Preferred™ Series Plus 90t™ Gas Furnace (Best)

• Outstanding energy savings-up to 93% AFUE
• Perfect Heat™ technology
• Fan On Plus™ technology
• QuieTech™ noise reduction system
• Sealed combustion system
• Pilot-free PerfectLight™ ignition
• Filter cabinet

Preferred™ Series Plus 80t™ Gas Furnace (Better)

• Energy efficiency-Up to 80% AFUE
• Perfect Heat™ technology
• Fan On Plus™ technology
• QuieTech™ noise reduction system
• Pilot-free PerfectLight™ ignition
• High efficiency air filtration cabinet
• 10-year parts and 20-year heat exchanger limited warranty up...on registration (312AAV)
• 10-year parts and 20-year heat exchanger limited warranty up...on registration (312JAV)

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