Lennox Central Air Conditioner Prices | 2022 Buying Guide

Lennox first introduced the riveted-steel furnace in 1895 and has become one of the most trusted names in the home HVAC business. They have gained a reputation for making high quality products that are well built and innovative, with a focus on energy efficiency. According to Consumer Reports Lennox was found to be the most reliable home ac systems by consumers. Lennox is consistently looking for new ways to create a better home environment for its customers and have many strides in solar HVAC solutions.  If you are looking for a quality product, built by a well respected company then Lennox central air conditioners could be the choice for you.


Lennox is widely considered to be one of the highest quality AC and HVAC systems for your home. Other brands in the same quality tier include: Trane, Carrier, and American Standard.

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AC Unit Pricing

The costs of the Lennox AC units in the table below were calculated with a common average size of 2.5 tons of cooling. Like other leading manufacturers, Lennox points out that pricing is as individual as your home. The prices shown below are merely estimates, based on the most common factors found in most homes.

Lennox Air Conditioner Prices by Model Name

Unit Model
Efficiency Rating
Unit Only Cost
Installed Cost
Lennox XC25 26 SEER $3,775 $7,190
 Lennox XC21  21 SEER $2,875 $4,780
 Lennox SL18XC1 18 SEER $2,450 $4,275
 Lennox XC20  20 SEER $2,690 $4,495
 Lennox XC16  17 SEER $2,175 $3,880
 Lennox EL16XC1  17 SEER $2,080 $4,525
 Lennox XC14 16 SEER $1,795 $3,400
 Lennox XC13  15 SEER $1, 690 $3,295
 Lennox ML14XC1  16 SEER $1,700 $3,200
 Lennox 14ACX  16 SEER $1,550 $3,159
 Lennox 13ACX  13 SEER $1,475 $3,090

Prices by Size

The table below represents the different size Lennox central air units available for the most common home installations. The cooling area is an estimate, based on the average size area it will cool. The only way to know which size you need in your home is to have Lennox dealer come to your location and calculate the size according to your homes’ needs.

Lennox AC Units Priced by Unit Size

Unit Size
Cooling Area
Unit Only Cost
Installed Cost
1.5 Tons 600 – 1000 sqft $1,695 $3,345
2 Tons 1000 – 1300 sqft $1,795 $3,399
2.5 Tons 1300 – 1600 sqft $1,850 $3,575
3 Tons 1600 – 1900 sqft $1,975 $3,798
3.5 Tons 1900 – 2200 sqft $2,220 $4,275
4 Tons 2200 – 2600 sqft $2,345 $4,455
5 Tons 2600 – 3200 sqft $2,810 $5,510

Owner Provided Pricing

The table below contains actual prices submitted to us by Lennox air conditioner owners, or customers who have agreed to share the cost they paid for their Lennox system. If you own a Lennox system, please consider sharing the price with future visitors.

City, State
Home Size
AC Size & Model
Cost Includes
Actual Cost
Durham, NC  2000 sqft  3-Ton XC21 AC, Coil, Installation
Chicago, IL  2975 sqft  5-Ton XC25 AC, Installation, Thermostat $5,935
Easley, SC  1550 sqft  2.5-Ton ACX13 AC, Coil, Furnace $5,865
Houston, TX  1800 sqft  3-Ton XC16 AC, Installation $3,798
San Jose, CA  1600 sqft  3-Ton XC25 AC, Installation $5,990
Santa Fe, NM  3000 sqft  5-Ton XC20 AC, Coil, Installation $5,700

Tax Credits, Special Offers & Rebates

When purchasing a new Lennox central ac system, it never hurts to review all savings opportunities you may be eligible for. In addition to specific units qualifying for both federal and state tax credits, Lennox offers attractive financing and rebate offers on specific units. The links to each is listed below.

List of Current Lennox AC Units

The list of units below are the current models available at Lennox in 2017. To learn more about each unit, read more at the Lennox Central Air Conditioners page of their website.

Signature Collection:

  • Dave Lennox Signature – Model XC25
  • Dave Lennox Signature – Model XC21
  • Dave Lennox Signature – Model SL18XC1

Elite Series:

  • Elite – Model XC20
  • Elite- Model XC16
  • Elite- Model EL16XC1
  • Elite- Model XC14
  • Elite- Model XC13

Merit Series:

  • Merit – Model ML14XC1
  • Merit- Model 14ACX
  • Merit- Model 13ACX

Corporate and Contact Information

Lennox Industries is based in Richardson, TX and has distribution facilities across North America.  Their customer service department can be reached at: 1-800-9-LENNOX (1-800-953-6669) , and they are available daily from 9am to 7pm EST .

Lennox Industries Corporate
2100 Lake Park Blvd.
Richardson, TX 75080
P.O. Box 799900
Dallas, TX 75379-9900

New Customers – 1.877.726.0024
National Accounts – 1.800.367.6285
Emergency Replacement – 1.877.792.0024
Commercial Parts/Tech Support – 1.800.4.LENNOX (1.800.453.6669)

Dave Lennox Premier Dealers

Lennox contractors have the Dave Lennox Premier Dealer certification which is an independent customer-satisfaction review process. Only the highest rated can identify themselves as a Premier Dealer. That is why you can always count on quality products and superb service from Lennox contractors.

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