€¢ Used to connect woodstove to entrance of chimney €¢ Easy to close snap-lock system €¢ Crimped end should be oriented toward the stove to allow for condensation and creosote to flow down inside the pipe >> Used to connect woodstove to entrance of chimney. Easy to close snap-lock system. Crimped end should be oriented toward the stove to allow for condensation and creosote to flow down inside the pipe ."