This is one of the common question we get asked by our customers. CSIA stands for Chimney Safety Institute of America. The CSIA is a non-profit educational organization that exist to provide chimney and venting safety resources to those in the industry and to you, the homeowner, with these goals in mind: 1. Elimination of residential chimney fires. 2. Preventing carbon monoxide intrusion. 3. Improving home heating efficiency. Advanced Chimney Inc. is certified by the CSIA and more information about the CSIA and other great information about safety issues, selecting firewood and much more can be found at csia.org