Durastar DRU1H18S2A 18,000 BTU Sirius Heat Side Discharge Heat Pump Outdoor Unit - R454B

Durastar DRU1H18S2A – 18,000 BTU R-454B Sirius Heat™ Single-Zone Heat Pump Outdoor Unit
Deliver reliable, energy-efficient performance with the Durastar DRU1H18S2A, an 18,000 BTU Sirius Heat™ single-zone heat pump outdoor unit engineered to maintain heat capacity down to –22 °F, providing optimal comfort in small to medium spaces.

Cold-Climate, Ultra-Compact Design
Measuring 35" x 13-7/16" x 26-1/2" and weighing 101.41 lb , this durable unit features a base-pan heater and Golden Fin anti-corrosion coil to ensure longevity and low-temperature readiness.

Quiet, Eco-Friendly Operation
Operates at a quiet 59 dB using a variable-speed rotary inverter compressor and low-GWP R-454B refrigerant—delivering efficient performance with minimal environmental impact.

High Efficiency & Year-Round Comfort
Rated for full heating capacity at 0 °F and capable of operating down to –22 °F, this unit achieves up to 19 SEER2 and 12.5 EER2 , ensuring dependable comfort in all seasons.

Smart Diagnostics & Protection
Equipped with a refrigerant leak detection system, auto-changeover between heating and cooling, anti-corrosive Golden Fin coating, and self-diagnostics for reliable, low-maintenance performance.

System Compatibility & Warranty
Pairs with compatible Durastar indoor units, including the DRUM1824S2A air handler. Backed by a 10-year parts warranty when installed by a licensed professional and properly registered.

Ideal Use Cases
Perfect for single-zone installations such as small homes, apartments, offices, or studios in cold climates where compact, efficient heating and cooling are essential—even at sub-zero temperatures.