Meet the Most Efficient System Ever.

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The Ultimate Solution.

Here's how the Ultimate Comfort System handles the most common heating and cooling issues.

Hot & Cold Icons: Ultimate Comfort System produces consistently perfect air.

Hot here? Cold there?

Now, all you’ll get is consistently perfect air.

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Icon Representing Home Energy Bills: Ultimate Comfort System Maximizes Home Energy Efficiency

Overworked system running up your bills?

Unmatched efficiency is the answer.

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Sound Icon: Lennox Ultimate Comfort System Provides Incredibly Quiet Operations

Unbearably noisy?

Count on beyond quiet operation.

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Dog & Pet Allergens: Sniffling and sneezing? Breathe easier with cleaner air.

Sniffling and sneezing?

Breathe easier with cleaner air.

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This is Seamless Precision.

From heating and cooling to air purification and effortless controls, every component of the Ultimate Comfort System works seamlessly together to deliver nothing short of perfect air.

Lennox XC25 Variable-Capacity Air Conditioner

Dave Lennox Signature® Collection
Air Conditioner Heat Pump XC25/XP25

  • The most precise and efficient air conditioner or heat pump you can buy
  • Changes cooling or heating output in increments of 1% for precise comfort and smart energy use
  • Air Conditioner has industry-leading cooling efficiencies of up to 26 SEER
  • Recognized as the Most Efficient of ENERGY STAR® 2020
Lennox SLP99V Variable-Capacity Gas Furnace

Dave Lennox Signature® Collection
Variable-Speed Gas Furnace SLP99V

  • More efficient than anything the industry has ever seen, boasting an up to 99% efficiency rating
  • The quietest furnace you can buy
  • Keeps the temperature held exactly where you want it, without any cold spots
  • Recognized as Most Efficient of ENERGY STAR® 2020
  • Sensors that ensure it's finely tuned to your home and help react, diagnose and troubleshoot with your dealer
Air Handler CBA38MV

Dave Lennox Signature® Collection
Air Handler CBA38MV

  • Most efficient air handler you can buy
  • The quietest air handler you can buy
  • Keeps the temperature held exactly where you want it, without any cold spots
  • Features Quantum Coil Technology which is designed to weather the harshest elements
  • Microbial drain pan prevents mold and mildew
Lennox PureAir S Air Purification System

Dave Lennox Signature® Collection
Pure Air S Purification System

  • Sensing and communicating, and cleans the air in your home better than any other single system you can buy
  • Unmatched purification of all 3 major types of indoor air pollution
  • Healthier, cleaner air - does not produce ozone and reduces ozone
  • Removes 99% of mold spores, pollen, dust and pet dander
  • Destroys and neutralizes odors
  • Active monitoring alerts keep you informed on filter performance
Lennox iHarmony Four-Zone Airflow Management

iHarmony® Zoning System

  • Consistent, even temperatures
  • Room-to-room precision climate control
  • Four-zone system enables individualized temperature control
  • Year-round energy savings
  • Control remotely with your smartphone
Lennox iComfort S30 Ultra Smart Thermostat

Dave Lennox Signature® Collection
iComfort® S30 Ultra Smart Thermostat

  • The ultimate controller for precise comfort
  • Awarded Green Builder Editor’s Choice Hot 50 Products 2020
  • Active monitoring alerts keep you informed on system performance
  • Allergen Defender monitors air quality in your zip code and automatically adjusts when outdoor levels are high

Welcome to Your Command Center.

Unlike most smart thermostats, the iComfort S30® is more than a temperature regulator. It’s the command center for your entire system, with the incredible ability to monitor sensors in all of your equipment to react, diagnose, and troubleshoot. For added assurance, it keeps in constant contact with your installer to ensure proactive responses. No more downtime or guesswork. Only solutions that keep your system running as perfectly as it should be.

