Chapter 23
Housekeeping and Use of Domestic Facilities on Shabbath and Yom Tov.
CENTRAL HEATING
28.a. One should not hold one’s wet hands near a warm radiator on Shabbath, even if its temperature is less than 45 degrees centigrade.
28.b. There is, however, nothing wrong with warming them at the radiator after they have been dried.
29. One is not permitted to spread or hang wet laundry on or near a radiator, even if its temperature has not reached, and will not reach, 45 degrees centigrade. (See Chapter 15, paragraph 9.)
30. While wearing wet clothes, one may not stand or sit near a radiator in a position where the temperature reaches 45 degrees centigrade, even if one’s sole intention is to warm oneself and not one’s clothes.
