Evolution System 355MAV The Plus 90i Highly efficient AFUE up to 96.6% Saves 23% in heating costs Variable speed fan system saves up to 9% in cooling costs Two stage heating Low speed allows for ultra-quiet operation and maximum comfort Increased comfort Temperature stays closer to thermostat set point Improved dehumidification Sealed combustion design reduces burner sound Media filter cabinet Hot surface ignition - pilot free design 5-year parts limited warranty Lifetime limited warranty on heat exchangers Read more about 355MAV Legacy Line 350MAV The Plus 90 Highly efficient 91.2% to 95.5% AFUE Saves 15% in heating costs Quiet operation Sealed combustion design reduces burner sound Media filter cabinet Hot surface ignition - pilot free design Lifetime limited warranty on heat exchangers Read more about 350MAV Preferred Series 312AAV(JAV) The Plus 80t Energy Efficient AFUE at 80% Two stage heating Low stage provides quiet operation, high stage for extreme winter weather Compact, multi-poise design for installation flexibility Media filter cabinet 5-year parts warranty 20-year heat exchanger warranty Read more about 312

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