6-year limited Tank warranty, 6-year parts warranty for Residential applications Power Venting Made Simple - Thru-the-Wall or Thru-the-Roof power venting using either 2” or 3” PVC, ABS or CPVC vent pipe. Intelli-Vent™ Gas Control - Advanced electronics for more precise control of water temperature and easy to understand system diagnostics. Quiet and Efficient Blower - Factory-installed 6-foot power cord with standard 3-prong male connector provided. Electrical requirements; 110/120 VAC power source, less than 5 amp draw. Combination Thermostat/ECO - Utilizes an intermittent ignition gas valve (no standing pilot) with thermistor temperature sensor and built-in high temperature cut off. LimeFighter® Dip Tube - Helps reduce lime and sediment buildup, maximizes hot water output. Made from long-lasting PEX cross-linked polymer Durable, Ultra-Low NOx Burner Construction - Components of the burner system are made of a strong inconel alloy and stainless steel that is designed to withstand high temperature applications. All burner components have undergone rigorous reliability testing to ensure long life. Anode Rod - Exclusive anode has a stainless steel core, protects tank against corrosion longer versus standard steel anodes. FVIR Compliant - Equipped with a flame arrestor that provides smooth ignition and ensures that in the event of accidental exposure to flammable vapors, that vapors are safely combusted inside the sealed chamber. Durable, Tamper-Resistant Brass Drain Valve Code Compliance - Design Certified by CSA. Meets CEC codes. Meets the Federal Energy Efficiency standards effective January 20, 2004, according to the National Appliance Energy Conservation Act (NAECA) of 1992 and meets the thermal efficiency and standby loss requirements of the U.S. Department of Energy and current edition of ASHRAE/IESNA 90.1.