Terraluxe (Doughpro) DPO7 Specifications: Terraluxe (formerly Doughpro) DPO7 Round Commercial Ovens come with legs, two-part assembly, and all insulation required. This standard range of circular ovens is acknowledged worldwide for its superior cooking ability, efficiency and flexibility of design. This round commercial oven is offered with the *options of wood, wood/gas-backup fired, full gas, coal/wood fired or coal/gas fired and an Internal Diameter of 71" with a 28 sq ft. cooking surface. The cooking surface (hearth) of the oven uses high quality 3" thick alumina bricks, renowned for their excellent cooking attributes and incredible wear resistance. *This model is Coal & Natural Gas. Warranty: 5-year Structural Warranty and 1-year parts and labor on gas / electrical components.