Infinity 96 Gas Furnace Models: 58MVB Ratings Energy Efficiency Quiet Level Durability Key Features Communicating furnace with Infinity intelligence Ultimate energy efficiency and cost savings—up to 96.6% AFUE ComfortHeat® technology IdealHumidity® ComfortFan™ technology QuieTech® noise reduction system Sealed combustion system Pilot-free Power Heat ignition High efficiency air filtration cabinet Lifetime heat exchanger limited warranty 5-year parts limited warranty Click here to read more. Infinity 80 Gas Furnace Models: 58CVX Ratings Energy Efficiency Quiet Level Durability Key Features Communicating furnace with Infinity intelligence Energy efficiency—80% AFUE ComfortHeat® technology IdealHumidity® ComfortFan™ technology QuieTech® noise reduction system Pilot-free Power Heat ignition High efficiency air filtration cabinet 20-year heat exchanger limited warranty 5-year parts limited warranty Click here to read more. Performance 80 Gas Furnace Models: 58CTX Ratings Energy Efficiency Quiet Level Durability Key Features Energy efficiency—80% AFUE ComfortHeat® technology ComfortFan™ technology QuieTech® noise reduction system Pilot-free Power Heat ignition High efficiency air filtration cabinet 20-year heat exchanger limited warranty 5-year parts limited warranty Click here to read more. 58STA/STX Energy Efficient AFUE at 80% Compact, multi-poise design for installation flexibility 20-year heat exchanger warranty Read more about 58STA

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