Temperature, Overheating & Wear
Temperature System
The temperature on your farm changes throughout the day. The ambient temperature rises over the course of the day and peaks in the early afternoon. Weather conditions and heatwaves can raise it further.
Every active miner also generates its own heat. More powerful models run hotter, while smaller miners with weaker cooling struggle sooner under high temperatures. Cooling upgrades, a higher facility tier and the cooling tower improve your cooling capacity and help keep operating temperature low.
Each miner model has its own overheat threshold (smaller models earlier, bigger ones later — from about 62°C for the Antminer S1 up to 90°C for the top models). Once it’s reached, the miner is considered overheated. At critical temperatures, the risk of failure increases.
Every miner needs matching cooling: without upgrades even an S9 overheats in the Garage, and the bigger the model, the more cooling tiers it needs. A miner far above its threshold fails within a few hours — so cool new miners right after buying them.
The base ambient temperature is 22°C, plus the daily swing and event effects.
How to Cool Your Farm
| Measure | Effect |
|---|---|
| Air Cooling+ (max 3 tiers) | +8 cooling points per tier |
| Liquid Cooling (max 2 tiers, requires full air cooling) | +20 cooling points per tier |
| Cooling Tower (infrastructure, max level 5) | lowers the temperature of the whole farm by about 3.6°C per level |
| Higher facility tier | additional cooling capacity |
Liquid cooling is therefore much stronger per tier than air cooling (+20 instead of +8). Small miners with weak heatsinks (e.g. the Antminer S1) suffer especially from heat, even though they draw little power. Overclocking adds even more heat. Details on the upgrades: Miner Upgrades.
Heatwaves make things especially challenging for your farm: ambient temperature rises by 12°C, failure probability increases, and power draw goes up.
Wear & Failure
Miners wear down over time. Wear increases during operation and climbs faster at higher temperatures and with overclocking active. This process differs depending on the miner model. Wear also reduces hashrate, and the effect gets progressively stronger: at full wear a miner only delivers about 40% of its output. From roughly 45% wear, the risk of failure rises as well — the closer wear gets to 100%, the more likely it becomes, and at 100% the miner is certain to fail.
Maintenance resets the miner’s wear completely to 0 and caps its temperature at 50°C. Maintenance isn’t possible on already-failed miners.
Repair also resets wear to 0 and sets the temperature to 45°C. This brings a failed miner back into service. After maintenance and repair, the miner initially stays offline and has to be restarted manually.
Details on the maintenance/repair flow: Maintenance, Repair & Installation.