Aircon air mixer

This thing is a fan-powered air mixer that fits into a standard round air conditioner outlet.

These outlets use an adjustable cone to blow cold air along the ceiling, which provides a even temperature distribution in the room.

During winter however, while the aircon operates in reverse cycle for heating, this outlet arrangement only provides a hot ceiling.

The obvious solution is to remove the adjustable cone, which allows a column of warm air to exit the outlet, hit the floor and distr