The Rheem XG50T12DU38U2 is a high-performance, 50-gallon tall natural gas water heater from Rheem’s Performance Platinum line, uniquely designed with an Ultra-Low NOₓ (10 ng/J) radiant burner for environmental compliance and cleaner combustion. It boasts a 12-year warranty on both tank and parts, along with 3 years of in-home labor coverage, offering long-term peace of mind. Energy efficiency is highlighted by its UEF of around 0.68, qualifying it for ENERGY STAR® status. It consistently delivers 86 gallons in the first hour and recovers at 38 GPH under a 90 °F rise—well-suited for families with moderate to high hot water demand.

This model features a unique powered damper system that opens during operation to ensure adequate combustion and closes afterward to preserve residual heat, enhancing efficiency. Additional smart design elements include a self-powered electronic diagnostic gas control valve, a maintenance-free burner system with air/fuel shut-off safety, and a self-cleaning function that reduces sediment buildup. Built for durability, it comes equipped with a premium-grade anode rod, integrated T&P relief valve, low-lead materials, and clearances for high-altitude use (up to 10,000 ft).