Optimize your indoor or outdoor space with the Rinnai 2-Unit Interior Wall Hanging Rack, designed for natural gas tankless water heaters. Built with durable, lightweight aluminum frames and shipped fully assembled, this rack ensures fast installation and seamless integration. Compatible with multiple configurations, the TRW system delivers superior efficiency, flexible installation options, and reliable hot water for residential or commercial needs.

Whether you’re replacing an old system or upgrading to a modern tankless solution, this wall hanging rack supports up to 24 units and produces up to 4.8 million BTUs, with a thermal efficiency of 97%. It fits easily through standard doorways and elevators, making setup simple and convenient.

Key Features:

• Shipped fully assembled, ready to install
• Lightweight and durable aluminum frame
• Supports 2–3 tankless water heaters per rack, expandable to 24 units
• Quick installation with included wall-hanging bracket
• Indoor or outdoor installation compatible
• Modulation technology with turn-down ratios up to 312:1
• Compatible with or without storage tanks and/or recirculation loops
• Thermal efficiency: 97%
• Maximum BTUs: 398,000 per unit
• No ASME inspection required
• Fits through standard 32” doorways and elevators
  

What’s Included

• Rinnai 2-Unit Interior Wall Hanging Rack (TRW02CXIN)
• Wall-hanging installation bracket
• Installation instructions
  

Specifications

Care & Maintenance Instructions

• Inspect the rack and heaters periodically for any signs of corrosion or damage
• Clean with a soft, damp cloth; avoid abrasive cleaners
• Ensure proper venting and gas line maintenance as per Rinnai guidelines
• Schedule professional servicing annually for optimal efficiency