How Much Does a Lennox Air Conditioner Cost?

The cost of a Lennox air conditioner can range from around $5,000 to $14,000, including installation, old furnace removal, and labor. The prices vary depending on the model and series, with the Dave Lennox Signature Series being the most premium, costing between $7,000 and $13,000. The Elite Series is the middle-of-the-road product range, while the Merit Series offers excellent value for the money, with prices falling between $5,000 and $9,000.

Factors Affecting Lennox Air Conditioner Costs

1. Model and Series

  • Dave Lennox Signature Series: The most premium series, costing between $7,000 and $13,000.
  • Elite Series: The middle-of-the-road product range.
  • Merit Series: Offers excellent value for the money, with prices falling between $5,000 and $9,000.

2. Unit Size and Cooling Capacity

  • The cost of Lennox air conditioners also depends on the size of the unit needed for your home.
  • For a 1,600 square foot home, you would most likely need a 2.5-ton air conditioner, which can cost between $3,110 and $7,340 to install.
  • The cost of installation can range from $4,400 to $8,600 for the smallest available size of the condensing unit with coil.
  • When calculating the size of the Lennox air conditioner you need, consider your home’s square footage and the fact that an air conditioner can cool up to 400 square feet per 1 ton of air conditioning capacity.

3. Energy Efficiency (SEER Rating)

  • Lennox air conditioners have SEER (Seasonal Energy Efficiency Ratio) ratings ranging from 13 to 26, with higher ratings indicating greater energy efficiency.
  • Higher SEER ratings typically come with a higher upfront cost, but they can lead to significant long-term savings on energy bills.
  • For example, a Lennox air conditioner with a SEER rating of 26 may cost more upfront, but it could save you hundreds of dollars per year on your energy bills compared to a lower-efficiency model.

4. Noise Level (Decibel Rating)

  • Lennox air conditioners have decibel levels ranging from 59 to 75, with lower levels indicating quieter operation.
  • Quieter units typically come with a higher price tag, but they can provide a more comfortable and peaceful living environment.

5. Warranty Coverage

  • Lennox air conditioners come with a standard 5-year parts warranty.
  • You can upgrade to a 10-year parts warranty and a lifetime compressor warranty for additional peace of mind.
  • The extended warranty coverage can add to the upfront cost of the unit, but it can provide long-term protection and value.

Comparing Lennox to Competitors

how much does Lennox  air conditioner costImage source: Lennox Ac by Raysonho

  • Lennox air conditioners are premium and come at a higher price tag than some competitors.
  • However, Lennox units offer excellent value across their entire range of products, including air conditioners, furnaces, heat pumps, mini-split systems, and more.
  • Lennox is known for its durability, energy efficiency, and quiet operation, making it a popular choice among homeowners.


While the cost of a Lennox air conditioner may be higher than some competitors, the long-term savings, durability, energy efficiency, and quiet operation make it a worthwhile investment for homeowners looking for a high-quality air conditioning system. By considering the various factors that affect the cost, such as model, size, energy efficiency, noise level, and warranty coverage, you can make an informed decision and find the Lennox air conditioner that best fits your needs and budget.

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