Electric Furnaces Model: CB40
Each Furnace comes with:
Quiet Operation:
- SilentComfort™ technology—delivers the ultimate in quiet, consistent heating—up to nine times quieter than competitive models
- Variable speed blower motor—ramps up and down slowly so there’s no sudden, noisy blast of air at start-up
- 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
- Secondary heat exchanger—allows the furnace to achieve high efficiency levels by capturing additional heat
- Variable speed blower motor—provides a quiet, consistent flow of air for enhanced temperature and humidity control
- Variable-capacity operation—goes beyond typical low and high two-stage operation, varying output from 40% to 100%
Energy Efficiency:
- Efficiency rating of 95% AFUE on all models, all positions—can save you hundreds of dollars each year, compared to standard furnaces
- ENERGY STAR—meets or exceeds EPA guidelines for energy efficiency ® qualified
- Variable speed inducer—automatically adjusts to match the system requirements, maintaining balanced combustion and efficiency
- Dual-fuel—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 capability
- 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—direct-readout diagnostics allow simple, quick troubleshooting
- Limited Lifetime Warranty on heat exchanger
- 10-Year Limited Warranty on covered components
*Not all system combinations apply. Verify





