Durastar DRU1H42S2A 42,000 BTU Sirius Heat Side Discharge Heat Pump Outdoor Unit - R454B

Durastar DRU1H42S2A – 42,000 BTU R-454B Sirius Heat™ Single-Zone Heat Pump Outdoor Unit
Deliver high-capacity, efficient comfort with the Durastar DRU1H42S2A, a 42,000 BTU Sirius Heat™ single-zone heat pump outdoor unit engineered to maintain heating performance down to –22 °F, ensuring reliable operation year-round.

Cold-Climate, Heavy-Duty Design
Measuring 38-9/16" x 15-5/8" x 38-3/8" and weighing 201.06 lb , this rugged unit includes a base-pan heater and Golden Fin anti-corrosion coil for long-term durability and dependable low-temperature performance.

Quiet, Eco-Friendly Operation
Runs at a quiet 65 dB using a variable-speed rotary inverter compressor and low-GWP R-454B refrigerant—providing strong performance with reduced environmental impact.

High Efficiency & Year-Round Comfort
Rated for full heating capacity at 0 °F and capable of operating to –22 °F, this model achieves up to 16.7 SEER2 and 11.7 EER2 , delivering dependable heating and cooling in all climates.

Smart Diagnostics & Protection
Features a refrigerant leak detection system, automatic heating/cooling changeover, anti-corrosive Golden Fin coating, and self-diagnostics for consistent, low-maintenance performance.

System Compatibility & Warranty
Pairs with compatible Durastar indoor units such as the DRUM4260S2A air handler. Protected by a 10-year parts warranty when installed by a licensed professional and properly registered.

Ideal Use Cases
Perfect for large single-zone applications in homes, offices, and commercial spaces needing high-capacity, efficient heating and cooling—even in harsh winter conditions.