Large Clay Chimineas For Sale Chimineas made of clay need to be protected from the weather. If left exposed to cold and rain a chiminea made of clay can get softer or crack. Chimineas that are regularly used should be filled with 50mm of sand or Gardeco Lava stones (see https://fireplaces-uk86307.bloggerchest.com/29771564/7-simple-secrets-to-completely-you-into-biggest-chiminea