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Shabbos clock that I can’t use


  1. I purchased a “Shabbat clock” for electrical appliances. I wanted to use it for my heater. It cost 40 NIS. It turns out that when the Shabbat clock turns on and the heater connects to the electricity, it doesn’t automatically resume operation. It’s on, but it won’t work unless I press another button.
  2. Is there anything I can do in this case? On a related note, is there a way I can educate myself about “terms of sale” for different classes of items in Israel?

Thank you so much for your consideration of my questions.



Thank you for your question.

  1. This sounds problematic, because by pressing the button you are actually turning the heater on which would be a melacha d’orayso. The only thing I can suggest is either to keep it on all Shabbos, (if it isn’t a health or fire hazard) or maybe find someone that can make some change to the heater so that it doesn’t have to be restarted if the electricity gets turned off.
  2. What do you mean by “terms of sale for different classes of items”.

Best wishes


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