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Steam (Gas) Management Guide: Mechanics & Setups

Steam and gases are the category of non-solid fluids used in Factorio for power, processes and transport; understanding their properties, storage and handling is essential for steam power and fluid logistics.

Nature and classification

  • Steam is the only gas / non-liquid fluid in Factorio. All other fluids are treated as liquids.
  • Because steam is non-liquid, it has unique handling rules compared with ordinary fluids (pumps, pipes, storage behavior).

Steam properties and behavior

  • Steam cannot be stored in barrels. It must be transported and stored using fluid tanks, pipes, and heat/engine systems rather than barrel mechanics.
  • Steam storage (the steam tank filling animation) visibly fills from the top rather than from the bottom; this is a visual detail of the tank UI.
  • Steam is the primary fluid used by steam engines and steam turbines for electricity generation; it plays a central role in early and some late-game power setups.

Handling and logistics

  • Use pipes, underground pipes and pumps to move steam exactly as you would other fluids, but remember special-use items that barrel fluids do not apply to steam because it cannot be barreled.
  • When designing systems that interact with other fluid mechanics (oil processing, chemical plants, heat exchangers), include steam-specific consumers and producers (boilers, steam engines, steam turbines) in your fluid network planning.

Technology and progression

  • Steam power technologies tie into the fluid system, the electric power system and oil processing chains. Researching steam power unlocks the buildings and recipes needed to produce, transport and use steam for electricity and some thermal processes.

Practical tips

  • Because steam cannot be barreled, plan permanent pipe/tank networks for steam-based power rather than relying on portable barrel logistics.
  • Monitor steam networks visually and with flow controls (pumps) to maintain the pressure and flow needed for stable power output.
  • Integrate boilers, heat sources and steam consumers on the same network when feasible to avoid flow bottlenecks.

This guide focuses on steam as Factorio’s distinct gas; treat it with the same fluid-network planning as liquids but remember its storage and barreling exceptions.