The most efficient and quietest furnace you can buy

Features

Quiet Operation

• SilentComfort™ technology—delivers the ultimate in quiet, consistent heating—up to seven times quieter than competitive models1
• Variable speed blower motor—provides a quiet, consistent flow of air for enhanced comfort, efficiency and humidity control
• Fully insulated cabinet—patented noise-reducing construction further minimizes operating sound to an industry-leading low level

Home Comfort

• Precise Comfort™ technology—automatically adjusts fan speed, heat and airflow capacity in increments as small as 1% for the ultimate in temperature control
• AirFlex™ technology—offers custom settings which can be selected to meet each home's specific year-round comfort requirements
• Zoning-compatible design—works with Lennox' Harmony III™ zoning system to deliver the right amount of comfort for up to four zones
• Variable-capacity operation—goes beyond typical low and high two-stage operation, varying output from 35% to 100%

Energy Efficiency

• Efficiency rating of up to 98.2% AFUE —can save you over $800 dollars each year*, compared to standard furnaces
• ENERGY STAR® qualified—meets or exceeds EPA guidelines for energy efficiency
• Self-calibrating variable speed inducer—automatically adjusts to match the system requirements, ensuring cleaner combustion and efficient operation
• Stainless Steel secondary heat exchanger—has a robust, time-tested design that captures waste heat, allowing the furnace to achieve industry-leading efficiency levels
• Dual-fuel capability—can be combined with an electric heat pump to enhance comfort and fuel efficiency by alternating between electric and gas heat, optimizing energy use and minimizing heating costs
• icomfort™-enabled technology—allows the furnace, when installed with the easy-to-use programmable icomfort Touch thermostat, to exchange information and make adjustments as needed to optimize performance and efficiency**
• This product qualifies for a tax credit under the American Recovery and Reinvestment Act.***

Reliable Performance

• Duralok Plus® heat exchanger—made of patented ArmorTuf™ steel to ensure high reliability and efficiency
• SureLight® igniter—silicone nitride construction ensures long product life and reliable operation
• SureLight control board (icomfort™ compatiable)—controls all furnace operations to ensure high reliability and efficiency. Direct-readout diagnostics for simple, quick troubleshooting
• Limited Lifetime Warranty on heat exchanger
• 10-Year Limited Warranty on covered components