Stovetop Attached to Chometz Oven

41. If the Pesach stovetop is attached to a chametz oven that is not being used on Pesach, the oven must be cleaned of all chametz particles.

42. If one sells the oven to a Goy, but wants to use the stove, he must specify in the bill of sale that the gas stove is not included, and he must mark on the oven that it is sold to a Goy and secure the door shut with a cord or tape.