Lennox ml180e reviews

10 years on compressor. 20 years or Limited Lifetime on heat exchanger (depending upon model) Lennox Merit ® Series products. 5 years on covered components. 5 years on compressor. 20 years on heat exchanger. Healthy Climate ® Indoor Air Quality Systems. 2 or 5 years on covered components (depending upon model)

Lennox ml180e reviews. Let’s start our Lennox furnace review with the Lennox SL280V, a furnace designed to elevate your home comfort to new heights with its innovative features: Variable Speed: The SL280V features a variable-speed blower that ensures a steady and comfortable airflow. This prevents temperature swings and eliminates sudden blasts of air during system ...

Mar 25, 2024 · Lennox Furnace Installation Costs. The Lennox gas furnace costs can range from $2,870 to $8,250 in total installation costs.The cost to install a Lennox furnace ranges by model type, the average homeowner with an 1,800 square foot home could expect to pay around $3,600 to install a gas furnace.

If I stay in the Merit ML180E has a Torque Motor or I jump into the Elite EL280E or Signature SL280V (I think this models needs a communicator)? ... Both have BAD reviews and I'm locked to using a Lennox system if I want the same installer. Humiditrol - Whole-Home Dehumidifcation System OR The Whole-Home Dumidifier …Lennox Merit ML180, ML180UH110XP60C, 80% AFUE, 110000 BTU, 5 Ton, 1 Stage Heat, Multi-Speed Upflow/Horizontal Gas Furnace. Cat # : 62W80. Model/Part # : ML180UH110XP60C. Top AHRI Matches. Replacement Available This product has been replaced by Cat# Print. Quantity: Add to Cart.Your customers will enjoy the exceptional comfort that comes with reliable Lennox engineering. The ML180's durable, high-quality design ensures long-lasting performance. And with an efficiency rating of 80%, it will save them in energy costs, especially compared to an older furnace. DownflowDedicated to sustainability and creating comfortable and healthier environments for our residential and commercial customers while reducing their carbon footprint, we lead the field in innovation with our cooling, heating, indoor air quality, and refrigeration systems.Designed for efficient durability. The ML14XC1 air conditioner is designed for smart energy use, and designed to last. Efficiency ratings of up to 17.00 SEER mean the ML14XC1 can reduce utility bills without any compromise in comfort. It may also make you eligible for local utility rebates.Lennox Merit ML180E, ML180UH045E36A, 80% AFUE, 44000 BTU, 3 Ton, 1 Stage Heat, Constant Torque Upflow/Horizontal Gas Furnace. Cat # : 81W21. Model/Part # : ML180UH045E36A. Top AHRI Matches. Replacement Available This product has been replaced by Cat# Print. Quantity: Add to Cart.The Ultimate System for Perfect Air. The Ultimate Comfort System™ combines the best of the Dave Lennox Signature® Collection to create an unprecedented whole-home comfort system that seamlessly and intelligently works together to stay finely tuned to your home and deliver consistently clean, perfect air. Find a Dealer.

Lennox ML180E Gas Furnace – Fully Install from $3,600 Lennox ultra low emission gas furnace family EL180NE feature a compact cabinet for upflow, horizontal-left or horizontal-right applications and areWe would like to show you a description here but the site won’t allow us.Lennox Merit ML180V, ML180UH070V36A, 80% AFUE, 66000 BTU, 3 Ton, 1 Stage Heat, Variable Speed Upflow/Horizontal Gas Furnace. Cat # : 17Y69. Model/Part # : ML180UH070V36A. Top AHRI Matches. Replacement Available This product has been replaced by Cat# Print. Quantity: Add to Cart.Customers’ Ratings and Reviews. The Lennox Merit® Series ML180V Gas Furnace is a product that has been highly rated by customers. Its improved humidity control and year limited extended warranty have contributed to its high customer satisfaction. ... ML180E MID-EFFICIENCY GAS FURNACE. SLP99V VARIABLE-CAPACITY GAS FURNACE. …Uh, the one that's actually the best fit for the house. Bryant/carrier furnaces are available in different sizes compared to lennox. Shopping by brand will get you in trouble - not even looking at models, technical specs. It's not like buying a fridge, it's like shopping for an engine for an old car with original engine discontinued and it has ...The ML180E's Power Saver™ constant torque motor adjusts airspeed based on demand, helping the furnace use less energy in both heating and cooling modes. Skip to content 631-823-1640

