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Lennox Air Conditioner Review and Buying Guide 2019

(Updated for 2019)

Your complete Lennox air conditioner buying guide, including top models, prices, SEER ratings, features, warranty info, and more. Get your free quote quickly & easily!

A new air conditioner is a big investment for your house, so it’s important to do plenty of research, brand comparisons, and price shopping before you settle on a specific model from a particular manufacturer. To make that job easier for you, we’ve put together this handy guide that will tell you everything you need to know about Lennox air conditioners and the different models, features, price points, and efficiency ratings the company offers.

Lennox Air Conditioners, At a Glance

Strong Points

Lennox has over 10 air conditioners in their line for you to choose from, from the more affordable Merit Series to the premium Dave Lennox Signature Collection. The company puts energy savings first, so most of their models have a SEER of 16 or above, earning the majority of their product line an ENERGY STAR rating. Every air conditioner in their line, including the lower-end models, are still built with the highest standards for durability, reliability, and efficiency.

Room For Improvement

Lennox is a premium brand, and that means they come with a premium price tag so this might not be the brand for people who are looking for both quality and affordability. Another issue that customers have with Lennox is that replacement parts can be more difficult to come by, and this means you might have to wait longer for repairs if your unit breaks down.

Finally, while Lennox does offer warranties on all their cooling systems, they don’t have the limited replacement warranties that other manufacturers have started offering.

The Bottom Line

Lennox has over 100 years of experience in the HVAC industry, and they focus on quality-made air conditioners that boast great efficiency ratings and provide dependable comfort during the hot summer months. They have plenty of models to choose from, and as long as you have the budget for a premium brand, then you’re sure to find a cooling solution from Lennox that suits your needs.

➤ Get the BEST Prices on Lennox air conditioners:  Fill out a free quote request here

General Price Range for Lennox Air Conditioners

$3,200 and $6,000 (with installation)

As a premium brand, Lennox air conditioners tend to be more expensive than those from other manufacturers. Plenty of factors can influence this price, however, and you may end up paying more or less than this average based on these factors:

  • Unit size and BTU cooling output
  • Where you live (rural versus urban, HVAC competition in the area, licensing requirements in your city or town, etc.)
  • Efficiency rating
  • Installation complications
  • Current deals or promotions
  • Energy efficiency or other rebates

Introduction to the Lennox Air Conditioner Series

Good – Merit Series

The more affordable air conditioners in the Lennox line are from the Merit series, which features single- and multi-stage air conditioners for reliable cooling in the summer. Units in this series have a SEER rating between 13 and 17, including two with ENERGY STAR certification. As these are the lower-end models in the Lennox product offering, these air conditioners aren’t compatible with many of the technologies and features available with the mid-range and premium models.

Better – Elite Series

The next step in terms of price point, efficiency ratings, and features are the Lennox Elite Series, which includes several ENERGY STAR certified air conditioners with a SEER rating between 15.5 and 20. This includes single-stage, multi-stage, and variable-capacity air conditioners to give you the most cooling capacity for every dollar you spend on energy. Certain models in this series are also compatible with great Lennox technologies like the Humiditrol dehumidification system.

Best – Dave Lennox Signature Collection

Lennox’s top-of-the-line series is the Dave Lennox Signature Collection, and all three models in this series are ENERGY STAR certified, with SEER ratings ranging from 18.5 to 26. Two models even won the ENERGY STAR Most Efficient of 2018 award. There are single-stage, multi-stage and variable-capacity air conditioners in this series, and they can be paired with technologies like the Precise Comfort® technology and the SunSource Home Energy System.

Comparison of Lennox’s Top Models

Dave Lennox Signature Collection XC25

The XC25 high-efficiency air conditioner is the top-of-the-line product from Lennox. It earned the ENERGY STAR Most Efficient of 2018 award, and it’s compatible with all the technologies and features Lennox has to offer. This model is a variable-speed air conditioner, meaning the system is always blowing cool air around the house to maintain the perfect indoor air temperature.

