Installation Guide
Page 12
... vent. 12 Flexible metal vent: (Acceptable only if accessible to avoid sagging and kinking that may obstruct exhaust (such as flowers, rocks, bushes, or snow). Review Vent System Chart and if necessary, modify existing vent system to Venting Requirements. Dryer exhaust must not be fully extended and supported in enclosed walls...
... vent. 12 Flexible metal vent: (Acceptable only if accessible to avoid sagging and kinking that may obstruct exhaust (such as flowers, rocks, bushes, or snow). Review Vent System Chart and if necessary, modify existing vent system to Venting Requirements. Dryer exhaust must not be fully extended and supported in enclosed walls...