Of course, you can also use your iComfort S30 or the Lennox app to schedule and set away modes, adjust and maintain temperatures, ensure ideal humidity levels, optimize comfort in your home’s zones, and more.

Lennox iComfort Home Companion App: Available on the Apple App Store Lennox iComfort Home Companion App: Available on Google Play

5 Product Reviews: 5 Stars

“So quiet I can hardly tell it’s running...”

5 Product Reviews: 5 Stars

“Installed and all my allergy, breathing, cooling, heating, high bill problems went away.”

5 Product Reviews: 5 Stars

“More comfortable, lower humidity, my bill is 25% lower.”

5 Product Reviews: 5 Stars

“Our air quality and constant set temperature has been a dream.”

5 Product Reviews: 5 Stars

“Saving me $125 per month.”

5 Product Reviews: 5 Stars

“Better than any system I’ve had in 40 years.”

Lennox Product Showcase: Lennox Ultimate Comfort System Components

Rave Reviews

It’s clear that once homeowners experience perfect air, nothing else will do.

5 Product Reviews: 5 Stars

“The first time in 18 years my wife and I are both comfortable.”

5 Product Reviews: 5 Stars

“I am so happy that I purchased this system. No more cold blasts when the system kicks in and no more big temperature swings in my house.“

5 Product Reviews: 5 Stars

“The system is fantastic. Quiet, efficient, and simply awesome.”

Lennox is more than HVAC. It’s a promise.

We believe that the key to a healthy, comfortable home starts with the air with which we live and breathe. Our dedication to the pursuit of perfect air has been a driving force behind each and every innovation since 1895. We make the air cooler, warmer, dryer, cleaner and better with premium, award-winning systems that are exceptionally quiet and energy efficient. All brought to you by dealers armed with the expertise and resources to deliver complete home comfort.

Questions?

Get your Ultimate Comfort System answers right here. If you need more info about getting perfect air in your home or the ins and outs of HVAC, visit our FAQ page.

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VIEW ALL FAQS

Ready to Rethink Your Air?

Schedule an in-home consultation with a Lennox dealer and start on the path to perfect air.

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Hot & Cold Icons: Ultimate Comfort System produces consistently perfect air.

Hot here? Cold there?

Forget temperature swings and having the weather dictate humidity. This system is in constant communication with itself to deliver clean, perfect air and maintain your home’s ideal temperature and humidity level with pinpoint accuracy. Period.

And with iHarmony zoning, you can optimize and personalize your air throughout different sections of your home. That way, the only way your air feels is how you want it to feel.

Icon Representing Home Energy Bills: Ultimate Comfort System Maximizes Home Energy Efficiency

Overworked system running up your bills?

More efficient than anything the industry has ever seen, this system is in constant communication with itself to deliver nothing short of consistently perfect air.

Including a standard-setting furnace that boasts an efficiency rating up to 99%—that means it essentially converts every last bit of energy it uses into heating and cooling the home—and an air conditioner that achieves an efficiency rating of up to 26 SEER. Best of all, the energy saved is as healthy for your wallet as it is for the environment.

Sound Icon: Lennox Ultimate Comfort System Provides Incredibly Quiet Operations

Unbearably noisy?

Hear that? Of course, you didn’t. Even with all of its impressive power, this system has been engineered to run at variable capacity and variable speed to drastically minimize the sound of air kicking on or off inside the home.

Add in a special sound-dampening system to absorb outdoor noise and you can be assured it all operates at a noise level that is, quite simply, unheard of.

Dog & Pet Allergens: Sniffling and sneezing? Breathe easier with cleaner air.

Sniffling and sneezing?

From dust, pollen and dander to mold and germs to odors and chemical vapors, indoor air carries all sorts of unwanted, health-affecting contaminants.

Fortunately, the unparalleled PureAir™ S reduces and destroys them with thorough filtration and a powerful air purification technology. Not only will it remove 99.9% of allergens and 90% of virus-sized particles, it is the only single system to combat all three major types of indoor pollutants.