Cyclone Xi provides outstanding hot water output, with dramatic savings on operating costs compared to units with standard 80% efficiency. A. O. Smith's leading-edge engineering delivers conventional power-vent or sealed combustion power direct-vent versatility, low NOx emissions and excellent space-saving characteristics. Powered anodes, standard on all Cyclone Xi models, provide superior tank protection for years of trouble free operation

• Intelligent control system with LCD display -provides detailed water heater status information, precise temperature control, built-in diagnostics, and run history information
• Submerged combustion chamber with helical heat exchanger coil - positioned in center of tank, surrounded by water to virtually eliminate radiant heat loss from chamber. Spiral heat exchanger keeps hot burner gases swirling, uses centrifugal force to maximize efficiency of heat transfer to water in tank. Spiral heat exchanger prevents scale and sediment from forming on water-side surface, which can reduce energy efficiency over time
• Powered anodes -provides long-lasting tank protection in varying water conditions, does not require maintenance or inspection
• PERMAGLAS ultra coat glass lining -exclusive process provides superior protection against corrosion. Both sides of heat exchanger coil are lined for protection against flue gas condensate inside coil
• Mechanical venting versatility - conventional power-venting or sealed combustion direct venting. Vents vertically or through sidewall. Direct-vent intake and exhaust pipe c