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Heating Products: Lennox Gas Furnaces
Designed to deliver reliable and economical warmth, Lennox® furnaces have efficiency ratings from 80% all the way up to 95% AFUE. And many are ENERGY STAR® qualified, which means they can significantly lower your utility bills, compared to conventional models. For optimal comfort and efficiency, a gas furnace can be combined with an electric heat pump in one dual-fuel system.



GOOD
Lennox G51 Gas Furnace

Models: G51MP, G61MP
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  •  Efficiency rating of 92.10% AFUE—can save you hundreds of dollars each year, compared to standard furnaces
  •  ENERGY STAR® qualified—meets or exceeds EPA guidelines for energy efficiency, which means energy savings
  •  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.
  • 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
  • Lifetime Limited Warranty on heat exchanger
  • 5-Year Limited Warranty on covered components

BETTER
Lennox G61 Gas Furnace

Models G61 zmpv
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Efficiency rating of up to 95% AFUE—can save you hundreds of dollars each year, compared to standard furnaces
  •  ENERGY STAR® qualified—meets or exceeds EPA guidelines for energy efficiency
  •  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
  • This product qualifies for a tax credit under the American Recovery and Reinvestment Act.*
  • 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
  • Multi-position models available
  • Lifetime Limited Warranty on heat exchanger
  • 5-Year Limited Warranty on covered components

BEST
G71MPP Variable-Capacity Gas Furnace

Model: G71MPP
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  • Efficiency rating of 95% AFUE on all models, all positions—can save you hundreds of dollars each year, compared to standard furnaces
  • ENERGY STAR® qualified—meets or exceeds EPA guidelines for energy efficiency
  • Variable speed inducer—automatically adjusts to match the system requirements, maintaining balanced combustion and efficiency
  • 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
  • icomfort™-enabled technology—allows the furnace, when installed with the easy-to-use programmable icomfort Touch thermostat, to exchange information and make adjustments as needed to optimize performance and efficiency*
  • This product qualifies for a tax credit
  • 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 component