Lennox vs Carrier: Which HVAC System Is Right for You?

HVAC Logo IconBy Tom MoorMarch 27, 2024
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Choosing the right HVAC system for your home can be a complex process. In addition to factors like size, efficiency rating, and options for multi-stage or variable-stage operation, selecting the appropriate brand is also crucial.

Two of the most reputable manufacturers on the market are Lennox and Carrier. Both known for their commitment to quality and innovation, Lennox and Carrier provide a variety of heating and cooling solutions tailored to meet different needs, preferences, and budgets. HVAC.com compares Lennox vs Carrier HVAC systems to help you make an informed buying decision.

Lennox HVAC Systems

Lennox is renowned for its innovative technologies and high-quality products designed to deliver unmatched comfort and efficiency. Its lineup includes an assortment of air conditioners, heat pumps, and furnaces.

Air Conditioners

Lennox provides a comprehensive selection of ENERGY STAR-certified air conditioners known for their exceptional energy-efficient ratings and minimal noise levels. In terms of features, Lennox cooling systems often incorporate advanced technologies such as variable-speed compressors and compatibility with smart thermostats for enhanced energy management.

The brand’s Dave Lennox Signature Collection showcases two of its most efficient models. Among them, the SL28XCV Air Conditioner stands out with an impressive 28 Seasonal Energy Efficiency Rating (SEER), promoting energy savings while being environmentally friendly. Equipped with Precise Comfort® technology, the SL28XCV adjusts its cooling output to align with your energy usage, ensuring accurate temperature control.

Lennox’s Elite® Series and Merit® Series also present a variety of highly efficient systems, with 12 out of 13 units boasting SEER ratings of at least 17.


From entry-level models to premium options, Lennox furnaces are equipped with sophisticated features such as variable-speeds and innovative control systems for precise temperature control and energy savings.

In terms of efficiency, Lennox is a stellar choice. Ten of its 19 furnace models are ENERGY STAR certified with Annual Fuel Utilization Ratings (AFUE) of 95% or higher. The brand’s most efficient model, the SLP99V Variable-Capacity Gas Furnace, features an AFUE rating of up to 99% and is described by Lennox as “the quietest and most efficient furnace you can buy.” According to Lennox, replacing a 60 AFUE furnace with its SLP99V model can save you more than $11,500 in energy costs over a 15-year span.

Additionally, Lennox furnaces incorporate durable materials and rigorous testing to ensure long-term performance and reliability. With extensive warranty coverage and a commitment to customer satisfaction, Lennox continues to be a trusted choice for heating solutions that deliver comfort, efficiency, and peace of mind.

Heat Pumps

Searching for an HVAC system that can provide both energy-efficient heating and cooling? Lennox has your covered with a wide range of ENERGY STAR-certified heat pumps. With advanced features such as variable-speed technology, smart thermostat capabilities, and a Quantum Coil designed to perform in the harshest elements, Lennox heat pumps provide year-round comfort while minimizing energy consumption.

Lennox provides a large selection of energy-efficient heat pumps suitable for various budgets. Notably, the XP25 Heat Pump boasts a SEER of up to 23.5 and an HSPF of 10.2, making it one of Lennox’s most highly efficient heat pump models. With a sound rating of 58, this model operates as quietly as whisper.

If you’re on a budget, Lennox’s ML14XP1 Heat Pump is a strong offering. The standard-efficiency, single-stage heat pump features SEER and HSPF ratings of 16 and 8.2, respectively. The model’s 4.5 rating out of 5, based on more than 5,000 reviews, shows more than 90% of owners are happy with this system.

Carrier HVAC Systems

Carrier is another industry leader known for its commitment to innovation and reliability. Its lineup also includes a wide range of air conditioners, heat pumps, and furnaces designed to meet the diverse requirements of homeowners.

Air Conditioners

Carrier has a rich history in air conditioning, with its founder, Willis Carrier, credited with inventing the modern air conditioning system in 1902. Today, Carrier evaluates its air conditioners based on factors such as efficiency, comfort features, and sound performance.

Overall, some of the top features of Carrier air conditioners include variable speed compressors for accurate temperature control, consistent comfort, and increased energy savings. Pairing the Infinity® System Control with Greenspeed intelligence allows Carrier’s top units to adapt its cooling output to the unique needs of the home, making adjustments between 25 and 100% capacity for increased comfort and energy savings. Carrier AC models also offer superior humidity control and sound blankets to reduce noise levels.

The Infinity® Variable-Speed Air Conditioner with Greenspeed® Intelligence is Carrier’s highest-efficiency cooling system with a SEER2 of up to 24 for stellar energy savings. Several other models offer SEER2 ratings between 16-17, providing an energy-efficient alternative at a lower cost.


Carrier furnaces offer a range of options tailored to specific comfort and budget needs, from single-stage to modulating models. Pairing Infinity furnaces with variable-speed air conditioners ensures optimal humidity control for year-round comfort.

With a focus on energy efficiency and quiet operation, Carrier furnaces provide both savings on heating costs and a peaceful indoor environment. With several models boasting AFUE ratings of 95% or higher, Carrier furnaces prioritize energy efficiency. These impressive ratings not only contribute to lower heating costs but also reflect Carrier's commitment to sustainability and environmental responsibility.

Several Carrier furnace models come with the ENERGY STAR logo, including its most high-tech option, the Infinity® 98 Gas Furnace With Greenspeed® Intelligence. The Infinity® 98 gas furnace boasts a noteworthy 98.5% AFUE for superior energy savings, coupled with premium comfort and strong humidity control.

Heat Pumps

Carrier heat pumps offer an array of comfort features tailored to individual preferences. From single-stage models with basic airflow control to premium variable-speed options providing precise temperature regulation, there’s an option to suit every need. Cutting-edge technologies such as two-stage heating and cooling ensure consistent comfort levels, while humidity control capabilities maintain balanced indoor humidity year-round.

Carrier prioritizes energy efficiency with high ratings for HSPF and SEER, helping homeowners save on heating and cooling costs while reducing their environmental impact. For even greater efficiency, homeowners can consider investing in a Carrier geothermal heat pump for sustainable indoor comfort.

Carrier’s most state-of-the-art model is the Infinity® Variable-Speed Heat Pump With Greenspeed® Intelligence, featuring a SEER2 of up to 22 for increased energy savings. It also offers premium comfort features and a quiet performance.

Comparing Warranty Information

When it comes to warranty coverage, both Lennox and Carrier offer comprehensive protection for their HVAC systems, providing peace of mind to consumers.

Lennox typically offers warranties ranging from 5 to 10 years on parts, with extended warranty options available for added protection. It also offers a 20-year or lifetime warranty on furnace heat exchangers (depending on the model).

Similarly, Carrier provides warranties ranging from 5 to 10 years on parts, with extended warranty options available for additional coverage. Carrier offers a 5-year to lifetime warranty on its line of furnaces.

Lennox vs Carrier: Choosing the Right HVAC System

Ultimately, the decision between Lennox and Carrier HVAC systems depends on your specific requirements, preferences, and budget. Both brands offer a range of models with advanced features and reliable performance, backed by extensive warranty coverage.

Before making a decision, consider factors such as the size of your home, desired energy efficiency, and any specific features or technologies that are important to you. Additionally, consult with HVAC professionals to assess your needs and recommend the best system for your home or business.

Whether you choose Lennox or Carrier, rest assured that both brands are committed to providing quality products and exceptional service to ensure your indoor comfort all year-round.

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