Mounting your dehumidifier to the wall, not only saves floor space, it is also useful for those who wish to drain the water collected by the dehumidifier continuously. When using continuous drainage via a hose on its own, the water is drained from the dehumidifier via gravity. This means, the hose must go downhill, without any kinks or blockages, in order to allow the water to flow - mounting your dehumidifier to the wall is the best way to set your dehumidifier up in this application! 

Attaching a hose and allowing water to continually drain is particularly useful for those who are not able to regularly empty the water tank, for example if your dehumidifier is in a holiday home, on a boat or caravan (or if you just don't want to!).