AiRCO Mechanical has been servicing Lennox gas furnaces and other brands in Austin, TX, and nearby areas since 1984. ... ML180E. Up to 80 AFUE. PAY INVOICE. LEAVE A REVIEW. Round Rock Location. 1000 South IH 35 | Round Rock, TX 78681. 512-537-1234. AC License # TACLA51950C Plumbing License # M37961Reviews. Skip to main content. Home; Services ... The ML180E gas furnace by Lennox features a Power ... Reviews · Resources. © Copyright 2024 Fairway Cooling ...The economic Lennox ML180E Gas Furnace with Power Saver technology has efficiency ratings of 80% AFUE and can save you hundreds of dollars each year, compared to standard furnaces.Compared with similar competitive products, the Lennox Merit Series doesn't compromise on the metal thickness used in its cabinets, making them more rigid and stable over time. Efficient and Affordable. The ML18XC2 offers energy efficiencies of up to 18.00 SEER and 17.8 SEER2, delivering comfort and energy savings at a more affordable price ...

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Lennox (NYSE: LII) is a leader in energy-efficient climate-control solutions. Dedicated to sustainability and creating comfortable and healthier environments for our residential and commercial customers while reducing their carbon footprint, we lead the field in innovation with our cooling, heating, indoor air quality, and refrigeration systems.If you’re looking for a new kitchen stove, you’re in luck – there are plenty of options available on sale right now. However, with so many different types and models to choose from...The SL280V comes with a 20-year limited warranty on the heat exchanger and a 10-year limited warranty on all remaining covered components.***. high-fire operation of Lennox SL280UHV070V36A and leading competitive units at mid-point temperature rise and minimum external static pressure when set up per Section 4.5.3 of AHRI 260-2001.We replaced our 19-year-old furnace/ac unit two months ago. Unfortunately, we chose the Lennox ML180E furnace, which as it turns out, is very noisy. Hear for...We’ll talk about Lennox furnace prices and this model’s design elements, special features, and warranty details. Then, we’ll compare it to three other Lennox furnaces to give you a better idea of the value for money the ML196E provides. The Lennox Merit ML196E in a Nutshell. Average Price (with installation): $4,200 to $4,800 . Top Features

The price of Lennox air conditioners is typically more expensive than Carrier air conditioners. Their newer models are around 15% to 20% more costly than Carrier's. In addition, an AC unit from Carrier costs around $1,400 to $4,700 to install, while a unit from Lennox can cost around $3,110 to $7,340.The ML180E's Power Saver™ constant torque motor adjusts airspeed based on demand, helping the furnace use less energy in both heating and cooling modes. Skip to content 24/7 EMERGENCY SERVICE 907-376-4130Customers’ Ratings and Reviews. The Lennox Merit® Series ML180V Gas Furnace is a product that has been highly rated by customers. Its improved humidity control and year limited extended warranty have contributed to its high customer satisfaction. ... ML180E MID-EFFICIENCY GAS FURNACE. SLP99V VARIABLE-CAPACITY GAS FURNACE. …Lennox' base warranty will apply. Applies to residential applications only. See actual warranty certificate for details. Note: Due to Lennox' ongoing commitment to quality, specifications and ratings are subject to change without notice. MERIT® SERIES ML180 SPECIFICATIONS Model ML180UH045P24A ML180UH045P36A ML180UH045XP36A ML180UH070P24A ...Model Comparison by Price: Elite EL18XCV versus Dave Lennox Signature Collection XC21. The Dave Lennox Signature Collection XC21 is a premium-tier Lennox air conditioner, so it's going to cost about $5,000 to $7,500+ to buy and install. While you might expect to get a more advanced air conditioner with the extra cost, the XC21 actually has a ...Eficient, economical and reliable gas furnace. CONSTANT EFFICIENCY. The Power SaverTM constant torque motor in the ML180E adjusts airspeed based on demand, which means that it operates more eficiently than a standard motor. 33 % GREATER EFFICIENCY. than standard motors. PEACE-OF-MIND PROTECTION.Lennox (NYSE: LII) is a leader in energy-efficient climate-control solutions. Dedicated to sustainability and creating comfortable and healthier environments for our residential and commercial customers while reducing their carbon footprint, we lead the field in innovation with our cooling, heating, indoor air quality, and refrigeration systems.Products that add to the performance of EL297V Gas Furnace. * The EL297V offers class-leading comfort with an energy rating of 97% AFUE. This high efficiency digital furnace is designed to pair with the Lennox S40 Smart Thermostat as part of a fully communicating home comfort system. It also qualifies for the United States federal Energy ...Mid-Efficiency Gas Furnace. The ML180E's Power Saver™ constant torque motor adjusts airspeed based on demand, helping the furnace use less energy in both heating and cooling modes. The ML180E has a…The Lennox ML180E automatically adjusts output based on your needs. Durable Construction: Built with heavy-gauge steel and a reliable heat exchanger, the Lennox ML180E is engineered for long-lasting performance. Ideal for Homes: 1,500 to 2,500 square feet; Beyond Gas: The Lennox ML180E shines in its partnership with a Lennox heat pump. This ...

