Furnaces
Lennox® gas furnaces promise unsurpassed comfort. Innovative design and technology automatically adjusts outputs in precise and minute increments to hold temperatures exactly where you want them.
As quiet as they are efficient, Lennox furnaces combine advanced technology, engineering and sound-absorbing insulation to ensure whisper-quiet operation.
Offering industry-leading efficiencies, Lennox furnaces can help save you hundreds of dollars in utility costs every year. Some Lennox furnaces are ENERGY STAR® certified, which may qualify you for federal energy tax credits and local utility rebates. No other manufacturer can match our products for efficiency, comfort, precision, quiet and customer satisfaction. Available in variety of types, Lennox offers a range of options to meet everyone’s heating needs.
Learn about Lennox Ultra Low NOx Solutions.
Lennox Ultra Low Emission Gas Furnaces
SL297NV Variable-Speed, Ultra-Low Emissions Gas Furnace
First-in-class, lowest emission furnace on the market* Limited Availability in California.
Efficiency Rating (AFUE): up to 97.5
ENERGY STAR® Qualified
SL280NV Variable-Speed, Ultra-Low Emissions Gas Furnace
First-in-class, lowest emission furnace on the market* Limited Availability in California.
Efficiency Rating (AFUE): 80
EL195NE Ultra-Low Emissions Gas Furnace
First-in-class, lowest emission furnace on the market* The EL195NE is a new gas furnace product that’s available in select parts of California.
Efficiency Rating (AFUE): up to 95
ENERGY STAR® Qualified
EL180NE Ultra-Low Emissions Gas Furnace
First in class, lowest emission furnace on the market*
Efficiency Rating (AFUE): up to 80
* Based on sound pressure levels during steady-state, high-fire and low-fire operation of Lennox® SLP99UH070XV36B as of March 2020 at mid-point temperature rise and minimum external static pressure when set up per Section 4.4.4 of AHRI 260-2012. Based on AFUE efficiency rating of Lennox SLP99UH090XV60C and leading competitive units listed in AHRI directory as of December 2019. Efficiency ratings established per test standard ANSI/ASHRAE 103-1993.
