Rheem Commercial Universal Gas Water Heaters epitomize adaptability, engineered to seamlessly integrate into constrained retrofit environments while meeting robust usage demands. The compact size and multiple water connections of the Universal model streamline installations, particularly beneficial in tighter commercial retrofits. Notably, a 120-Volt power source is requisite for this model. Key features encompass a space-saving design with short heights and narrow jacket diameters, alongside top, front, and rear water inlets/outlets, ensuring unparalleled installation flexibility. The System Sentinel LED diagnostic system provides comprehensive operational verification through sequential LED indicators. The tank's robust construction, comprising a proprietary steel formulation, patented multi-flue design, and double porcelain enamel coating, underscores superior heat exchange performance. Precision stainless steel burners, featuring a raised port design, facilitate quick inspection and maintenance with their drawer-like assembly. Additionally, a low-profile automatic flue damper reduces overall product height, while the built-in corrosion resistance ensures prolonged tank longevity. Serviceability is optimized with a factory-installed full-port brass drain valve and a hand-hole cleanout for lime/sediment deposit removal. The direct spark to pilot ignition system enhances energy efficiency by activating only when heat is required. Furthermore, the gas control system, inclusive of a thermostat with a range of 100°F to 180°F and a 24-Volt combination gas valve, ensures precise regulation and safety. Rheem's universal line offers a variety of configurations, ranging from 35 Gal. to 100 Gal. models, available in natural gas and liquid propane options to cater to diverse needs.