Lennox Elite EL180E, EL180DF070E36B, 80% AFUE, 66000 BTU, 3 Ton, 1 Stage Heat, Constant Torque Downflow Gas Furnace. Cat # : 10F48. Model/Part # : EL180DF070E36B. Top AHRI Matches. Replacement Available This product has been replaced by Cat# Print. Quantity: Add to Cart. Save to List.

Efficient and Affordable. The ML17XP1 offers energy efficiencies of up to 18.60 SEER and 10.60 HSPF, equivalent to 17.00 SEER2 and 8.50 HSPF2, delivering comfort and energy savings at a more affordable price.Single-Stage. 73 dB. As low as 73 dB. R-410A refrigerant. R-410A Refrigerant. PermaGuard™ Cabinet. PermaGuard™ Cabinet. 5-Year Limited Warranty on covered components including compressor. This product may be eligible for valuable 10-Year Limited Extended Warranty coverage with product registration.Energy Efficient Design. With an efficiency of 16 SEER and up to 9.0 HSPF, the ML14XP1 heat pump keeps your home comfortable and energy efficient. With years of rigorous testing under the most extreme conditions, our Quantum™ Coil–featuring a proprietary aluminum alloy exclusive to Lennox–is designed to weather the harshest elements.2017 lennox industries inc. dallas, texas, usa air flow upflow air flow air flow horizontal left horizontal right installation instructions ml180uhe merit® series gas furnace upflow / horizontal air discharge 507103-02 10/2017 supersedes 507103-01 this manual must be left with the homeowner for future referenceLennox Merit ML180E, ML180UH045E36A, 80% AFUE, 44000 BTU, 3 Ton, 1 Stage Heat, Constant Torque Upflow/Horizontal Gas Furnace. Cat # : 81W21. Model/Part # : ML180UH045E36A. Top AHRI Matches. Replacement Available. This product has been replaced by Cat#. Print.tech.lennoxintl.comReplaced existing with lennox ml180e 70k gas furnace and ml17xc1 2 ton air conditioner . Valuation: N/A Permit #: M02214334 Status: filed Fee: $55 Permit Type: N/A ... verified work history, standing with local consumer interest groups, verified reviews from other BuildZoom users and self-reported feedback from the contractor. Why you should ...This is a brand new model from Lennox. It has swept fan blades and a two-stage Copeland scroll compressor. I also included a video of a dual zone of 2022 Len...

