In a rush? Call us 844-262-5082

Updated on

Lennox SL18XC1 Air Conditioner Overview

The Lennox SL18XC1 is a single-stage, Energy Star certified air conditioner with an efficiency rating of up to 18.50 SEER. It is part of the Dave Lennox Signature Collection and uses SilentComfort technology, which combines thick insulation, a specially designed fan blade and vibration resistance to provide sound levels as low as 65 decibels. It is iComfort-enabled, allowing the SL18XC1 to share information and make adjustments from home or remotely when combined with an iComfort thermostat. The unit features a corrosion-resistant Lennox Quantum coil constructed of aluminum alloy, and a SmartHinge louver design which improves service capability by allowing easy access to internal components from all sides. A heavy gauge galvanized steel cabinet with baked-on powder finish and zinc-coated steel base protect the unit against rust and corrosion. The SL18XC1 is solar-ready and can be combined with solar roof panels to save energy.

Questions about this model?

Read more about Lennox Air Conditioners

Read Reviews of Other Lennox Products

Find ratings and reviews for Lennox Air Conditioners, Boilers and more

Read Reviews

Top 10 Air Conditioners

See who made our list of the best Air Conditioners of 2020.

See the Top Products

Find a Certified Heating & Cooling Professional In Your Area

Contact a top-rated local expert to help with all of your home's HVAC needs.

Other SL18XC1 Reviews

Among the very few comments regarding the SL18XC1 on HVAC forums was one from a homeowner on hvac-talk.com who asked for opinions on the SL18XC1 versus a comparable Comfortmaker unit. Nearly every answer from professional members stated that the most important things are proper sizing and quality install.

SL18XC1 Warranty

Product registration is required within 60 days of installation for maximum warranty coverage. The warranty for the Lennox SL18XC1 air conditioner is comprised of the following:

  • 10-year limited warranty on the compressor
  • 10-year limited warranty on covered components

An Extended Limited warranty and a Complete Care Plus Extended warranty, which covers parts and labor, are also available.

Best Heating & Cooling Products

See ratings and reviews for the best in furnaces, air conditioners, heat pumps, boilers and more.

Air Conditioners Air Conditioners Heat Pumps Heat Pumps Furnaces Furnaces

HVAC Brands

Learn more about your home's heating and cooling system with our guides, how-to's, FAQ's, tips and more.

Trane American Standard Lennox Carrier Goodman
View All HVAC Brands

Ready to get a quote from an HVAC contractor?

Let us know what type of service you need and we can connect you with a certified local HVAC contractor.

Please enter a valid name

Please enter a valid phone number

Please enter a valid zip code

There are no dealers in this zip code.

Please enter a valid email address

Please select repair or replace

Please select heating, cooling or both

By entering your phone number and clicking the "Submit" button below, I agree to the following:

  • www.furnacecompare.com's Privacy Policy and Terms of Use.

  • I am providing my prior express written consent to share my information with FurnaceCompare.com's, Networx and, and Networx’s authorized parties calling on their behalf, to deliver calls or text messages to my phone number provided above, for the purpose of home improvement requests & contractor bids, using an automated telephone dialing system or an artificial or prerecorded voice. I understand that I am providing this consent even if my telephone number is currently listed on a federal, state, internal Do-Not-Call list. I understand that instead of providing this consent, I may call 855-335-1188 to receive my offer.

  • I understand that I do not have to agree to receive these types of calls or text messages as a condition for purchasing any goods or services.

HVAC Trusted Dealers

  • Trane U.S. Inc.
  • American Standard Heating & Air Conditioning