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Last updated on Feb 28, 2020

Lennox Air Conditioner Review

Affordable with several series of energy-efficient machines, Lennox offers reliable air conditioning units ​
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Lennox

  • Most machines are Energy Star-rated
  • Expansive warranty programs
  • Affordable range of products
  • Helpful comparison tools
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How We Reviewed Lennox Air Conditioning

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11 models compared

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7 features evaluated

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500 ratings analyzed

Lennox Air Conditioner Review

Since 1895, Lennox has been manufacturing products to control indoor temperatures. After helping bring the riveted cast-iron furnace to market, the company has transitioned to produce quality air conditioning units. Available through its Signature, Elite, and Merit series, Lennox offers flexible financing plans that make these machines accessible to a variety of different budgets.

Lennox has committed to producing energy-efficient products for residential and commercial use. This is shown through each machine’s SEER rating, which judges energy efficiency. Lennox units are available through three series with SEER ratings of 13 through 26. The three series include budget-friendly Merit series, the middle-ground Elite series, and its flagship Dave Lennox Signature Collection, named after the company’s founder.

One such example is variable refrigerant flow (VRF) to help larger properties achieve and maintain the ideal temperature. The smart thermostat is another opportunity to save on heating and cooling costs by providing users the ability to adjust temperatures at any time. Some energy-efficient systems may also be eligible for utility rebates and incentives, as well as solar tax credits through 2021.

It’s common for machines to fluctuate within three degrees of the thermostat, but Lennox systems are surprisingly accurate, remaining within just one degree of the set temperature. These air conditioning units utilize variable-speed blowers and adjustable burner controls to regulate heating and power. It makes these machines incredibly accurate and highly reliable.

Pros: Cons:
  • Most machines are Energy Star-rated
  • Expansive warranty programs
  • Affordable range of products
  • Helpful comparison tools
  • Can only purchase through a dealer
  • Sound ratings are higher than similar competitors
  • When shopping for a new air conditioner, there are certain factors that you need to keep in mind. A machine’s SEER rating will demonstrate its energy efficiency, which not only affects its performance but also the cost of your utility bills each month. Pricing can be a bit tricky; consumers are limited to third-party dealers in order to make their purchases. You’ll also want to ensure the unit is Energy-star rated to help keep maintenance costs low. A higher sound rating can be mitigated depending on where you place the air conditioning unit.

    Lennox Overview

    • Efficiency (SEER rating): 13 to 26 SEER
      • Model options: 11 total
      • Dave Lennox Signature: Models XC25, XC21, SL18XC1
      • Elite: Models XC20, XC16, EL16XC1, XC14, XC13
      • Merit: Models ML14XC1, 14ACX, 13ACX
    • Warranty:
      • Elite models: 5-year component and compressor coverage and 10-year heat exchanger coverage
      • Merit models: 5-year component and compressor coverage and 20-year heat exchanger coverage
      • Signature models: 10-year component and compressor coverage and 20-year heat exchanger coverage
    • ENERGY STAR rating: 8 total – XC25, XC21, SL18XC1, XC20, XC16, 16ACX, ML14XC1, 14ACX

    Lennox Air Conditioner Prices by Model

    Lennox AC Model
    SEER Rating
    Average Model Cost
    Sound Rating
    Unit Size
    Cooling Area
    Dave Lennox Signature Model XC25
    Up to 26
    $3,775
    59 dB
    5 tons
    1,500-2,500+ sq. ft.
    Dave Lennox Signature Model XC21
    Up to 21
    $2,875
    76 dB
    2-5 tons
    1,500-2,500+ sq. ft.
    Dave Lennox Signature Model SL18XC1
    Up to 18.5
    $2,450
    65 dB
    2-5 tons
    1,500-2,500+ sq. ft.
    Elite Model XC20
    Up to 20
    $2,690
    65 dB
    2-5 tons
    1,500-2,500+ sq. ft.
    Elite Model XC16
    Up to 17
    $2,175
    74 dB
    2-5 tons
    1,000-2,500+ sq. ft.
    Elite Model EL16XC1
    Up to 17
    $2,080
    71 dB
    1.5-5 tons
    1,000-2,500+ sq. ft.
    Elite Model XC14
    Up to 16
    $1,795
    70-73 dB
    1.5-5 tons
    1,000-2,500+ sq. ft.
    Elite Model XC13
    Up to 15.5
    $1,690
    74 dB
    1.5-5 tons
    1,000-2,500+ sq. ft.
    Merit Model ML14XC1
    Up to 16
    $1,700
    76 dB
    1.5-5 tons
    1,000-2,500+ sq. ft.
    Merit Model 14ACX
    14-16
    $1,550
    76 dB
    1.5-5 tons
    1,000-2,500+ sq. ft.
    Merit Model 13ACX
    Up to 13
    $1,475
    76 dB
    1.5-5 tons
    1,000-2,500+ sq. ft.

