Della 12K BTU Ceiling Cassette Mini Split – 22 SEER2, -13°F Heat Pump
$1,275.96 on Amazon.com (as of October 19, 2026, 12:34 AM EST) View details ↗
The **Della 12,000 BTU ceiling cassette mini split** delivers powerful, energy-efficient cooling and heating for spaces up to **550 sq. ft.**, making it ideal for offices, retail stores, restaurants, and warehouses. With a **22 SEER2 rating**, this **Energy Star-certified** system ensures **UL/ETL and AHRI compliance**, maximizing efficiency while minimizing energy costs. The **inverter-driven heat pump** operates reliably in extreme cold down to **-13°F (-25°C)**, thanks to a **bottom-mounted heater** that prevents frost buildup—guaranteeing consistent comfort year-round.
Designed for **360° airflow** with **8-way adjustable louvers**, this **ductless system** distributes air evenly, eliminating hot or cold spots in any room layout. Quiet operation at just **32 dB(A)** ensures minimal disruption, while **smart features** like the **Della App, Alexa compatibility, and geolocation control** let you adjust settings remotely—starting the unit automatically before you arrive for optimal comfort. Additional conveniences include a **refrigerant leak sensor, 24-hour timer, multiple fan speeds, sleep mode, and auto-cleaning PureClean technology** to maintain fresh air quality. The **pre-charged 16 ft. copper tube kit** (supports up to 25 ft. without refrigerant adjustment) simplifies installation, though **professional setup is required** for optimal performance.
| Cooling Capacity | 12,000 BTU/h |
|---|---|
| SEER Rating | 22 SEER2 |
| Minimum Operating Temperature | -13°F (-25°C) |
| Covered Area | Up to 550 sq. ft. |
| Installation Kit Length | 16 ft. copper tube (supports up to 25 ft. without refrigerant adjustment) |
| Noise Level | 32 dB(A) |






