Does the subject want to ask "how to keep the vent of the barbecue oven" Open the vents on both sides of the barbecue. In order to fully burn the charcoal in the combustion furnace, the charcoal barbecue oven should have two vents and use an electric drill. It is necessary to drill two ventilation holes on both sides of the furnace body with an electric drill, so as to ensure the oxygen needed for charcoal combustion. Barbecue oven is a kind of barbecue equipment, which can be used to make kebabs, barbecues, roasted vegetables and other barbecue foods.