A. O. Smith’s tankless rack system, fitted with CT-199 tankless units, simplifies a wide variety of tankless configurations. It provides prefabricated gas and water lines that link as many as 20 high-efficiency condensing tankless heaters. The system simplifies heater maintenance because each unit can be easily isolated while other heaters continue normal operation. The tankless rack is built on a durable, lightweight anodized aluminum frame and connects to schedule 40 PVC pipe for intake and exhaust. It works with the industry’s lightest condensing tankless heaters, an A. O. Smith ENERGY STAR-qualified model that achieves a UEF of 0.95.

A. O. Smith. www.hotwater.com