These replacement fire bricks come in a pack of six. Firebricks help extend the life of a wood stove. Webaug 30, 2012 · my question is does it matter what brand of firebrick i use to replace them? Is firebrick firebrick, or do i specifically need drolet or sbi brand? The main reason being. These replacement fire bricks come in a pack of six. Firebricks help extend the life of a wood stove. Webaug 22, 2007 · ceramic firebrick can be used for insulating wood stoves, furnaces, barbecues, firepits and…