The oven depth 12cm and the barbecue depth 10cm- 12cm can save carbon. The depth of the barbecue oven is 12cm, which can make the charcoal fire more concentrated on the barbecue food and avoid the waste of charcoal fire. The deep oven can hold more food and barbecue is more convenient. The barbecue oven is too deep, and it will be difficult to clean and replace the charcoal fire.