrariums I don't find them useful at all and don't understand why anyone would use them.  C02 is useful, and is easy to push aside if it's not, and they are much less efficient at producing oxygen than Oxidizers.

I use them in my early base.  Usually only two or three of them to supplement my deoxydizer.

[ZeZesRevenge]

On 30.08.2018 at 7:15 AM, avc15 said:

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.

 

If I did not get you wrong, you mean using slime to create PO2.What about using pufts?

[psusi]

1 hour ago, greggbert said:

As far as terrariums I don't find them useful at all and don't understand why anyone would use them.  C02 is useful, and is easy to push aside if it's not, and they are much less efficient at producing oxygen than Oxidizers.

No, they are *more* efficient than oxidizers; they are just slower and require more labor.  I usually build one in tunnels away from my main base.

[avc15]

7 hours ago, ZeZesRevenge said:

If I did not get you wrong, you mean using slime to create PO2.What about using pufts?

you can use slime to make food (mushrooms), oxygen+water (distiller), or oxygen (directly off gassing)

Choose your poison. If you want oxygen, pufts are the wrong way to go, because they delete mass *recursively*.

I actively hunt and kill pufts because in this present build they're just a nuisance.

[Slvrsrfr]

I am also curious as to the output of compost as a baseline low-key pO2 creator.. having a line of them seem to bubble pretty well. Enough to make my skin crawl. Which is what happens when I watch pDirt off-gas in the bathroom after cleaning.

.

.

Bubble.

[PhailRaptor]

11 hours ago, greggbert said:

As far as terrariums I don't find them useful at all and don't understand why anyone would use them.  C02 is useful, and is easy to push aside if it's not, and they are much less efficient at producing oxygen than Oxidizers.

Actually, Terrariums are quite a bit more efficient than Deoxidizers in several respects:

-> Comparing Algae cost to O2 produced, Terrariums are more effecient

-> Terrariums require zero power input, but are more efficient with a simple 3 W or 5 W light

-> Terrariums under light are mass positive, meaning they produce more materials than they consume

The cost of all this is a huge increase in Dupe labor to keep them running.  You are pretty much required to dedicate a Dupe to the singular purpose of emptying the P-H2O from the Terrariums, whether you are Sweeping the bottles away or not.

[Slvrsrfr]

6 minutes ago, PhailRaptor said:

Actually, Terrariums are quite a bit more efficient than Deoxidizers in several respects:

-> Comparing Algae cost to O2 produced, Terrariums are more effecient

-> Terrariums require zero power input, but are more efficient with a simple 3 W or 5 W light

-> Terrariums under light are mass positive, meaning they produce more materials than they consume

The cost of all this is a huge increase in Dupe labor to keep them running.  You are pretty much required to dedicate a Dupe to the singular purpose of emptying the P-H2O from the Terrariums, whether you are Sweeping the bottles away or not.

Could they be partially submerged in a holding cell/pen/building, that has a pitcher pump set for bottle draw dictated by an emptier? And along with compost, that could provide some cheap-ish over-pressure(?)O2. Don't terrariums goto 2.5k?

Man, that's build I think I wanna see. A composting/O2 box. On the cheap.

[greggbert]

Dupe labor and base space are imho also important resources esp in the early game.  One dupe managing algae is the same as one full time researcher.  Other aspects  of the early game reward you for keeping your pop low.  That increases the opportunity costs of a full time algae slave.

[avc15]

8 hours ago, PhailRaptor said:

Actually, Terrariums are quite a bit more efficient than Deoxidizers in several respects:

-> Comparing Algae cost to O2 produced, Terrariums are more effecient

-> Terrariums require zero power input, but are more efficient with a simple 3 W or 5 W light

-> Terrariums under light are mass positive, meaning they produce more materials than they consume

The cost of all this is a huge increase in Dupe labor to keep them running.  You are pretty much required to dedicate a Dupe to the singular purpose of emptying the P-H2O from the Terrariums, whether you are Sweeping the bottles away or not.

Terrariums are great for making little pockets of O2 far away from your base with very little effort. Just plop it down, let it use itself up once and by then you're probably ready to shut it off.

Just keeps your dupes on task so that they don't make really long treks for a few seconds of work time, then have to go a screen back to breathe.

(I would personally not use terrariums as a mainstay for oxygen production, in fact, you only want a small number of them turned on at any time)