Professional with the Guardian System--------------------------------------------------------------------------------Available Capacities:40, 50 gallon Tall - 40 gallon short modelsAvailable Warranties:8-year limited tank and parts warranty with a professional installation: With ProtectionPlus the 8-year limited tank warranty becomes 12 year!--------------------------------------------------------------------------------Features:Guardian System - engineered to exceed ANSI standards for flammable vapor ignition resistance - a Rheem exclusive One-of-akind air/fuel shut-off device offers double protection Maintenance free - superior air filtration prevents the flame arrestor from becoming clogged by lint, dust, and oil. Low NOx design for low nitrous oxide emissions. EverKleen patented system fights sediment build-up, reduces fuel costs, provides more hot water Easy to light- no matches required Energy efficient - more hot water at a low operating cost All modes are certified for applications up to 6,000 feet above sea level. Some models certified up to 10,200 feet above sea level Longer life - patented magnesium anode rod design incorporates a special resistor that protects the tank from rust Brass drain valve and temperature and pressure relief valve are included Upgrade your warranty with ProtectionPlus and your 8 year becomes a 12 year water heater.
