Introducing the Rheem RTGH Series Super High Efficiency Condensing Tankless Water Heater. With the same proven performance both plumbers and homeowners trust, the Rheem RTGH Series Super High-Efficiency Condensing Tankless Water Heater now offers a new modern design. These smaller and lighter units are more efficient than a 50-gallon tank water heater by up to 52%, earning our Sustainability Standout seal. Its enhanced features like integrated digital controls, built-in EcoNet Wi-Fi and LeakGuard technology deliver continuous hot water. Industry-exclusive advantages like Overheat Film Wrap, a Water Saving setting and Hot Start Programming ensure the unit operates efficiently and sustainably. An outdoor conversion kit (sold separately) is also available, making it a field convertible indoor/outdoor model for increased installation flexibility. Learn more about the advantages of going tankless and the available models at


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