Rheem’s new IKONIC high efficiency condensing gas tankless water heater delivers a 0.96 UEF[i], resulting in up to a 36% reduction in energy use and carbon footprint and up-to 65% reduction in NOx emissions. Also featuring a built-in recirculation pump (SR models), Rheem IKONIC offers homeowners no wait access to continuous hot water, preventing up-to 12,000 gallons of water from being wasted down the drain each year.   With integrated Wi-Fi Technology, Rheem IKONIC provides users with complete control of the unit from anywhere. This includes temperature adjustments, energy usage tracking, and modifying recirculation modes - all from a smart phone with the EcoNet Mobile App.