If only there was a technological solution to this....... https://en.wikipedia.org/wiki/KosherSwitch https://en.wikipedia.org/wiki/KosherSwitch I believe ther

If only there was a technological solution to this....... https://en.wikipedia.org/wiki/KosherSwitch https://en.wikipedia.org/wiki/KosherSwitch I believe thermostats are okay, as long as you don't adjust it. Many observant Jews use timers on Shabbos.