Large Clay Chimineas For Sale Chimineas made of clay need to be protected from the elements. If exposed to cold and rain, a clay chiminea can get softer or crack. Chimineas that will be frequently used should be filled to 50mm with Sand or Gardeco Lava Stones (see Accessories above). https://stoves-uk10864.angelinsblog.com/29372158/10-inspiring-images-about-biggest-chiminea