We do not recommend using any products other than Moderno, Urbania, BBQ, and Rustico blocks to build fire pits. This is because our accessories, such as the spark arrestor, are designed for safe fire pit use and are not compatible with our other concrete products. In the event of direct contact with a flame, other landscaping products could suffer thermal shock and crack, which is why we do not recommend them for fire pit construction.
Can I use blocks other than the ones you sell for fireplaces?
Philippe Girardin