Using a Chiminea Indoors A chiminea adds warmth and ambiance to a backyard. It can also be used for cooking and is more secure than an open fire pit. Clay chimineas require an sand layer at the base to prevent cracks in the thermal structure due to sudden temperature changes. https://fireplacecanada79012.targetblogs.com/30385863/ten-startups-that-are-set-to-change-the-chiminea-fire-pit-industry-for-the-better