This cost-effective gas furnace from Lennox has an AFUE rating of 80 percent. The unit is dual-fuel capable and can pair with a heat pump to run using electricity. The natural-gas furnace has an AFUE rating of 93 percent and uses two heat exchangers. ML193Īnother economical furnace, this model does not compromise on performance or efficiency. This natural-gas furnace is dual-fuel capable and can pair with a heat pump for peak efficiency. The system has two heat exchangers and a tightly sealed blower compartment. This single-stage gas furnace boasts an AFUE rating of 95 percent. This budget-friendly furnace is also exceptionally energy efficient. This furnace features sound-absorbing insulation and uses natural gas. The unit uses a power-saver constant-torque motor, which offers consistent heating and quiet operation. This cost-effective, single-stage furnace has an exceptional AFUE rating, 95 percent, making it one of the most efficient furnaces in its class. This natural-gas furnace from Lennox features a fully insulated cabinet, which ensures quiet operation. The unit has an AFUE rating of 80 percent, is dual-fuel capable and can be paired with a heat pump. EL280Īn energy-efficient model, this two-stage gas furnace adjusts its flame size to fit the heating demand, ensuring optimum heating while reducing energy costs. The unit features sound-absorbing insulation and uses natural gas.
This gas furnace uses two heat exchangers and a variable-speed blower for enhanced comfort, humidity control and efficiency. The unit has a 96 percent AFUE rating, which can save hundreds of dollars per year on energy bills. This energy-efficient furnace is a great deal. Skip the search and connect with an HVAC expert. The furnace improves air quality during summer by removing moisture. This heating system is dual-fuel capable, which means it can work with a heat pump to run on gas or electricity. The efficient system uses two-stage heating and a constant-torque motor, which adjusts the airspeed according to demand. This Lennox furnace has an AFUE rating of 96 percent, which means it converts 96 cents per dollar into useful heat. This natural-gas heating system is compatible with Lennox’s smart thermostat for automatic temperature control and remote access. The system uses Lennox’s proprietary SilentComfort technology, and sound-absorbing insulation further quietens operation. With two-stage heating and a variable-speed motor, this model provides efficient heating. This popular furnace has an AFUE rating of 80 percent.
The system runs on natural gas and is compatible with the Lennox smart thermostat. The modulating valve and a variable-speed blower improve performance, and according to Lennox, the unit’s silicone nitride ignitor increases its durability and reliability. This quiet unit has two heat exchangers and condensing technology, which provides effective heat dispersement. This heating system was named one of the most efficient Energy Star-certified products of 2019. This energy-efficient Lennox furnace is the company’s flagship gas furnace and has an industry-leading AFUE rating of 98.7 percent. Below are the top 10 Lennox furnace models. Lennox offers furnace options to fit various budgets, heating requirements, and energy-efficiency preferences. Furnaces with constant torque motors offer improved efficiency while delivering greater comfort and cost savings.
Two-stage furnaces offer both high and low output settings that calibrate furnace heat flow to thermostat settings. Ultra-low emission Lennox furnaces burn away more NOx gases and result in cleaner emissions, healthier for you and the environment. Variable speed furnaces prevent large temperature fluctuations and reduce operating costs while providing consistent heating with lower humidity. Different models include variable speed, ultra-low emission, and two-stage furnaces. Within those two fuel types, different furnace models offer different features. Most Lennox furnaces run on gas, but some use oil instead.
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