Fujitsu Airstage KUAS Slim Duct Indoor Unit – 18,000 Btu/h
The Fujitsu Airstage duct model ADUH18KUAS is a reliable 18,000 BTU heating and cooling unit, offering efficient performance with a SEER rating of 21.5. This unit provides 21,600 BTU of heating capacity, making it suitable for medium-sized spaces. With its smart design and maximum airflow of 553 CFM, it ensures comfortable temperatures throughout your home while maintaining energy efficiency.

The Fujitsu Airstage KUAS Slim Duct Indoor Unit – 18,000 Btu/h (model ADUH18KUAS), 18,000 Btu, is a Fujitsu Airstage duct that Aurora Star Tech supplies and installs for homes and businesses across the Greater Toronto Area. Below are the manufacturer specifications we use when sizing and installing this unit.
Key specifications
- Product Series: KUAS
- Unit Type: Ducted
- Zone Type: Multi Zone
- Cooling Capacity: 18000 Btu/h
- Heating Capacity: 21600 Btu/h
- Tons: 1.5 T
- SEER Rating: 21.5 SEER
- Energy Star: Yes
- Maximum Air Flow: 553 CFM
- Refrigerant (ASHRAE): R-32
- Supply Voltage: 208V, 230V
- Phase: Single Phase
- Hertz: 60Hz
- Minimum Circuit Amps (MCA): 0.59 A
- Liquid Line: 1/4"
- Suction Line: 1/2"
- Noise Level: 32 dBA
- Installation Type: Concealed
Aurora Star Tech handles the job from the site visit and sizing through supply, installation and start-up testing, so you deal with one local team from quote to commissioning.
Not sure if the Fujitsu Airstage duct is the right size for your home or building? Request a quote and our team will confirm the sizing, the electrical requirements and the installation details with you before anything is ordered.
| Brand | Fujitsu Airstage |
| Product Series | KUAS |
| Unit Type | Ducted |
| Zone Type | Multi Zone |
| Cooling Capacity | 18000 Btu/h |
| Heating Capacity | 21600 Btu/h |
| Tons | 1.5 T |
| SEER Rating | 21.5 SEER |
| Energy Star | Yes |
| Maximum Air Flow | 553 CFM |
| Refrigerant (ASHRAE) | R-32 |
| Supply Voltage | 208V, 230V |
| Phase | Single Phase |
| Hertz | 60Hz |
| Minimum Circuit Amps (MCA) | 0.59 A |
| Liquid Line | 1/4" |
| Suction Line | 1/2" |
| Noise Level | 32 dBA |
| Installation Type | Concealed |
| Colour | Silver |
| Product Length/Depth | 30 " |
| Product Width | 45 " |
| Product Height | 11 " |
| Product Weight | 57 lb |
| Shipping Length/Depth | 30 " |
| Shipping Width | 45 " |
| Shipping Height | 11 " |
| Shipping Weight | 57 lb |
