Lennox Central Air Conditioners

Everything you need on Lennox Central Air Conditioners, including model details, industry rankings and customer reviews, all in one place.

Lennox Central Air Conditioner Overview

Lennox was founded in 1895 when Dave Lennox invented the world’s first riveted-steel furnace. In 1952, Lennox began producing residential central air conditioners. The manufacturer later introduced the first two-speed hermetic compressor for ACs in 1974 and the first AC with an energy-efficiency rating of 15 SEER in 1984. In addition to ACs, the company’s current product lineup includes furnaces, boilers, garage heaters, heat pumps, air handlers, thermostats, and indoor air quality systems.

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Consumer Reviews of Lennox

1.7

  • Very Satisfied
    30
  • Somewhat Satisfied
    4
  • Neutral
    2
  • Somewhat Unsatisfied
    12
  • Very Unsatisfied
    150
  • #20 of 67 Central Air Conditioners
  • 17.17% of customers recommended

Air conditioner overview

Air conditioners use built-in hardware components and chemical compounds known as refrigerants to chill the air inside of a building. The main components include a compressor for converting liquid refrigerant into gas, a condenser coil for turning the gas back into liquid, and an evaporating coil for converting the liquid back into gas. The gas produced in the evaporator coil absorbs heat. The cold air produced at this stage is then blown into the home by a fan. 

If you’re shopping for a residential air conditioner, you’ll find two major types: room ACs, designed to cool a single room, and central ACs, designed to cool an entire home. All Lennox ACs are central ACs.

There are also two main types of central ACs: packaged systems and split systems. In a packaged system, all components are housed in a single HVAC unit, which sits in an outdoor cabinet. A split-system AC features two parts: an outdoor unit containing the compressor and an indoor air handler.

Traditionally, both types of central ACs require ducts to move cool air throughout the home. The system pulls air in from outside, cools it, then pushes it through various rooms in the house through the ductwork. 

However, Lennox also offers mini-split systems, which don’t require ductwork. Instead, the outdoor and indoor units communicate through a refrigerant line, requiring only a small hole to be placed in the wall. Three of the four products in the mini-split family are heat pump systems, which can heat and cool a home, and the other product, model MCA, is an air conditioner system for cooling only. The mini-split systems are typically used for individual rooms, such as sunrooms and add-on rooms, where the installation of ductwork wouldn’t be pragmatic. Model MCA offers a 20 SEER rating.

Lennox AC series and models

Lennox offers 11 traditional packaged system models at various price points and efficiency levels. Lennox divides its packaged ACs into three series: the high-end Dave Lennox Signature Collection, mid-range Elite Series, and entry-level Merit Series

Lennox packaged units feature sleek designs and all but two of the units comply with federal Energy Star guidelines. The 11 models’ SEER (Seasonal Energy Efficiency Rating) ratings range from 13 to 26. SEER ratings are determined by dividing the total number of BTUs (British Thermal Units) removed from the air by the amount of energy that the air conditioner requires in watt-hours. The higher the SEER rating, the more energy efficient the product. 

Unfortunately, Lennox packaged central ACs are not known for being quiet. Their average noise level is 70Db, which is much louder than the industry average of 40Db to 60Db.

Below, we cover five popular central AC models from Lennox, along with estimated average pricing from Airconditionerlab.com. However, many factors affect pricing, such as unit size, type of home, and location. Contact a local HVAC professional for accurate pricing information. 

Merit 13ACX

With a SEER rating of 13, the Merit 13ACX is one of two packaged central AC units from Lennox that’s not Energy Star eligible. The unit uses a single-speed compressor, meaning that the AC only has one phase: full speed. It operates at full speed when cooling the room and turns off once the desired temperature is reached.

Like other packaged AC units from Lennox, this unit is housed in a heavy-duty PermaGuard cabinet made of galvanized steel. Its scroll compressor works with an outdoor coil protected by a corrosion-resistant guard. The unit’s estimated price is $1,475 without installation and $3,090 with installation.

The 13ACX is not available in some states. If you live in Arizona, California, Nevada, or New Mexico, ask your dealer about another unit, like the ML14XC1. Ask about the 14ACX if you live in one of the following states: Alabama, Arkansas, Delaware, Florida, Georgia, Hawaii, Kentucky, Louisiana, Maryland, Mississippi, North Carolina, Oklahoma, South Carolina, Tennessee, Texas, or Virginia.

Merit 16ACX

The 16ACX is the top-end model in the Merit Series. The two-stage AC operates at lower speeds most of the time but runs higher when heavier cooling is needed. The multi-stage compressor lowers humidity by maintaining constant air circulation in the home. 

Like other central ACs from Lennox, the 16ACX is available in many sizes, measured by BTUs, ranging from 18,000 to 57,000 BTUs. The SEER rating for this unit is 17, with an estimated price of $1,690 without installation and $3,295 with installation.

Elite EL16XC1

This single-stage central AC achieves a SEER rating of 17. The EL16XC1 is relatively quiet for a Lennox AC, offering noise levels as low as 71Db. In comparison, Merit Series units feature noise levels as low as 75Db or 76Db. The estimated average price of the EL16XC1 is $2,080 without installation and $4,525 with installation

Elite XC20

The Elite XC20 was designated by the federal government as among the most efficient Energy Star-eligible appliances of 2019. Its SEER rating of 20 is well above the industry average.

