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Lennox® furnaces have efficiency ratings from 80% up to 95% AFUE. And many are ENERGY STAR® qualified, lowering your utility bills. For optimal comfort and efficiency, a gas furnace can be combined with an electric heat pump in one dual-fuel system.

G71P Variable Speed Gas Furnace

  • Dave Lennox Signature®
  • up to 95% AFUE $$$
  • The quietest furnace you can buy and one of the most efficient!
  • Energy Star® qualified
  • Precise Comfort™ technology - Automatically adjusts heat and airflow capacity in increments as small as 1% for the ultimate in temperature control

G61V Variable Speed Gas Furnace

  • Dave Lennox Signature®
  • up to 95% $$$$
  • The quietest furnace you can buy!

G60V Variable Speed Gas Furnace

  • Dave Lennox Signature®
  • 80% $$$
  • The quietest furnace in its class

G61 2-Stage Gas Furnace

  • 94.1% $$$
  • Two-stage, high-efficiency heating

G60 Gas Furnace

  • 80.00% $$
  • Efficient, consistent two-stage heating

G51 Gas Furnace

  • 92.10% $$
  • High-efficiency, high-comfort heating

G50 Gas Furnace

  • 80.00% $$
  • Efficient, consistent home heating

G43 Gas Furnace

  • up to 92.10% $
  • Economical, high-efficiency gas heating

G40 Gas Furnace

  • 80.00% $
  • Multi-position furnace designed to fit most any application
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