Residential - Furnaces

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G71P    The Quietest furnace you can buy Home Comfort                                   Precise Comfort™ technology - Automatically adjusts heat and airflow capacity in increments as small as 1% for the ultimate in temperature control   AirFlex™ technology - Offers custom settings which can be selected to meet each home's specific year-round comfort requirements   Zoning - Compatible Design - Works with Lennox' Harmony III™ zoning system to deliver the right amount of comfort for up to four zones   Variable Speed Blower Motor - Provides a quiet, consistent flow of air for enhanced temperature and humidity control  Variable-Capacity Operation -Goes beyond typical low and high two-stage operation, varying output from 40% to 100% Quiet Operation Silent Comfort™ technology - Delivers the ultimate in quiet, consistent heating  Sound-Absorbing Insulation - Reduces sound for quieter operation Two-Stage gas valve Energy Efficiency Efficiency rating of 95% 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.                                             ENERGY STAR qualified product.                     Indoor Air Quality Cleaner Air - The high efficient variable speed  blower motor can quietly and cost effectively circulate air continuously throughout your home. This allows your filter to continue to capture pollutants. Reliable Performance Sure Light Control Board- Controls furnace     operation to ensure high reliability and efficiency Ignition delivers starting reliability.                      SureLight® Igniter - Silicone nitride construction ensures long product life and reliable operation   Duralok Plus Heat Exchanger - made of high quality, patented ArmorTuf aluminized steel.                       Limited Lifetime Warranty on the heat    exchanger.                      10-Year Limited Warranty on covered components. G61V    One of the Quietest furnaces  you can buy Comfort Heating Variable Speed Motor - Adjusts the control of airflow for ultimate comfort.  Quiet Operation Sound-Absorbing Insulation - Reduces sound for quieter operation. Two-Stage gas valve Energy Efficiency Up to 94.6% AFUE Energy Efficiency - Industry- leading efficiency reduces your energy costs.                                             ENERGY STAR qualified product.                     Energy saving, variable speed orientation.  Indoor Air Quality Cleaner Air - The high efficient variable speed  blower motor can quietly and cost effectively circulate air continuously throughout your home. This allows your filter to continue to capture pollutants. Reliable Performance Sure Light Control Board- Controls furnace     operation to ensure high reliability and efficiency Ignition delivers starting reliability.                      Duralok Plus Heat Exchanger - made of high quality, patented ArmorTuf aluminized steel.                       Limited Lifetime Warranty on the heat    exchanger.                      10-Year Limited Warranty on covered components. G60V Gas Furnace Quiet Operation Silent Comfort Technology. Home Comfort Two-stage, variable speed comfort. Up-flow and Down-flow/Horizontal models available. Energy Efficiency 80% AFUE energy efficiency.    Energy saving, variable speed orientation. Reliable Performance Sure Light Ignition delivers starting reliability.                                                20-Year Limited Warranty on heat exchanger.                    10-Year Limited Warranty on covered components.   Elite Series G61 Gas Furnace  Comfort Heating   Two-Stage heating provides two levels of heat  output for greater temperature control  regulating temperature to within as little as one degree of the thermostat setting.   Energy Efficiency ENERGY STAR-qualified product.                      Over 94.1% AFUE energy efficiency - High  efficiency levels save you money versus standard efficiency furnaces. Quiet Operation Two-Stage Heating- Operates at low capacity most of the time for lower sound levels.              Fully Insulated - Further reducing sound for even quieter operation. Indoor Air Quality Constant, Low-Speed Fan - Special fan feature can improve filter effectiveness. Reliable Performance Sure Light Ignition delivers starting reliability.                    Duralok Plus Heat Exchanger - Made of high quality, patented ArmorTuf aluminized steel. Life tested at 2.5 times agency requirements (ANSI  standard  Z21.47).                   Limited life time warranty on heat exchanger.                    5-Year Limited Warranty on covered components. G51 Gas Furnace Energy Efficiency 92.1%  AFUE Energy Efficiency. Comfort Heating Secondary Heat Exchanger - Allows the furnace to reach high efficiency levels by capturing additional heat. Quiet Operation Insulated blower compartment reduces sound for quieter operation. Reliable Performance Sure Light Igniter is made of silicon nitride, a  rugged material that is much stronger than other hot-surface igniters.                   