Using a Chiminea Indoors Chiminesas can add heat and ambiance to a backyard. It can also be used for cooking and is more secure than an open fire pit. Clay Chimineas require a layer sand in the base to protect them from thermal cracks caused by sudden fluctuations in temperature. https://stoves-canada88641.blogsvila.com/29997183/the-reason-why-you-re-not-succeeding-at-chiminea-fire-pit