Oxygen Not Included – Salt Water Geyser: Infinite Saltuner Blueprint

Salt Water Geyser

Note: Credit goes to fradow

• Goal: efficient Salt Water Geyser tamer to extract water
• Author: Fradow, improved by Saturnus
• Input: a Salt Water Geyser, about 150W for an average geyser
• Output: about 1.5kg/s water average, in an infinite storage

Since a Salt Water Geyser outputs 95°C Salt Water, it’s surprisingly power-efficient to vaporize it and immediately re-condense it to Water. More power-efficient than trying to use a Steam Turbine, or using the dedicated building, the Desalinator, while also removing the Dupe labor.

1. Salt Water flows from your Salt Water Geyser into the boiling chamber.
2. When there is over 50kg/cell Salt Water in the chamber, the Aquatuner turns on to boil it.
3. Even with additional flow coming in, it will quickly boil and form Steam on the tiles above.
4. The Steam is very quickly condensed by being in contact with the Manual Airlock.
5. When condensed, since the water has nowhere to go, it will try to find any cell upwards it can condense in: that’s in the Infinite Storage. I call that water teleportation, and despite being weird, so far I believe that’s not a bug but rather the normal tile-swapping rules and won’t get changed.
6. The outgoing Salt and Water exchange a bit of heat with the incoming Salt Water before being shipped/piped out.

This is the most practical “Infinite Saltuner” variant of the Saltuners series. See the main article for the “Stoppable Saltuner” and the “Hybrid Saltuner” variants, which use a big heat exchanger for efficiency and being able to stop, but are way less practical as a result.

Disclaimer: there has been a single report of this build failing because Steam forms at a place it shouldn’t when the geyser eruption stops. If you are worried about it, use my slightly bigger design shown in small in the main article, which should not exhibit that failure case.