Duralok Plus Heat Exchanger - made of high quality, patented ArmorTuf aluminized steel. Life tested at 2.5 times agency requirements  (ANSI standard  Z21.47).                   Limited life time warranty on heat exchanger.                   5-Year Limited Warranty on covered components.   G60 Gas Furnace Quiet Operation Fully insulated for quiet, efficient operation. Home Comfort Comfortable two-stage heating. Energy Efficiency  80% AFUE energy efficiency. Reliable Performance Sure Light Ignition delivers starting reliability.                    Up-flow/Down-flow/Horizontal models available.                  20-Year Limited warranty on heat exchanger.                  5-Year Limited Warranty on covered components. G50 Gas Furnace Quiet Operation Fully insulated for quiet, efficient operation. Energy Efficiency 80% AFUE energy efficiency.                 Dedicated low-speed for continuous fan mode. Reliable Performance Sure Light Ignition delivers starting reliability.                 Up-flow/Down-flow/Horizontal models available.                 20-Year Limited Warranty on heat exchanger.                 5-Year Limited Warranty on covered components. O23 Oil Furnace Quiet Operation Fully insulated for quiet, efficient operation. Energy Efficiency Over 82% AFUE energy efficiency. Reliable Performance Designed for easy maintenance serviceability.                 Simple outside combustion air connection.                 Belt driven models available (O24/Of24).                 Exclusive EZ Clean Heat Exchanger.                 Sure Light Ignition delivers starting reliability.                 Up-flow/Down-flow/Horizontal models available.                 5-Year Limited Warranty on covered components.     Merit Series   G41 Gas Furnace Energy Efficiency Efficiency ratings of up to 90% AFUE.                Energy Star Qualified-Meets or exceeds EPA guidelines for energy efficiency. Reliable Performance 20-Year Limited Warranty on heat  exchanger.                3-Year Limited Warranty on ignition control.                1-Year Limited Warranty on covered components.   G40 Gas Furnace Energy Efficiency 80% AFUE energy efficiency. Quality Components Heat Exchanger made of ArmorTuf aluminized steel. Built to Last 20-Year Limited Warranty on heat exchanger.                3-Year Limited Warranty on ignition control.                1-Year Limited Warranty on covered components.       Aire-Flow AF92V Gas Furnace       Features Up to 92.1% AFUE.                Two-stage heating inputs range from 50,000-125,000 btu       Variable speed motor and two-stage gas control system provide superior comfort and even temperatures.       Adjustable air flow in 200 CFM increments              20-Year Limited Warranty on heat exchangers.               5-Year Limited Warranty on parts.               Heavy gauge, pre-painted cabinet provides corrosion protection.               Crimped aluminized steel heat exchanger and AL29-AC stainless condensing heat exchanger for longer life.                      Up-flow and horizontal left application.                         5 AMP fused circuit protection.               Two-wire twinning.               Sealed combustion.               AGA and CGA approved.               Electronic air cleaner and  humidifier hookups.            Aire-Flo AF92 Gas Furnace         Features Up to 92.1% AFUE.                Size range 50,000 - 125,000.               20-Year Limited Warranty on heat exchangers.               5-Year Limited Warranty on parts.               Heavy gauge, pre-painted cabinet provides corrosion protection.               Crimped aluminized steel heat exchanger and AL29-AC stainless condensing heat exchanger for longer life.              Time delay off for A/C SEER enhancement.               Up-flow, down-flow or horizontal application.               Integrated furnace control with diagnostics and 115v HSI system                 5 AMP fused circuit protection.               Two-wire twinning.               Sealed combustion.               AGA and CGA approved.               Electronic air cleaner and Aire-Flo" humidifier hookups.               Three speed blower motor.               Common LP kit for all Aire-Flo gas furnaces.                      Works in either a single pipe or two-pipe unit configuration (Up-flow/Horizontal model only).     Aire-Flo 80 Furnace     Features 80% AFUE.               Size range 50,000 - 125,000.               20-Year Limited Warranty on heat exchangers.               5-Year Limited Warranty on parts.               Heavy gauge, textured, pre-painted cabinet provides corrosion protection.               Crimped aluminized steel heat exchanger for longer life.               Time delay off for A/C SEER enhancement.               integrated furnace control with diagnostics and 115v HSI system.               5 AMP fused circuit protection.               Two-wire twinning.               AGA and CGA approved.               Electronic air cleaner and humidifier hookups.              Three speed blower motor.               Common LP kit for all gas furnaces.