The Rheem Prestige Series hybrid water heater has an Energy Factor of 2.45 and includes a full-color, backlit touchscreen control, which provides easily readable diagnostic information. The high-efficiency condensing power direct-vent water heater has an EF of 0.82. This water heater has a first-hour rating of 93 gal., and a recovery rate of 48.5 gal. The condensing tankless water heater operates at 94% thermal efficiency.