The miner will have to look after the whole system if he is working in a hot region if they are going to heat up.It is better for miners to plant their system in cold weather or snowy region where we do have not to face processor heating up problems. More is that you have to solve blocks that you are connecting in a mining pool. you have to confirm valid transactions that your miner hashing away.
nulls clashYeah...as i mine using the GPU, their temperature rises to 65C. and one GPU even reached 70C in summer. Now it's winter here and weather is cool. Their temperature is low enough that i don't have to worry.