    Energy efficiency – SEER rating

    A SEER rating, or Seasonal Energy Efficiency Ratio, is the industry’s measuring stick when it comes to energy efficiency in air conditioning units. These ratings all ensure that A/C units fall within the 2015 federal mandates for cooling efficiency and the requirements are different for various areas of the country.

    The average Lennox machine has a 17.8 SEER rating, but this varies depending on the type of air conditioning unit you buy. Lennox machines have become synonymous with energy-efficiency, and air conditioning units are available in multiple sizes with anywhere from 13 to 26 SEER.

    Warranty options

    Lennox offers comprehensive warranty options depending on which series you choose. The better the series, the higher your coverage will be through comprehensive Lennox warranty policies.

    Merit models include a warranty with a 5-year component and compressor coverage and 20-year heat exchanger coverage. Elite models have a 5-year component and 10-year compressor coverage with 20-year heat exchanger coverage depending on the model. Signature models feature the best coverage, with a 10-year component and 10-year compressor coverage and 20-year heat exchanger coverage. There is also two or five-year insurance on covered components within the Healthy Climate Indoor Air Quality Systems, Lennox Comfort Controls, thermostats, and zoning systems. Five-year coverage is also provided for covered parts under the Ductless Mini-Split Systems.

    Dissatisfied with your coverage? There’s no reason to worry because Lennox also offers an Extended Warranty option for most of its units that provides your home with extra coverage.

    Installation and maintenance

    The average cost to install a Lennox machine ranges from $2,500 to $4,200. Pricing depends not just on the model you choose but also on which dealer you purchase from. Lennox does not sell directly to consumers, so you will need to work with a licensed dealer for your purchase.

    Prices vary depending on the model and size you choose, along with where you live. While Lennox recommends its partnered dealers for installation and maintenance, those services are also available from Lowe’s or Home Depot, while the Dave Lennox Signature Series is available exclusively through certified Dave Lennox Premier Dealers.

    Sound rating

    A decibel (dB) is a measure of sound that is used to express how loud an air conditioning unit is. When shopping for a machine, you rarely are able to hear how loud a machine will be during use, so this numerical system helps to give consumers an idea of just how loud their new machine will be.

    With special technology like SilentComfortTM, Lennox machines are both ENERGY STAR-rated and in compliance with EPA’s environmental guidelines. According to Lennox, “it would take 20 HSX15s (running at full speed) to equal the sound from one typical air conditioner.”

    Compare to Other Air Conditioner Brands

    Lennox
    Gree
    Day and Night
    SEER rating
    13-26
    16-38
    13-19
    ENERGY STAR rating
    8/11 models
    1/15 models
    6/13 models
    Warranty
    Up to 20 years
    Up to 7 years
    Up to 10 years
    Sound rating
    Up to 76
    Up to 56
    Up to 76

    *All information accurate as of Jan. 12, 2020.

    Lennox vs. Gree Air Conditioners

    Lennox offers energy efficiency coupled with affordability. Most importantly, there are tons of choices, so there is nearly something for everyone, no matter your needs or budget. Gree offers more units than Lennox, and yet only one is ENERGY STAR-rated. Gree’s most powerful unit easily tops Lennox with a SEER rating of 38 compared to 26 for Lennox, but Lennox wins the warranty race, offering 20-year coverage compared to just seven from Gree.

    Lennox vs. Day and Night Air Conditioners

    Day and Night is an affordable manufacturer for air conditioners, and like Lennox, it offers a significant amount of ENERGY STAR-rated air conditioners. However, Lennox machines are much more powerful, therefore better suited for larger properties and costing up to $1,500 more than Day and Night units. Lennox also offers a more robust warranty policy, easily doubling the warranty offered by Day and Night.

    About the Authors

    The Reviews.com staff is dedicated to providing you with all the deep-dive details. Our writers, researchers, and editors came together from Charlotte, Seattle, San Juan, Fort Worth, Fort Lauderdale, San Diego, and Chicago to put this review together.