- Shabbat and Holidays
- Halachot of Yom Tov
Can you refill or add cold water to an electric urn on Yom Tov if the urn was plugged in before Yom Tov?
Yes, but the on/off/heat level switch should be covered. Normally this is not a problem as there is no need to adjust if the water is hot, but if you put in cold water there is a chance one would fiddle. This is all regarding Yom Tov, on Shabbat no water can be added at all. What if there is an electric light?