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Mid-Efficiency Gas Furnace. The ML180E's Power Saver™ constant torque motor adjusts airspeed based on demand, helping the furnace use less energy in both heating and cooling modes. The ML180E has a…A Lennox furnace has two LED lights that the system uses to say that something is not right. The lights can flash at different frequencies, be switched off, or steadily on - each combination is a different troubleshooting code that indicates the problem.Review Us On . Facebook-f Twitter Youtube. Call for 24/7 Emergency Service (281) 837-8454. Serving Baytown and the Surrounding Areas Since 1947. ... When the ML180E is paired with a Lennox® heat pump, it creates a system that automatically switches between electricity and gas, keeping you warm and energy efficient. ...Merit ML180E Series. Economical Gas Furance with Power Saver™ Technology. The Power Saver™ constant torque motor in the ML180E adjusts airspeed based on …The ML180E’s sealed blower compartment minimizes losses and maximizes efficiency and comfort. With product registration, the ML180 may be eligible for a 10-year Limited Extended Warranty. Lennox also offers a 5-year Limited Warranty on covered parts and 20-Year Warranty on the Heat Exchanger. It is not easy to pick the right furnace for your ... The Power Saver™ constant torque motor in the ML180E adjusts airspeed based on demand, which means that it operates more efficiently than a standard motor. Energy-Efficient Design - With an energy rating of 80% AFUE, the ML180E keeps your home comfortable and energy efficient. Dual-fuel operation - When the ML180E is paired with a Lennox ... Lennox Merit ML17XP1-024, 2 Ton, Meets or exceeds 14.3 SEER2, Meets or exceeds 7.5 HSPF2, 208-230 VAC 1 Ph 60 Hz Quantum Coil Heat Pump. Cat # : 23A12. Model/Part # : ML17XP1-024. Top AHRI Matches. Replacement Available This product has been replaced by Cat# Print. Quantity:Dual-fuel operation offers greater efficiency. When the ML180 is paired with a Lennox® heat pump, it creates a system that can automatically alternate between electricity and gas to keep you warm. So you're always using the most energy-efficient way to keep comfortable. Furnaces, air conditioners, heat pumps, air purifiers and more for your ...With an ML180E furnace, you could be saving hundreds of dollars every year when compared to an older, less efficient unit. Dual-Fuel Operation for Even Greater Efficiency. When the ML180E is paired with a Lennox ® heat pump, it creates a system that automatically switches between electricity and gas, keeping you warm and energy efficient.Installing a single-zone Lennox mini split could cost anywhere from $300 to $1,500, according to Angi. Each additional zone adds $300 to $1,000 in labor costs. Lennox mini splits connect to a 220V circuit. If you don't already have one installed outside your home, Forbes suggests you'll pay an extra $100 to $300. ….

