EG4 Multizone Mini-Split 18k (Indoor Unit) | R32

18K Multi-Zone Mini Split Indoor Unit

Quiet, efficient, and built to grow with you. The EG4 18K Hybrid Multizone Mini Split indoor unit delivers reliable heating and cooling for spaces up to 1,000 sq. ft. in a slim, wall-mounted package — and because it’s designed for multi-zone expansion, you can add more indoor units over time without replacing the outdoor unit.

It’s a natural fit for hybrid AC/DC solar systems, making it one of the cleanest ways to run climate control off-grid without the startup surge headaches of a traditional PSC-motor AC system.

Why it works well:

• Covers spaces from roughly 700–1,000 sq. ft. per unit — primary bedrooms, open living areas, large additions, or workshop spaces
• Slim 37.4 × 9.1 × 12.2 in. profile and lightweight build keep the install fast and tidy
• R32 refrigerant for efficient operation at smaller environmental impact
• Heats and cools year-round from a single unit

Specs at a glance: 18,000 BTU · R32 refrigerant · 20.94 lbs.

Design and Sizing: EG4-Multi-Zone-Mini-Split-Design-and-Sizing-Guide

Note: At least two indoor units must be installed for a single outdoor unit. Where total air handler capacity is greater than compressor capacity, the total heating or cooling capacity across all zones will be the available capacity of the compressor unit. You will need 1 lines set and 1 comm cable per indoor unit.