How hydro works
Same chips, same hashrate. The difference is entirely in how the heat gets out — and that difference is worth about a third of your power bill.
Air cooled
Hot air spreads into the room, gets re-breathed by the next machine, and makes a lot of noise doing it.
Liquid cooled
A closed loop carries the heat away and dumps it outside. Nothing recirculates, and you get usable hot water at the end of it.
A cold plate bolts straight onto the chips. Metal to metal contact moves heat far faster than blowing air past a heatsink ever can.
This is where the efficiency actually comes from. Silicon leaks less current when it is cold, so the same hashrate holds at a lower voltage. That is the whole trick — 16.5 J/TH on air becomes 9.5 J/TH on water.
Air-cooled machines packed together end up inhaling each other's hot exhaust and throttling. A closed loop does not care how tightly you rack them.
You get 55–60°C water out of the loop. That can heat a building, a pool or a process. Hot air out of a fan is just a nuisance.
The catch: hydro needs a loop, a pump and a dry cooler sized for your worst summer week. Get that wrong and you lose every advantage above. It is the part we build ourselves.
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