Hydrofan

Hydrofan is a manually operated cooling building used to temporarily lower the temperature of a small area. A Duplicant can work it when needed, making it a simple spot-cooling option rather than a full base-wide temperature solution.

Its main role is short-term, localized cooling. Because it affects only a small area and is described as temporary, it is best suited for emergencies, heat-sensitive rooms, or isolated hot spots that do not justify a more permanent cooling system. It is especially useful when a player needs immediate relief in one location without redesigning an entire cooling loop.

• It is operated directly by a Duplicant.
• It is meant for small areas, not large-scale temperature control.
• Its cooling effect is temporary, so it is not a substitute for dedicated heat management infrastructure.

In practice, Hydrofan fits best as a stopgap or convenience tool. It can help bridge the gap before a more efficient cooling setup is available, or it can be kept for occasional use in rooms that only need brief intervention. Because it is manual, its usefulness depends on whether a Duplicant is available to run it when the area heats up.