Cabinet Unit Heaters are made in floor and basic types such as standard and a field-installed conversion. It is available for ceiling applications. Heaters can be mounted on the surface, full recessed or semi-recessed. Heater can be mounted for air discharge up or down or with the heater mounted on end. The heaters have a tamper-resistant, two-position selector switch to select full heat at high fan speed and reduced heat at low fan speed.