Thermosyphons offer passive, reliable transport similar to heat pipes, except they leverage gravity to return the fluid. By designing thermosyphons in a loop configuration, it eliminates counter fluid flow and increases the power transport capability dramatically. Loop Thermosyphons are frequently used to transport large heat loads to remote heat sinks above the power electronics devices. They can also incorporate flexible lines to make for easy integration into your system.

Loop thermosyphons are often used in high-power and high-heat-flux applications.

The thermal resistance of loop thermosyphon cold plates can be less than 0.005 °C/W. A second benefit is that the condenser can be located remotely from the cold plate, and attached using quick disconnects.