Our small stoves already come with a set of side fire bricks, but you can purchase a spare or replacement set here. You will need to select the type of stove you have, and this will depend on what type of bricks you have. The only type of stove that requires our vermiculite bricks is the Pre-Eco Hobbit SE. All of our Eco-Design stoves are now complient with cast iron bricks so vermiculite bricks are now only required for pre-eco SE stoves.