Explore top-quality furnace options, including Lennox Merit® Series gas furnace models like ML180E, along with expert insights on air conditioning, buying guides, BTU ratings, and Lennox gas furnace reviews. Discover mid-efficiency and Lennox air conditioner systems for efficient heating and air solutions.With an ML180E furnace, you could be saving hundreds of dollars every year when compared to an older, less efficient unit. Dual-fuel operation for even greater efficiency. When the ML180E is paired with a Lennox ® heat pump, it creates a system that automatically switches between electricity and gas, keeping you warm and energy efficient.The ML180E's Power Saver™ constant torque motor adjusts airspeed based on demand, helping the furnace use less energy in both heating and cooling modes. Skip to content 24/7 EMERGENCY SERVICE 907-376-4130Lennox Merit ML180E, ML180DF070E36B, 80% AFUE, 66000 BTU, 3 Ton, 1 Stage Heat, Constant Torque Downflow Gas Furnace. Cat # : 79W75. Model/Part # : ML180DF070E36B. Top AHRI Matches. Replacement Available This product has been replaced by Cat# Print. Quantity: Add to Cart. Save to List.ENERGY STAR ® Qualified: Price Guide: MLB Mini-Split Heat Pump. High-efficiency, variable-capacity, mini-split heat pump effective even in extreme cold conditions. Rating: Efficiency Rating ( SEER ): up to 28.1. Efficiency Rating ( SEER2 ): up to 25.5.A Lennox furnace has two LED lights that the system uses to say that something is not right. The lights can flash at different frequencies, be switched off, or steadily on - each combination is a different troubleshooting code that indicates the problem.The ML180E's Power Saver™ constant torque motor adjusts airspeed based on demand, helping the furnace use less energy in both heating and cooling modes. Skip to content. 303-601-9537. FINANCING. SCHEDULE NOW. ... Lennox ML180E Gas Furnace ...Lennox Merit ML180E, ML180DF070E36B, 80% AFUE, 66000 BTU, 3 Ton, 1 Stage Heat, Constant Torque Downflow Gas Furnace. Cat # : 79W75. Model/Part # : ML180DF070E36B. Top AHRI Matches. Replacement Available This product has been replaced by Cat# Print. Quantity: Add to Cart. Save to List.Product selector Use our selector tool to find the perfect heating and cooling products for your comfort needs. Start NowMerit® air conditioners come appointed with: Precision-balanced, direct drive fan to keep the noise low and the savings high. Reinforced with a PermaGuardTM cabinet for long-lasting protection against rust and corrosion. Cabinets built using superior materials and proprietary designs make Lennox® units more durable, safer and easier to install. Lennox ml180e reviews, The unit has a 19.00 Seer and 9.70 HSPF rating and can save you hundreds of dollars each year when you compare it to a standard heat pump The two-stage operation maintains and distributes an even temperature in to the home. The Lennox XP21 Heat Pump comes with a 10-Year Limited Warranty on the compressor and on all covered components., Lennox (NYSE: LII) is a leader in energy-efficient climate-control solutions. Dedicated to sustainability and creating comfortable and healthier environments for our residential and commercial customers while reducing their carbon footprint, we lead the field in innovation with our cooling, heating, indoor air quality, and refrigeration systems., Lennox® gas and oil furnaces promise unsurpassed comfort. Innovative design and technology automatically adjusts outputs in precise and minute increments to hold temperatures exactly where you want them. As quiet as they are efficient, Lennox furnaces combine advanced technology, engineering and sound-absorbing insulation to ensure whisper ..., Lennox claims the G71 Variable-capacity gas furnace is the quietest gas furnace you can buy. It is also one of the few only truly modulating gas furnaces with a range of firing rates from 40% to 100%. Two-stage gas furnaces in selected models. DuralokPlus® Heat Exchanger on selected models which are considered highly efficient and reliable., Review Us On . Facebook-f Twitter Youtube. Call for 24/7 Emergency Service (281) 837-8454. Serving Baytown and the Surrounding Areas Since 1947. ... When the ML180E is paired with a Lennox® heat pump, it creates a system that automatically switches between electricity and gas, keeping you warm and energy efficient. ..., Conclusion. Lennox furnace prices installed vary from $2,900 to $8,300+. The cost of the unit can be higher or lower, depending on the unique characteristics of your home. Enhanced with smart technologies, Lennox furnaces have high AFUE rates, save you nearly $3,823 in 5 years, protect the planet, and serve for up to 20 years., Safety Instructions. - Keep the furnace area clear and free of combustible material, gasoline, and other flammable vapors and liquids. If it is installed in an insulated area, the furnace must be kept free of insulating material. Insulating ma terial may be combustible. 2 - DO NOT obstruct air flow to unit., 6630 Seneca Dr, Columbia, MD, 21046. 2023-08-24. Replaced existing with lennox ml17xp 4 ton heat pump and air handler in the attic (system#1) replaced existing with lennox ml17xp 2 ton heat pump and air handler in the basement (system#2) new 9k mini split added (system #3) 50 gallon electric water heater. Valuation:, www.lennox.com 1-800-9-LENNOX For a complete list of the registered and common law trademarks owned by Lennox Industries Inc., please visit www.lennox.com. ... The ML180E comes with a 20-year limited warranty on the heat exchanger and a 5-year limited warranty on remaining covered components.** 33 than standard motors GREATER %, We replaced our 19-year-old furnace/ac unit two months ago. Unfortunately, we chose the Lennox ML180E furnace, which as it turns out, is very noisy. Hear for..., Be the first to review "Lennox Wireless Sensor" Cancel reply. Your email address will not be published. ... Lennox S40 Smart WiFi Thermostat $ 1,139.00. Add to cart View cart Lennox Merit Series Gas Furnace - ML180E $ 3,674.00 - $ 4,203.00. Select options ..., Mar 21, 2024 · The Signature Series model Lennox SL28XCV can get up to 28 SEER. Lennox systems prices range from $6,000 to $14,000, which is near the industry standard. The cost, combined with the high efficiency and performance, makes Lennox HVAC systems a good value. 