How air conditioning won't help? All Datacenters over the world are in closed rooms with air conditioning.
As long you have enough air conditioning power to cool the air, it won't be an issue. I think that a 24000 BTU air conditioning will be enough for 20000W (10 Whatsminer).
4 x 20000 = 80000 so how does 24000 cool down 80000?
answer it dont.
a watt is close to 4 btus
around 3.93 IIRC
So a 24000 btc ac will not do trick for more then 3 x 2000 = 6000 x 4 = 24000