Evolution® System
Plus 90i™ Gas Furnace (Best)

• Product earned a Consumer Digest® Best Buy™
• Evolution® Control ready
• Ultimate cost-saving energy efficiency up to 96.6% AFUE
• Perfect Heat™ technology
• Perfect Humidity™
• Fan On Plus™
• QuieTech™ noise reduction
• Sealed combustion system
• Pilot-free PerfectLight™ ignition
• Filter cabinet
• 10-year parts limited warranty upon registration (355AAV)

Legacy™ Line Plus 90™ Gas Furnace (Better)

• Cost-saving energy efficiency-up to 95.5% AFUE
• Fan On Plus™ technology
• QuieTech™ noise reduction system
• Sealed, low-noise combustion system
• Pilot-free PerfectLight™ ignition
• High efficiency air filter cabinet
• 10-year parts limited warranty upon registration

Legacy™ Line Plus 80™ Gas Furnace (Good)

• Energy efficiency - Up to 80% AFUE
• Fan On Plus™ technology
• QuieTech™ noise reduction system
• High efficiency air filtration cabinet
• Pilot-free PerfectLight™ ignition
• Filter cabinet
• 20-year heat exchanger limited warranty
• 5-year parts limited warranty