Buy duck oven should pay attention to the following points: 1, duck oven sealing the current market many not well-known brands (small factory system) duck oven quality is general, rough production process, the edge of the air leakage is easy to lead to sealing is not good, and its heat preservation performance will be poor. So when you buy to see the details of its production process and the outer material (stainless steel material) thick and thin, to sealing in order to be more heat preservation. 2, roast duck oven gall bladder quality roast duck oven gall bladder can generally be replaced individually, the purchase of special attention to the quality of the gall bladder, the large diameter gall bladder charcoal is easier to burn, the fire is greater, easier to control the temperature, the temperature inside the furnace is more uniform. 3, the opposite is not suitable for use. Instead, it is not suitable for use.3, duck oven damper flexibility duck oven to hand when buying check whether the damper is easy to open or close, whether it is easy to fall, whether it is easy to operate and so on.4, duck oven temperature display table duck oven to buy the suggestion must be standardized with a temperature table, easy to roast duck in the future to observe the temperature inside the oven, control the temperature at any time.