A concealed duct or slim duct unit is a thin air handler that is hidden above a ceiling or behind a wall, connected to short runs of ductwork and small grilles. This option provides the discreet look of central air with the localized control and efficiency of a mini-split system. These are frequently used in multi-zone setups where the homeowner wants to heat or cool multiple adjacent rooms without seeing multiple units. You can find these versatile air handlers in our concealed duct collection, available in various BTU sizes. They are a staple in our Cooper&Hunter lineup, offering high static pressure for flexible installation. This is the perfect middle ground for those who want to shop all ducted options while maintaining zone-by-zone control.