Steam Power Tests: Community Benchmarks

These numbers are a starting point for experiments, not official machine ratios. The Reddit author measured several small Steam cells and documented both results and instability.

Observed Starting Loads per Lava Tile

These are the author’s approximations from a short test, not guaranteed ratios.

Lava and Water Findings

• A 2–3-pixel Lava layer boiled faster than a full 4-pixel line in the tested geometry.
• The author considered 3 pixels the safer starting depth; 2 pixels sometimes bottomed out.
• One setup held about 5 Water pixels per vertical tile in transit as a working buffer.
• Changing chamber shape or slope changed circulation even with the same components.

Build a Reproducible Test Cell

• Isolate one heat cell from the main factory.
• Mark starting Water and Lava levels.
• Run long enough for both heat and Water buffers to cycle.
• Add one consumer at a time.
• Record whether the cell stabilizes, oscillates or drains before cloning it.

Common Failure Modes

• Snow demand exceeds Water recovery.
• Steam or condensed Water is trapped by angled geometry.
• Water overflow touches unrelated Lava and creates blocking Steam.
• A short successful run hides slow Lava consumption or buffer loss.

Source and Evidence Label

Source: Steam Power Tests on r/SandustryGame, published August 17, 2026. The author explicitly says the final setup was tested only briefly. Preserve that caveat whenever quoting the numbers.

Steam Test FAQ