9 of its 13 models are Energy Star-certified. , When matched with a Lennox air conditioner or heat pump, the SL280V can enhance your cooling Seasonal Energy Efficiency Ratio (SEER), which leads to greater energy efficiency and lower energy costs. To further decrease heat loss, the SL280V has a durable steel cabinet that is elegantly styled with a high-quality paint finish. Temperature Control., Reviews; Lennox Products; FAQs About R-22; Blog; Book Now (818) 495-6787; Schedule Now (818) 495-6787. ML180E Mid-Efficiency Gas Furnace. ... The ML180E has an AFUE of 80%, which means that 80 cents of every dollar spent on gas goes directly to heating your home. With an ML180E furnace, you could be saving hundreds of dollars every year when ..., Safety Instructions. - Keep the furnace area clear and free of combustible material, gasoline, and other flammable vapors and liquids. If it is installed in an insulated area, the furnace must be kept free of insulating material. Insulating ma terial may be combustible. 2 - DO NOT obstruct air flow to unit., Merit® air conditioners come appointed with: Precision-balanced, direct drive fan to keep the noise low and the savings high. Reinforced with a PermaGuardTM cabinet for long-lasting protection against rust and corrosion. Cabinets built using superior materials and proprietary designs make Lennox® units more durable, safer and easier to install., Lennox add-on indoor coils, high-efficiency air cleaners and humidifiers can easily be added to furnace. Shipped factory assembled with all controls installed and wired. Ready for installation in upflow or horizontal right-hand position without any modifications. Horizontal left-hand position requires repositioning of pressure switch., We would like to show you a description here but the site won't allow us., Merit® air conditioners come appointed with: Precision-balanced, direct drive fan to keep the noise low and the savings high. Reinforced with a PermaGuardTM cabinet for long-lasting protection against rust and corrosion. Cabinets built using superior materials and proprietary designs make Lennox® units more durable, safer and easier to install., Ratings & Reviews. See what other customers are saying about GWB84-IE Boiler. 5/5. February 27, 2021. 5/5. February 13, 2021. 5/5. February 11, 2021. Read More Reviews. Read Reviews. Get answers from a Lennox ® Dealer. It's easy to find an expert Lennox Dealer who can help you make the most of your HVAC system. View Now. Get the answers you ..., Lennox units are known for their superior performance, energy efficiency, and durability. Moreover, they come with advanced features such as Precise Comfort® technology that allows fine-tuning of comfort levels and the SunSource® Home Energy System for solar power integration. Purchasing a Lennox unit from Costco brings cost-saving benefits., We would like to show you a description here but the site won't allow us., With an ML180E furnace, you could be saving hundreds of dollars every year when compared to an older, less efficient unit. Dual-Fuel Operation for Even Greater Efficiency. When the ML180E is paired with a Lennox ® heat pump, it creates a system that automatically switches between electricity and gas, keeping you warm and energy efficient., With an ML180E furnace, you could be saving hundreds of dollars every year when compared to an older, less efficient unit. Dual-fuel operation for even greater efficiency When the ML180E is paired with a Lennox® heat pump, it creates a system that automatically switches between electricity and gas, keeping you warm and energy efficient., Your customers will enjoy the exceptional comfort that comes with reliable Lennox engineering. The ML180's durable, high-quality design ensures long-lasting performance. And with an efficiency rating of 80%, it will save them in energy costs, especially compared to an older furnace. Downflow , The ML193E comes with a 20-year Limited Extended Warranty on the heat exchanger. Lennox also offers a 5-year Limited Warranty on covered parts. With registration, this product may be eligible for valuable 10-Year Limited Extended Warranty coverage. Every component of the ML193E has proven itself through extensive testing in …, The gas furnace in the Lennox Merit Series is high-efficiency. They have an AFUE rating of up to 96%, which means they are some of the most efficient furnaces on the market. The gas furnaces in the Lennox Merit Series also feature a two-stage gas valve, a silicon nitride igniter, and a stainless steel heat exchanger., Lennox® central air conditioners installed in the Southwest region3 that achieve a minimum SEER2 of 16.00 and EER2 of 12.00 meet federal standards for Qualified Energy Property 1 (provided such products are combined with the proper coil and/or furnace, as, Energy-Efficient Design - With an energy rating of 80% AFUE, the ML180E keeps your home comfortable and energy efficient. Dual-fuel operation - When the ML180E is paired with a Lennox® heat pump, it creates a system that automatically switches between electricity and gas, keeping you warm and energy efficient. High Quality Steel., NOTE - ML180E FURNACES ARE NOT AVAILABLE IN CANADA! CONTENTS ... NOTE - Refer to Lennox Equipment Limited Warranty certificate included with unit for specific details. APPLICATIONS • Input capacities of 44,000, 66,000, 88,000, 110,000 and 132,000 Btuh • Energy efficiency (AFUE) - 80%, A place for homeowners, renters, tenants, business owners or anyone with a general question about their HVAC system. Please read rules before posting!, The Lennox brand was founded in the late 19th century as a machine shop that made custom parts for all types of machines. Eventually, the Lennox brand evolved into what we know today, which was recently ranked the fourth-best HVAC system. Lennox is popular with luxury builders, passive home designers, and homeowners searching for energy efficiency., Lennox claims the G71 Variable-capacity gas furnace is the quietest gas furnace you can buy. It is also one of the few only truly modulating gas furnaces with a range of firing rates from 40% to 100%. Two-stage gas furnaces in selected models. DuralokPlus® Heat Exchanger on selected models which are considered highly efficient and reliable.