Rinnai 3-Unit Wall Hanging Rack – Natural Gas | Commercial Tankless Water Heating System

Experience unmatched performance and efficiency with the Rinnai 3-Unit Wall Hanging Rack – NG. Designed for commercial water heating, this pre-assembled modular rack system delivers a powerful, energy-efficient alternative to bulky tank-style water heaters and domestic boilers.

Each rack features three Rinnai Tankless Water Heaters, pre-mounted and interconnected for seamless operation. Built from lightweight aluminum, this system installs easily—fitting through standard 32" doorways and onto elevators—making it the ultimate plug-and-play solution for hotels, restaurants, schools, or large facilities needing reliable hot water delivery.

Key Features:

• Pre-Assembled & Ready to Install – Ships fully built with tankless units mounted and connected.
• Fast Commercial Replacement – Stocked and available for immediate emergency replacement.
• Lightweight & Durable Frame – Aluminum construction ensures long-lasting performance.
• High Heating Capacity – Delivers up to 597,000 BTU and can combine up to 24 units for 4.8 million BTU.
• Flexible Installation – Suitable for indoor or outdoor applications.
• Advanced Modulation Technology – Turn-down ratio up to 312:1 ensures precision heating and maximum efficiency.
• Compact Design – Fits through standard 32” doorways, ideal for tight commercial spaces.
• No ASME Inspection Required – Simplifies setup and compliance.
• Compatible Options – Works with or without storage tanks or recirculation loops.
  

What’s Included

• (1) Rinnai 3-Unit Wall Hanging Rack – NG
• (3) Pre-mounted Rinnai Tankless Water Heaters
• Wall-mounting bracket and installation hardware
• Pre-connected piping and gas manifold assembly
• User and installation manuals
  

Specification

Care & Maintenance Instructions

• Inspect and clean inlet water filters every 6 months for optimal flow.
• Check for gas leaks or loose fittings before and after operation.
• Keep vents and air intakes clear of debris for efficient combustion.
• For outdoor installations, protect units from freezing temperatures.
• Schedule annual professional service to maintain peak performance and warranty coverage.