Footnotes

  1. The quietest and most efficient furnace you can buy (SLP98V)
    Based on sound pressure levels during steady-state, high-fire and low-fire operation of Lennox SLP98UH070XV36B and leading competitive units as of July 2013 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 SLP98UH090XV60C and leading competitive units listed in AHRI directory as of March 2015. Efficiency ratings established per test standard ANSI/ASHRAE 103-2007.
  2. The quietest furnace in its class (SL280V)
    Based on sound pressure levels during steady-state, high-fire operation of Lennox SL280UHV070V36A and leading competitive units at mid-point temperature rise and minimum external static pressure when set up per Section 4.5.3 of AHRI 260-2001.
  3. The quietest and most efficient two-stage central air conditioner and heat pump you can buy (XC21/XP21)
    A combination of sound ratings established per AHRI's test standard: 270-2008 (August 2013); and efficiency ratings established per AHRI's test standard: ANSI/AHRI 210/240-2008 of two-stage central AC/HP equipment.
  4. The quietest and most efficient single-stage air conditioner or heat pump you can buy (XC17/XP17)
    Air conditioners/heat pumps have sound ratings established per AHRI’s test standard: AHRI 270-08 (April 2014). The XC17 has the lowest sound rating of any single-stage air conditioner of any major U.S. brand of air conditioner equipment. Efficiency claim based on comparison of single-stage air conditioner products’ SEER as published in AHRI in June 2015. The XC17 has a maximum rated efficiency of 18.00 SEER.
    Air conditioners/heat pumps have sound ratings established per AHRI’s test standard: AHRI 270-08 (July 2012). The XP17 has the lowest sound rating of any single-stage heat pump of any major U.S. brand of heat pump equipment. Efficiency claim based on comparison of single-stage heat pump products’ SEER as published in AHRI in June 2015. XP17 has a maximum rated efficiency of 17.70 SEER.
  5. The quietest and most efficient air handler you can buy (CBX40UHV)
    Based on sound pressure levels during operation of CBX40UHV-36 with factory installed MERV16 Precision Pleat™ media filter and leading competitive three-ton units at equivalent external static pressure when set up per section 4.5.3 of AHRI's test standard. AHRI 260-2001; and efficiency (CFM/Watt) ratings established per AHRI's test standard: ANSI/AHRI 210/240-2008.
  6. The quietest and most efficient single-stage air conditioner and heat pump you can buy (SL18XC1)
    Air conditioners/heat pumps have sound ratings established per AHRI’s test standard: AHRI 270-08 (August 2014). The SL18XC1 has the lowest sound rating of any single-stage air conditioner of any major U.S. brand of air conditioner equipment. Efficiency claim based on comparison of single-stage air conditioner products’ SEER as published in AHRI in June 2015. The SL18XC1 has a maximum rated efficiency of 18.50 SEER.
  7. The most precise and efficient air conditioner and heat pump you can buy (XC25/XP25)
    Efficiency claim based on comparison of air conditioning and heat pump products' SEER as published in AHRI (January 2015). Actual system combination efficient may vary; consult a Lennox Dealer or AHRI for exact system efficiencies. Precision claim based on the cooling capacity range of the XC/XP25-036 units as compared to equivalent-sized competitive variable capacity compressor units.