Don't forgot about electromagnetic radiation, put your mining farm to the plumbic box
And buy air humidifier. You cant buy health for mined coins
thanks for your advices,
What is plumbic box" ? I didn't find it on google
And about air humidifier I don't need it today , I have two desktop fans that give me a lot of air from outside and take the hot air out, I will check it on the summer.
About electromagnetic radiation I will test it with detector .