Constructed of pure refractory materials and pure granite with a minimum of 90% alumina content. Refractory materials vibrated during the curing process to produce exceptionally dense and resistant work surfaces. Oven walls average 7" in thickness with completely sealed wall enclosures. Removable cooking surface slabs for easy service and maintenance. Thermostatically controlled gas burners located inside of the cooking area. Heavy gauge metal jacket. External granite slab work surface. Vent cavity opens to 7", diameter flue outlet on front top of oven. Externally mounted, internal reading thermometer. Base supported by four flanged steel legs.