Using a Chiminea Indoors A chiminea can add warmth and ambience to your backyard. It can also be used to cook and is more secure than an open fire pit. Clay chimineas need an additional layer of sand at the bottom to stop thermal cracking due to abrupt temperature fluctuations. https://fireplacesandstove02344.blogmazing.com/29358976/10-myths-your-boss-is-spreading-about-chiminea-fire-pit