A concealed-duct mini-split blends the low-profile look of central air with the efficiency and zoning of ductless systems. Only a slim grille shows, while the hidden air handler lives above ceilings or behind walls, preserving your décor and freeing up wall space.
On the flip side, specialized ductwork and concealment raise installed costs—often $2,500–$7,500—and require careful structural planning and professional labor. Filters and components live behind panels, making maintenance more involved, and performance can dip below freezing or above about 95 °F, sometimes needing backup heating or cooling.
This spring, TOSOT launches its newest duct concealed units—featuring 10″-high construction, internal condensate pumps, and flexible return-air options—for seamless integration and powerful comfort
What Is a Concealed Duct Mini-Split?
A concealed-duct mini-split consists of an indoor air-handling unit installed inside a drop ceiling, wall cavity, attic, or crawl space, connected via short flexible ducts to one or more discreet grilles. Unlike surface-mounted heads, the hidden unit tucks out of sight—leaving only a slim, customizable grille to blend with your décor.
Pros of Concealed Duct Mini-Splits
Discreet Appearance
By hiding the bulk of the system above ceilings or behind walls, only a low-profile grille is visible, preserving interior aesthetics without bulky wall-mounted units.
Space Efficiency & Zoned Comfort
Short-run ductwork tucks neatly into attics or crawl spaces, freeing wall real estate and accommodating open-concept layouts. Multi-zone capability lets you heat or cool up to three rooms independently—saving energy in unused spaces.
Cons of Concealed Duct Mini-Splits
Higher Upfront Costs & Complex Installation
Specialized ductwork, concealment panels, and structural planning push typical installed prices to $2,500–$7,500—often higher than simple wall-mounted units. Contractors need to reinforce ceilings or walls and coordinate precise duct runs, extending project timelines.
Maintenance Challenges
Hidden behind ceilings or walls, filters and components require panel removal or attic entry for routine cleaning and service, adding time and expense to maintenance visits.
Performance Limitations in Extreme Temperatures
Efficiency can decline when outdoor temperatures drop below freezing or climb above ~95 °F, sometimes necessitating supplemental heating or cooling to maintain comfort.
Why Consider TOSOT’s New Concealed Duct Mini-Split?
Launching this April, TOSOT’s latest concealed duct units pack medium static pressure capability into an 10″-high profile, with an internal condensate drain pump and flexible bottom-or-rear return-air options for seamless installation. Subscribe for early-bird pricing and be among the first to enjoy whisper-quiet, energy-efficient comfort that stays out of sight.
