Antifreeze is very expensive and must be constantly topped up. The cheapest option is to use distilled water and ensure it doesn't freeze. Water typically doesn't freeze as it moves through pipes;
I think it's more of temperature regulation. Generally in the mining setup you are trying to cool so if you have a lower ambient temperature it's an advantage already the next step is to control how much heat you lose at a steady rate on average and balance that with preventing the water from freezing.
Phil mentioned combining both and it's understandable considering how low the ambient temperature would be if you totally exposed the system to the environment.
anti freeze and distilled water is cheap.
If a guy is running a wet container the fan and radiator is not indoors.
so a black out means you kill the radiator due to freezing it.
-10c or 14f will kill the radiator even if you can run the pump on a
battery for an hour.
the cooling setup will die in a day if power dies.
A 25% antifreeze mixture typically freezes at around 0°F (-18°C). The freezing point can vary based on the specific type of antifreeze used, but generally, a lower concentration of antifreeze results in a higher freezing point compared to a 50% mixture, which protects down to approximately -34°F (-37°C)
.
Factors Influencing Freezing Point
Type of Antifreeze: Different formulations (like ethylene glycol) may have varying properties.
Water Content: The ratio of water to antifreeze significantly affects the freezing point.
So using 1 to 3 ratio will make things much safer in cold places
as 0°F (-18°C). is likely to take a long time to get down to in a blackout.
vs 32°F and 0°C
I can get a 1 gallon pre mix of 50-50 for 8 bucks
add a gallon of distilled water for 2 bucks
so 10 dollars for a 2 gallon mix vs 4 dollars 2 gallon distilled
and 100 dollars for a 20 gallon mix vs 40 dollars 20 gallon distilled
and 1000 dollars for a 200 gallon mix vs 400 dollars 200 gallons distilled.
to me if I have 4 s23 hydro at 17000 a unit 68000 for the miners and say 20000 for the cooling I am paying for the antifreeze mix not sure what a unit cooler uses.
here is a 1.2 mega watt cooler
https://apextomining.com/product/antspace-hw5-1200kw-dry-wet-tower/