The Pot boiler is interactive scenery that can be found next to the Odd Old Man. It is used in the Rag and Bone Man and Rag and Bone Man II quests to clean bones. In order to do so, players must light logs below the pot-boiler and then add a bone in vinegar. After 12 seconds, the bone will be clean and the player may collect it. It should be noted that the logs put under the boiler do not have to be normal logs.