Abstract: This invention relates to an insulated firebrick oven adapted for using wood, charcoal, gas or other biomass materials for cooking bread, cookies, roasted meat, pizzas and the like that includes a moveable stand having an anchoring member; and a combustion chamber assembly removably held on top of said anchoring member and having an insulated firebrick food compartment provided with a chimney and an inside heat balancer, and further having a slidably mounted pull-out firebox provided with a pull-out ash tray. Unlike conventional ovens, subject invention has a firebrick wall that could facilitate fast cooking in addition for its perforated firebrick as its fuel. It has further an adjustable air vent that could regulate the needed temperature.