- Shabbat and Holidays
- Halachot of Yom Tov
Re: Electric Urn
Question
Adding water to an electric urn on Yom Tov, isn’t it possible that by adding water you will cause a light to go on or off? Wouldn’t this be prohibited?
Answer
Quite correct, I was assuming the only effect of adding the water was that the water would become hot. This is true of my urn, maybe not others.
One may also boil water on a fire and then add to urn.

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Rabbi Chaim Tabasky
Rabbi Chaim Tabasky teaches a shiur in gemarah at the Beit Midrash program of the Machon Hagavoah l'Torah at Bar Ilan University. He is also a certified examiner of STa"M (Sifrei Torah, Tefillin and Mezuzot) and a narrative therapist.

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