It looks like you are throttling your tasks by "Use at most x% CPU time". That is very inefficient. It wastes more power than saves. If you want to reduce your heating, please look into downclocking your CPU. In linux you can use cpufreq or intel_pstate's max_perf_pct.
RE: The winter is here, if you are considering to start Mining, I suggest you to start BOINCing instead