Furnace Repair and Installation

Lennox manufactures the most comprehensive, feature-loaded furnace line-up in the heating industry. At the top of this furnace line-up is the Signature® Collection, including the Lennox SLP98V.

Energy Efficiency

  • The most efficient and quietest furnace you can buy!
  • ENERGY STARĘ 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

Quiet Operation

  • SilentComfort™ technology – delivers the ultimate in quiet, consistent heating-up to 7 times quieter than competitive models. Compare how quiet it is.
  • 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%

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