Using a Chiminea Indoors Chimineas can add warmth and ambiance to your backyard. It can also be used for cooking and is more secure than the fire pit. Clay Chimineas need a layer of sand in the base to protect them from thermal cracking due to sudden changes in temperature. https://fireplaces-uk98631.thechapblog.com/29345387/10-inspirational-graphics-about-chiminea-fire-pit