Concealed Ducted Systems
Completely hidden HVAC. Only discreet grilles visible. Ideal for luxury renovations and historic homes.
Concealed ducted mini-split systems provide the ultimate in hidden HVAC. The entire indoor unit installs above the ceiling, in a closet, or in an attic space with only discreet supply and return grilles visible. This is the premium choice for luxury renovations, historic homes, and any space where visible HVAC equipment is unacceptable.
Completely Invisible Climate Control
Concealed ducted systems take the mini-split concept to its logical conclusion - all the benefits of ductless HVAC with none of the visible equipment. The compact indoor unit hides completely out of sight, delivering conditioned air through small ceiling or wall grilles that blend seamlessly with your interior design.
This approach is particularly valuable for:
- Historic homes where period authenticity matters
- Luxury renovations where clean aesthetics are paramount
- Modern minimalist designs that eliminate visual clutter
- High-end bedrooms where silent, invisible climate control enhances comfort
- Open concept spaces where wall units would be visually intrusive
How Concealed Ducted Systems Work
The indoor unit (sometimes called a "slim duct" or "low static" unit) installs horizontally above the ceiling or vertically in a closet. A small blower motor pushes conditioned air through short duct runs to supply grilles in the ceiling or high on walls. Return air flows back through a separate grille to complete the cycle.
Unlike traditional central air ducting that runs throughout the house, concealed ducted mini-splits use short duct runs - typically under 15 feet. This keeps installation manageable while providing the hidden HVAC benefit.
Perfect for Multi-Room Distribution
One concealed ducted unit can supply multiple rooms through branched ductwork. Our 12K BTU model, for example, can comfortably condition a master bedroom, bathroom, and walk-in closet from a single unit installed in the attic. This eliminates the need for multiple wall units while providing even temperature distribution.
Ultra-Quiet Operation
Concealed ducted systems are among the quietest HVAC options available. With the indoor unit hidden above the ceiling, sound levels in the living space drop dramatically. Our units operate at just 24-26 dB - quieter than a whisper. This makes concealed ducted ideal for bedrooms where silent operation is essential for quality sleep.
Installation Requirements
Concealed ducted systems require more planning than wall-mount units:
- Ceiling space: The indoor unit needs 8-12 inches of vertical clearance
- Duct routing: Short duct runs to supply grilles must be planned
- Condensate drainage: Built-in pump handles water removal
- Service access: A small access panel is needed for filter maintenance
Many homeowners work with an HVAC contractor on the ductwork design, then complete the refrigerant connection themselves using our pre-charged linesets. The ductwork itself uses standard flexible ducting available at home improvement stores.
Grille Options
Supply and return grilles come in many styles to match your décor:
- Linear slot diffusers for modern, minimal aesthetics
- Traditional registers that match existing home décor
- Round diffusers for ceiling installation
- Paintable grilles that disappear into the ceiling
The small size of the grilles (typically 6" x 6" to 8" x 24") makes them far less visually intrusive than wall-mounted indoor units.
Technical Specifications
Our concealed ducted systems match the performance of our wall-mount units:
- 22 SEER2 efficiency rating
- Heating down to -13°F outdoor temperature
- Adjustable static pressure for various duct configurations
- WiFi or wired thermostat control options
- Pre-charged linesets for simpler installation
- Built-in condensate pump
What's Included
Each concealed ducted system includes:
- Slim duct indoor unit
- Outdoor condenser unit
- Pre-charged 16.5 ft lineset
- Wireless remote control (wired thermostat optional)
- Built-in condensate pump
- Installation hardware and instructions
Note: Ductwork and grilles are sourced separately to match your specific installation requirements.
Choose from our 9K BTU (up to 450 sq ft) or 12K BTU (up to 600 sq ft) models. Both include our comprehensive 5-year parts warranty and 24/7 technical support.


