This furnace produces 65% lower NOx emissions than standard models, meeting strict air quality requirements. Its two-stage operation provides balanced temperatures with lower energy use. Built with heavy-duty steel for durability, it can be paired with the iComfort S30 smart thermostat for advanced connectivity and maintenance features.
The Lennox SL280NV comes with a 10-Year Limited Warranty on covered components, with options for 20-Year or Lifetime Limited Warranties on furnace heat exchangers.








