Breckwell Stove Rope Door Gasket (3/8″ x 6′). The door gasket creates a tight seal between the main door and the body of the unit. You should inspect this gasket regularly. If the door does not seal properly you could have a difficult time controlling the burn and it may allow smoke/flue gas to enter the room. If the gasket is damaged or the door will not seal correctly it should be replaced!