Built with commercial applications in mind, the Rinnai Tankless Rack System (TRS) is a complete system that simplifies installation and offers customers peace of mind through built-in redundancy. The TRS can be used with or without storage tanks and works with large recirculating loops. Engineered to meet the needs of any job, the Rinnai TRS has an input range of 400,000 to 4.9 million Btu and touts a turn-down ratio of 327:1. The TRS, available in free-standing or wall-mounted options for indoor or outdoor applications, can be ordered, built and shipped to any location in the United States and Canada, including the job site. Indoor installations can be configured with either Rinnai’s new Common Venting System—up to 100 feet—or its polypropylene concentric venting. The Rinnai TRS fits through a standard 32-inch doorway for easy moving and installation on the job site. Constructed of powder-coated aluminum, the TRS racks stand up to the most demanding commercial environments, while minimizing weight. Rinnai Ultra Series Condensing Tankless Water Heaters, specified for use with the TRS, earn an Energy Factor (EF) of .95, which allows for increased operating profits for building owners and managers.