Solar-Powered Comfort. Hybrid Flexibility. Whole-Home Climate Control.

The EG4 Hybrid Solar Window Unit delivers efficient, cost-saving cooling for spaces up to ~600 sq. ft. by combining traditional AC power with direct solar input. Designed for standard window installation, it automatically prioritizes solar energy to reduce grid usage while seamlessly supplementing with AC when needed. With smart app control, flexible operating modes, and ENERGY STAR certification, it’s a simple, effective way to stay cool while lowering energy costs.

Key Benefits

• Multiple Operating Modes: Run on Solar Only, Solar + Grid Power, or Grid Power Only—ideal for day or cloudy conditions.
• Smart Control Options: Manage settings via onboard controls, remote, or mobile app with real-time monitoring.
• Quiet, Efficient Cooling: Variable-speed compressor delivers consistent comfort with sound levels as low as 52 dB(A).
• Easy Installation: Fits standard double-hung windows and includes all necessary mounting hardware.
• Low Maintenance Design: Washable filter with built-in cleaning reminders keeps performance optimized.
• Certified Performance: ENERGY STAR certified and AHRI listed with a high-efficiency CEER of 14.2.

Use Cases

Ideal for homeowners looking to reduce cooling costs, off-grid or solar-assisted spaces, garages, workshops, and supplemental cooling in rooms up to 600 sq. ft. Perfect for those wanting to integrate solar without a full system upgrade.

Tech Specs

• Cooling Capacity: 12,000 BTU 
• AC Input: 115 VAC/60 Hz
• Efficiency: EER 10.4 | CEER 14.2
• Refrigerant: R32 
• Dimensions: 15 × 19 × 24.8 in.
• Weight: 66.1 lbs.
• Operating Temp: Indoor 61–90°F | Outdoor 50–131°F