Blaze 42 Inch Vent Hood pizza oven DUAL WALL CONSTRUCTION Our dual walled DUAL WALL CONSTRUCTION Our dual walled construction pulls air from the bottom and up through the vent holes that reburns smoke as it rises to provide a more enjoyable BLZ PROPB IJ: Blaze Professional LUX Power Burner Insulated Jacket Required for safely installing power burner into combustible islands BLZ PROPB IJ Dimensions 9 The Blaze Outdoor Vent Hood pairs a deeper hood canopy with a powerful twin motor system to effectively clean the air from the grilling area Ventilating an outdoor cooking space can be challenging due to the increased amount of smoke produced by outdoor cooking equipment