Mini split types, room by room.
Tap any room to see which indoor unit fits there, where it hides, and what you would actually see. Tap a unit to see the real thing. For a comparison of two manufacturers, see Mitsubishi vs. Carrier.
Hidden ducted air handler
- Hides in
- Attic, basement, or a utility closet.
- You’ll see
- One ceiling grille per bedroom, roughly the size of a sheet of paper. No unit on the wall.
- Why here
- Bedrooms want quiet and clean walls. A grille fed from the attic air handler moves conditioned air without an indoor unit in the room, and the fan is a floor away.
Every Fujitsu ductless or ducted mini split system starts the same way: one outdoor heat pump, then the right indoor unit for each room. The wall unit is the type most people picture. The other four are built to disappear into ceilings, soffits, attics, and knee walls. Armus Mechanical installs all of them across Southeastern Massachusetts, Cape Cod, the South Shore, and Rhode Island.
Six Fujitsu mini split types
Two are visible by design. Three hide in the structure. One sits outside and runs all of them.
Wall unit
- Hides in
- Nothing to hide. Mounts high on the wall.
- You’ll see
- A low-profile indoor unit near the ceiling and a line-set cover outside.
- Best for
- Additions, sunrooms, bonus rooms, and any room with a free wall.
Hidden ducted air handler
- Hides in
- Attic, basement, or a utility closet.
- You’ll see
- A few ceiling grilles and a thermostat.
- Best for
- Whole floors with several rooms, bedrooms, homes that want the look of central air.
Slim duct
- Hides in
- A soffit, dropped ceiling, or closet top with about 8 inches of depth.
- You’ll see
- One or two grilles.
- Best for
- Kitchens and dining areas, hallways feeding two or three rooms, spaces with no attic access.
Ceiling cassette
- Hides in
- The joist bay above the ceiling.
- You’ll see
- A flush 2 ft × 2 ft panel with four vents.
- Best for
- Open living areas, great rooms, kitchens with no free wall.
Floor console
- Hides in
- Nothing to hide. Sits low on the wall where a radiator would.
- You’ll see
- A console under the window, about radiator height.
- Best for
- Finished basements, rooms with knee walls or large windows, radiator replacements.
Multi-zone outdoor unit
- Hides in
- Outside, on the garage side or behind plantings, on a pad or wall bracket.
- You’ll see
- One outdoor unit for the whole house instead of one per room.
- Best for
- Houses mixing several indoor types on one system, typically up to five zones.
Indoor unit comparison
| Type | You’ll see | Space it needs | Serves |
|---|---|---|---|
| Wall unit | The unit, high on the wall | A free wall; exterior wall is simplest | 1 room |
| Ducted air handler | A few ceiling grilles | Attic, basement, or closet, plus duct paths | A whole floor, 3 to 5 rooms |
| Slim duct | One or two grilles | About 8 in. above a soffit or dropped ceiling | 1 to 3 adjacent rooms |
| Ceiling cassette | A flush 2 × 2 panel | About 10 in. of ceiling depth | 1 large open room |
| Floor console | A low console under the window | About 2 ft of wall at floor level | 1 room |
All five connect to one multi-zone outdoor unit. Mixing types on a single system is normal: a ducted floor upstairs, a cassette downstairs, a wall unit in the addition.
Cold-climate heat pumps and Mass Save rebates
Fujitsu cold-climate models are rated to keep heating at −15°F outdoors and hold rated capacity around 5°F, which is what a Southeastern Massachusetts winter asks of them.
Armus Mechanical is a Mass Save® Approved Contractor and a Fujitsu Elite Contractor. Qualifying cold-climate systems are eligible for Mass Save rebates and 0% HEAT Loan financing. We size the system and handle the rebate paperwork.
Rhode Island homes: ask about Rhode Island Energy heat pump incentives.
Wall unit
- Hides in
- Nothing to hide. Mounts high on the wall.
- You’ll see
- A low-profile indoor unit near the ceiling and a line-set cover outside.
- Best for
- Additions, sunrooms, bonus rooms, and any room with a free wall.