I am not sure if this is helpful but it does work well for me.  There is a fairly easy way to manage times where there is a bit of excessive heat.  Put the Raspberry controller's power on a WiFi enable "smart switch" and then connect the switch to IFTTT (If-This-Then-That) running on a tablet or phone.  The write two scripts that turn off and then on the power to the controller when the temperature gets to a certain point (you can use Weather.com or you can buy a sensor for the room where the miner is). 
The benefit of this is you are not cutting power on and off the miner, just the controller.  The Wifi plugs are really cheap now too and IFTTT is a free app.

My miners go off when the outside temp goes above 90 and then back on when it drops below 85.  This means they turn off during the hottest part of the day (electricity is in demand then anyway).  Here is a good article on IFTTT: https://www.cnet.com/topics/smart-home/best-smart-home-devices/best-ifttt-compatible-gadgets/
and here are some good prices on compatible smart plugs:  https://www.amazon.com/s/url=search-alias%3Daps&field-keywords=wifi+smart+plug+ifttt