The Rheem XG40S12DM40U0 is a 40-gallon short natural gas water heater from Rheem’s Performance Platinum series, designed for indoor installation with powered damper venting for enhanced energy efficiency. With a recovery rate of up to 40.4 gallons per hour and a first-hour rating near 72 gallons, it reliably supports small to medium households. It features a 4.0 GPM flow rating, a 12-year limited warranty, and advanced safety systems, including a flammable vapor sensor and overheat protection. Its short 50.5-inch profile makes it ideal for low-clearance installations without sacrificing performance. Grab yours now!