A dependable choice for mid-sized households, the Rheem XE50M06ST45U1 is a 50-gallon medium-profile electric water heater from the Performance Standard series, featuring dual 4,500 W copper heating elements and an isolated tank design that helps minimize standby heat loss. With a high Uniform Energy Factor (UEF) of approximately 0.93 (US), it delivers efficient performance—including up to 61 gallons in the first hour and a recovery rate near 21 gallons per hour at a 90°F rise. Designed for practicality and longevity, it includes a premium-grade anode rod, over-temperature protection, a T&P relief valve, and a convenient junction box located above the elements. Backed by a robust 6-year warranty on the tank and parts, plus 1-year in-home labor coverage, this model balances energy efficiency, capacity, and reliability.