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Four Seasons Heating & Air Conditioning, Inc., Heating & Air Conditioning, Chicago, IL

Furnace Model Information

The Lennox Merit Series G40 is a dependable, mid-efficiency gas furnace

Energy Efficiency

  • Efficiency rating of 80% AFUE—can save you hundreds of dollars each year, compared to standard furnaces
  • 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

Reliable Furnace Performance

  • Duralok Plus™ heat exchanger—made of high-quality, patented ArmourTuf aluminized steel
  • Hot surface igniter—controls furnace operation to ensure reliable, efficient performance

Four Seasons Information