Rinnai CU160iN Commercial Tankless Water Heater, 9 GPM

Product Description

The RINNAI cu160in is a commercial-grade condensing tankless water heater built for high-demand, continuous hot water delivery in large-scale applications. Rated at a maximum flow rate of 9 GPM, this unit provides on-demand hot water without the standby losses associated with storage tank systems. Designed for indoor installation and fueled by natural gas, the cu160in features integrated Wi-Fi capability for remote performance monitoring across multiple units. Its condensing design recovers additional heat from exhaust gases, contributing to higher thermal efficiency. Licensed plumbers and mechanical contractors are the primary installers for this class of commercial equipment.

The cu160in is suited for commercial and institutional settings where reliable, high-volume hot water supply is critical. Typical applications include restaurants, hospitality properties, educational institutions, and multifamily residential buildings. The unit supports recirculation systems, making it appropriate for larger plumbing layouts where maintaining line temperature reduces wait time and water waste. Multiple venting configurations are supported, giving installers flexibility to work within existing mechanical room constraints or to optimize routing in new construction projects.

Key Features

• Maximum domestic hot water flow rate of 9 GPM for high-demand commercial applications
• Condensing technology recovers exhaust heat for improved thermal efficiency
• Wi-Fi capable for remote monitoring and performance management across multiple units
• Recirculation capable, supporting hot water loop systems in larger buildings
• Multiple venting options provide installation flexibility for new builds and retrofits
• Ultra Low NOx rated and SCAQMD approved for use in air quality-sensitive jurisdictions

Compatibility

Designed for indoor installation on natural gas supply systems in commercial and multifamily applications requiring continuous high-volume hot water delivery.

Installation Notes

Installation must be performed by a licensed plumber or mechanical contractor in accordance with local codes and the applicable sections of the International Plumbing Code. Shut off gas supply and disconnect electrical power before servicing or making connections. Verify that the gas line is sized to meet the flow demand requirements of the unit and any additional appliances on the same supply. Venting must be installed per the manufacturer specifications and local mechanical codes to ensure safe exhaust handling for a condensing appliance.

Technical Specifications

• Gas Type: Natural Gas
• Maximum Hot Water Flow Rate: 9 GPM
• Recirculation Capable: Yes
• Wi-Fi Capable: Yes
• Installation Type: Indoor
• NOx Certification: Ultra Low NOx, SCAQMD Approved
• Product Height: 31.3 inches
• Product Width: 18.5 inches
• Product Depth: 11.45 inches
• Product Weight: 62 pounds

Standard Information

• Brand: RINNAI
• Manufacturer Part Number: cu160in