Superior WXS2000 Series Outside Air Kit Wood Burning Stoves UZISuperior WXS2000 Series Outside Air Kit Wood Burning Stoves UZI Product Details Outside Air Kit (4 I. D. x 10 ft. long insulated flex) The Superior WXS2000 Series Outside Air Kit (UZI) for wood burning stoves is designed to enhance efficiency by providing a direct air supply from outside the home. This reduces reliance on indoor air for combustion, improving both stove performance and indoor air quality. The kit includes all necessary components for