Daily Halacha - Shabbat Laws, 20 Iyar 5777

Is it permissible to remain in a room where Shabbat was desecrated by turning on lights or air conditioning?

If a person who doesn't observe Torah and mitzvot turned on the light in a room or a tape player for their own use, there is no need to leave the room, since one does not intend to benefit from the light or the tape player [Yabia Omer 10, 34].

Is it permissible to pour hot water from a heating urn onto tea leaves?

It is forbidden to pour hot water from a primary vessel onto tea leaves.  [Chazon Ovadia 4, 326].

Courtesy of Daily Halacha - Only Good and Kindness