This model also comes with what Lennox describes as “true variable-speed capacity.” According to the company, it works somewhat like a dimmer switch, adjusting cooling output in tiny increments to meet comfort needs. The unit also offers sound levels as low as 65Db. The estimated average price is $2,690 without installation and $4,495 with installation.

Signature XC25

The XC25 is Lennox’s top packaged central AC unit, with a SEER of 26 and sound levels as low as 59Db. Signature models come with a special feature called SunSource, which allows integration with a new or existing solar array. The system first uses any solar energy generated by your house to power the HVAC system. It then uses leftover energy to power other electronics and appliances in the home.

Like the Elite XC2, the top-of-the-line unit offers “true variable-speed capacity.” Lennox states that the machine can adjust cooling output to the needs of the indoor environment in increments as small as 1%. The estimated average price of the unit is $3,775 without installation and $7,190 with installation.

Care and maintenance

Lennox offers several care and maintenance tips for customers to prolong the lifespan of their AC units. One of these tips includes routinely removing leaves, dirt, and grass clippings from around the exterior unit to keep debris from decreasing system capacity and reducing airflow. You should also trim any foliage back from around the unit to prevent it from interfering with the unit’s airflow.

Lennox also recommends that you regularly replace and clean the air filters. Generally, one-inch pleated filters should be replaced once a month. For all other filter sizes, your Lennox dealer will check, clean, or replace them at your annual maintenance visit. However, if you use your AC very frequently, live in a home with lots of dust, or have pets generating dander and debris, your filters might need more frequent attention. Your dealer can advise you on the frequency that’s best for your system.

Lennox air conditioner warranties

Lennox’s packaged AC warranties vary by series. Merit and Elite models come with separate warranties for the compressor and covered components. Merit ACs come with five-year compressor and covered component warranties. Elite models come with 10-year compressor and five-year covered component warranties. You can extend the covered component warranties to 10 years on select Merit and Elite models by registering the product. Signature models come with 10-year compressor and covered component warranties. 

Ductless mini-split systems come with five-year warranties on covered components and compressors. You can extend the warranty by five years on parts and seven years on compressors by registering the product.

You can also buy a three-year, five-year, or 10-year Comfort Shield Labor Warranty from a third party, which covers labor costs when your air conditioner needs repairs.

Conclusion

Lennox is a very well established HVAC manufacturer with a long history of innovation. The company produces highly energy-efficient central air conditioners, though Lennox AC units tend to be louder and more expensive compared to direct competitors.

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Lennox Central Air Conditioner Reviews

Showing 6-10 of 197 reviews

"Don't make the mistake I did"

1.0 rating
Very Unsatisfied

I paid 8800.00 for a new Lennox unit. Needless to say that after 2 years this unit has stopped working. The dealer that sold me this unit said that a "valve" was the problem. Fixed the valve, still not working. I have asthma and live in Florida and needless to say it is hot. I have been without air for about a week now while they are trying to figure out what is wrong with this unit. To make things even worse I have to pay the service company that is fixing it 600.00 because the parts may be covered but the service isn't. I have never dealt with such a not so nice company. Beware and really do your homework when buying an ac unit.

Cindy Demos

Pensacola, FL

"They Stink"

1.0 rating
Very Unsatisfied

Do not buy an air conditioner from this company. Many years ago I sold new construction and the company at that time had a good reputation. Our local heating and cooling company, Care in Columbus Ohio, recommended them and we bought a unit. I did not work properly from day one. All it has done is run up our electric bills, and empty our bank accounts for work that never fixed anything. The local company was just as bad as Lennox. If you live near Columbus Ohio do not use Care Heating and Cooling. They could care less about the work only about your check book.

Laurie Block

Dublin, OH

"Don�t Buy"

1.0 rating
Very Unsatisfied

We purchased Lennox Ac/ heat central air for my elderly parents so they would be compfortable in both summer and winter. The unit was installed in June 2017 they live in Fl so the heat was never used until late Nov. 2017 the installers had came out noticed the Rebersal Valve wasn't working properly we were informed the part is covered under warranty however to change the part the Freon had to be emptied and to replace the Freon would cost about $160 (money which they do not have). I called Lennox and was told they only covered the part I told them the unit came defective and is less then 6 months old they shouldn't pay anything out of pocket . Lennox then told me the units are checked before shipping so if something happens to them during transport it's not there responsibility and that's why they offer a warranty on parts. That is bs to have to pay for something that if it worked properly in the first place they wouldn't be in this situation now. The customer service line you have to wait on hold for 11/2 hours for them to do nothing except read you the warranty information no exceptions.

Linda

Florida

"Lennox failure"

2.0 rating
Somewhat Unsatisfied

Regarding prior posting…The conclusion to the Lennox complaint. Lennox reimbursed me $650 of my $750 out of pocket labor charges after complaining in a letter to the president of Lennox I still feel uneasy about whether these early failures will continue.

rod scales

Dallas, TX

"Quality"

2.0 rating
Somewhat Unsatisfied

I purchased our Lennox ac unit 3 years ago from Costco and now I'm told by Collins ac who installed it that the coil is leaking and needs to replaced at a cost of $600 plus for labor as the coil is under warranty. If I recall wasn't there a class action suit against Lennox for faulty tubing in their coils? What became of that suit and how was it settled ?

John sweet

Sun Lakes, AZ

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