Dave Lennox Signature Collection XC25

SEER – 26
Air conditioner type – Variable-capacity
ENERGY STAR rated? Yes
Tier – Premium

Dave Lennox Signature Collection XC21

This multi-stage cooling system provides more reliable and even cooling than its single-stage counterparts, and was also awarded the ENERGY STAR Most Efficient of 2018 designation. It’s also compatible with all of Lennox’s great technologies, including Humiditrol and the SunSource Home Energy System, plus its equipped with SilentComfort technology for quiet operation.

Dave Lennox Signature Collection XC21

SEER – 21
Air conditioner type – Multi-stage
ENERGY STAR rated? Yes
Tier – Premium

Dave Lennox Signature Collection SL18XC1

The SL18XC1 is equipped with all the same capabilities and features as the other models in the Dave Lennox Signature Collection, but it has a more standard single-stage compressor. This unit features the Lennox Quantum coil, which is an aluminum-alloy coil specifically designed to resist corrosion.

Dave Lennox Signature Collection SL18XC1

SEER – 18.5
Air conditioner type – Single-stage
ENERGY STAR rated? Yes
Tier – Premium

Lennox Elite XC20

The best things about the XC20 are that it has a variable-speed compressor for even temperature control, it’s designed specifically for quiet operation, and it’s highly energy efficient, with a SEER rating of 20. Thanks to its energy performance, it was also awarded the ENERGY STAR Most Efficient of 2018 designation.

Lennox Elite XC20

SEER – 20
Air conditioner type – Variable-capacity
ENERGY STAR rated? Yes
Tier – Mid

Lennox Elite XC16

Another multi-stage air conditioner in the Lennox Elite series is the XC16, and this model is special because it operates at a lower rate than most other cooling systems, allowing for a highly-energy efficient air conditioner that provides dependable, quiet, and steady cooling comfort. This model is also compatible with the Humiditrol technology so it can keep your home at the right temperature and the perfect humidity level all summer long.

Lennox Elite XC16

SEER – 17.2
Air conditioner type – Multi-stage
ENERGY STAR rated? Yes
Tier – Mid

Merit 16ACX

The top-end model in Lennox’s lower end series is the Merit 16ACX, a variable-speed air conditioner with an ENERGY STAR certification and great SEER rating. This model can also be paired with a furnace or air handler to provide enhanced humidity and temperature control.

Merit 16ACX

SEER – 17
Air conditioner type – Multi-stage
ENERGY STAR rated? Yes
Tier – Low

Exclusive Lennox Features

1. Humiditrol

Humiditrol is a whole-home dehumidification system that has been specifically engineered to pair with Lennox cooling systems. This highly efficient dehumidifying system will control humidity and make your home feel cooler, allowing you to turn up the thermostat without sacrificing comfort.

2. SilentComfort Technology

SilentComfort is a special feature offered by Lennox that allows for the quieter operation of their air conditioners and furnaces so your home will be the right temperature without any of the distracting noise often associated with conventional cooling systems.

3. SunSource Home Energy System

SunSource is a convenient and straightforward way to integrate your cooling system with your home’s new or existing solar array. The system will first use any solar energy your home generates to power the HVAC system, and then use any remaining energy to power other appliances and electronics.

Important Warranty Information

Every Lennox air conditioner comes with a warranty that covers parts and compressors, but the length and terms of the warranty will depend on the series. Here’s a breakdown of the warranty terms for the different series:

  • Merit models come with separate five-year warranties for covered components and for the compressor (the parts warranty can be extended to 10 years with registration)
  • Elite models have a five-year warranty for covered components and a 10-year warranty for the compressor (the parts warranty can be extended to 10 years with registration)
  • Signature models have separate 10-year warranties for covered components and for the compressor

Furthermore, there’s also a three-year, five-year, or 10-year Comfort Shield Labor Warranty you can purchase separately from a third-party provider that will cover labour costs should your air conditioner need repairs.

Be a happy homeowner when you purchase an Lennox air conditioner. Fill out our online form and ask for a free quote.


Lennox International was founded by Dave Lennox back in 1895 as a furnace manufacturing company, and they have since expanded their business to include air conditioners and other HVAC equipment and appliances as well.

Lennox is a trusted name in residential heating and cooling systems, and their focus on quality, dependability, and energy efficiency have earned them a great reputation in North America’s HVAC industry.

Eager to learn more about Lennox air conditioners? Fill out an online quote request, and one of our representatives will be happy to provide you with a free, no obligation quote.

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