Immersion cooling
Also called: liquid immersion cooling, immersion
A technique where the miner is submerged in a dielectric liquid, which does not conduct electricity and absorbs heat from every component at once.
Immersion cooling means fully submerging a miner's circuit boards in a tank filled with a dielectric liquid, in other words one that does not conduct electricity. It is usually a specially formulated synthetic or mineral oil. The fans are removed: the liquid itself surrounds the chips and carries the heat away.
The liquid circulates between the tank and a heat exchanger, often connected to an outdoor dry cooler. Because the entire surface of the components is in contact with the fluid, the temperature stays very even and hot spots disappear. The machines are also protected from dust and humidity, and the room becomes almost silent. This thermal stability sometimes leaves headroom for overclocking, as long as you stay within the hardware's limits.
Immersion requires an upfront investment: tanks, liquid, pumps, heat exchangers. It mainly makes sense from several machines upwards. Not all miners are equally suited to it: some models are designed for immersion, others have to be adapted, which can affect the warranty. Check this on the product page or ask us before modifying a machine. Also think about maintenance, since taking a miner out of the bath means draining and cleaning it.
We can point you to the ASICs in our catalogue best suited to an immersion project.