Durastar DRAL18F2A & DRA1H18S2A 18,000 BTU 20.6 SEER2 One-Way Ceiling Cassette Sirius Heat Heat Pump System (w/ Grille) - R454B

Durastar DRAL18F2A & DRA1H18S2A – 18,000 BTU R‑454B One-Way Cassette Mini‑Split Sirius Heat Heat Pump System
The Durastar DRAL18F2A and DRA1H18S2A mini-split system delivers powerful, energy-efficient comfort in a sleek one-way cassette design. Featuring Sirius Heat technology, it provides up to 100% heating capacity at 0°F and maintains reliable operation in extreme cold down to -22°F. Engineered for quiet performance and optimal efficiency, this system is ideal for larger rooms needing discreet, ceiling-mounted heating and cooling.

General Information
System Type: One-way cassette mini-split system (indoor & outdoor)
Indoor Model: DRAL18F2A
Outdoor Model: DRA1H18S2A
Capacity: 18,000 BTU Heating & Cooling
Room Size: Ideal for medium to large rooms
Operating Modes: Heating & Cooling
ENERGY STAR®: Yes
Refrigerant: R‑454B, pre-charged; supports up to 82 ft line set

Key Features

Cold-Climate Ready: Delivers 100% heating at 0°F; operates down to -22°F

Variable Speed Inverter: Efficient, stable performance with inverter-driven rotary compressor

Ultra-Quiet Operation: Indoor sound levels as low as 26 dB(A)

Follow Me Remote: Wireless remote with onboard sensor for precise comfort targeting

Smart Modes: Turbo, ECO, Active Clean, Sleep, Auto Restart, and 46°F freeze protection

Humidity Control: Maintains indoor comfort by regulating moisture levels

Integrated Base Pan Heater: Prevents freezing and enhances reliability in cold weather

Durability: Golden Fin anti-corrosive coil coating for long-lasting performance

Thermostat Compatibility: Works with DRSTAT101 wired thermostat

A2L Safety: Integrated refrigerant leak detection system

Specifications (Rated Conditions)
Cooling Capacity (Rated/Min–Max): 16,700 BTU / 5,700 – 19,000 BTU
Heating Capacity (Rated/Min–Max): 20,000 BTU / 8,900 – 22,000 BTU
SEER2 / EER2: 20.6 / 12.5
HSPF2: 12.2
COP at 47°F / 17°F / 5°F: 3.01 / 2.50 / 1.89
Sound Pressure (Indoor): 26–44 dB(A)
Sound Pressure (Outdoor): 59 dB(A)
Airflow (Indoor): 207–400 CFM
Operating Temp Range (Cooling/Heating): -22°F – 122°F / -22°F – 75°F
Electrical: 208/230 V • 1‑Phase • 60 Hz
Piping Size: Liquid 1/4″ • Gas 3/8″ • Max Length: 82 ft • Max Height Diff: 49 ft
Indoor Unit Dimensions/Weight: 50-5/16" x 13-3/16" x 9" • 45.2 lb
Outdoor Unit Dimensions/Weight: 35-1/16" x 13-7/16" x 26-1/2" • 99.9 lb

Included Components
DRAL18F2A one-way cassette indoor unit
DRA1H18S2A outdoor condenser
Wireless remote control
Decorative grille

Ideal For
Homeowners, builders, and HVAC pros seeking an ultra-efficient, cold-climate solution for larger living areas, additions, or retrofit applications where ceiling-mounted, quiet comfort is essential.