facebook
Lennox Heating and Cooling Denver Littleton Highlands Ranch Colorado

Lennox Heating & Cooling HVAC Company Colorado

Welcome to ROX Heating & Air, the top-rated Lennox dealer in Colorado! We are thrilled to offer you a wide range of heating and cooling solutions that are both energy-efficient and reliable. At ROX, we know that your comfort is a top priority, which is why we offer only the best Lennox products to keep your home at the perfect temperature, no matter the season.

As a homeowner, we understand that choosing the right HVAC system for your home can be a daunting task. That’s why we’re here to help. Our team of experts will work closely with you to determine your specific needs and recommend the perfect Lennox product to suit your lifestyle, budget, and home.

With our selection of top-of-the-line Lennox air conditioners, furnaces, and heat pumps, you can trust that you’re getting the highest quality HVAC system for your home. Lennox products are known for their energy efficiency, reliability, and advanced technologies, which means you can enjoy a comfortable home while saving money on your energy bills.

At ROX Heating & Air, we’re not just about selling products – we’re about building lasting relationships with our customers. Our team of certified technicians will install your Lennox system with care, and our ongoing maintenance and repair services will ensure that your system continues to perform at its best for years to come.

Lennox has a full line of heat pumps, air conditioners, and furnaces for any budget and home comfort needs:

Lennox Air Conditioners

Lennox SL28XCV Air Conditioner

  • The Most Efficient Air Conditioner on the Market
  • Features a SEER Rating of Up to 28
  • Precise Comfort® Technology
  • SilentComfort™ Technology
  • Energy Star® Certified

Lennox XC25 Air Conditioner

  • One of the Quietest Air Conditioners Available
  • Features a SEER Rating of Up to 26
  • SunSource® Solar-Ready Option
  • iComfort®-Enabled Technology
  • Energy Star® Certified

Lennox EL23XCV Air Conditioner

  • High-Efficiency Air Conditioner
  • Features a SEER Rating of Up to 23
  • SilentComfort™ Technology
  • iComfort®-Enabled Technology
  • Energy Star® Certified

Lennox XC21 Air Conditioner

  • High-Efficiency Air Conditioner
  • Features a SEER Rating of Up to 21
  • SilentComfort™ Technology
  • iComfort®-Enabled Technology
  • Energy Star® Certified

Lennox EL18XCV Air Conditioner

  • High-Efficiency Air Conditioner
  • Features a SEER Rating of Up to 18
  • SilentComfort™ Technology
  • iComfort®-Enabled Technology
  • Energy Star® Certified

Lennox XC16 Air Conditioner

  • Efficient and Reliable Air Conditioner
  • Features a SEER Rating of Up to 17
  • SilentComfort™ Technology
  • Energy Star® Certified

Lennox 14ACX Air Conditioner

  • Affordable Air Conditioner Option
  • Features a SEER Rating of Up to 16
  • Compact Design
  • Energy Star® Certified

Lennox Furnaces

Lennox SLP99V Furnace

  • The Most Efficient and Precise Gas Furnace Available
  • Features a Modulating Heat Output
  • Energy Star® Certified
  • iComfort®-Enabled Technology
  • SilentComfort™ Technology

Lennox SL280V Furnace

  • High-Efficiency Gas Furnace
  • Features a Variable-Speed Motor
  • Energy Star® Certified
  • SilentComfort™ Technology

Lennox EL296V Furnace

  • Efficient and Reliable Gas Furnace
  • Features a Two-Stage Gas Valve
  • Energy Star® Certified
  • SilentComfort™ Technology

Lennox EL280E Furnace

  • High-Efficiency Gas Furnace
  • Features a Power Saver™ Constant Torque Motor
  • Energy Star® Certified
  • SilentComfort™ Technology

Lennox EL196E Furnace

  • Efficient and Reliable Gas Furnace
  • Features a Power Saver™ Constant Torque Motor
  • Energy Star® Certified
  • SilentComfort™ Technology

Lennox ML180V Furnace

  • Affordable High-Efficiency Gas Furnace Option
  • Features a Two-Stage Gas Valve
  • Energy Star® Certified
  • Duralok Plus® Heat Exchanger

Lennox ML180E Furnace

  • Affordable Gas Furnace Option
  • Features a Power Saver™ Constant Torque Motor
  • Energy Star® Certified
  • Duralok Plus® Heat Exchanger

Lennox Heat Pumps

Lennox SL25XPV Heat Pump

  • The Most Efficient Heat Pump on the Market
  • Features a SEER Rating of Up to 23.5 and an HSPF Rating of Up to 10.2
  • Precise Comfort® Technology
  • SilentComfort™ Technology
  • SunSource® Solar-Ready Option

Lennox EL22XPV Heat Pump

  • High-Efficiency Heat Pump
  • Features a SEER Rating of Up to 22 and an HSPF Rating of Up to 10.

Lennox XP20 Heat Pump

  • Efficient and Reliable Heat Pump
  • Features a SEER Rating of Up to 20 and an HSPF Rating of Up to 10
  • Energy Star® Certified
  • SilentComfort™ Technology

Lennox EL18XPV Heat Pump

  • High-Efficiency Heat Pump
  • Features a SEER Rating of Up to 18.5 and an HSPF Rating of Up to 10.2
  • Energy Star® Certified
  • SunSource® Solar-Ready Option

Lennox EL17XP1 Heat Pump

  • Efficient and Reliable Heat Pump
  • Features a SEER Rating of Up to 17 and an HSPF Rating of Up to 9.5
  • Energy Star® Certified
  • Compact Design

Lennox 16HPX Heat Pump

  • Affordable Heat Pump Option
  • Features a SEER Rating of Up to 17.5 and an HSPF Rating of Up to 9.5
  • Energy Star® Certified
  • Durable Construction

At ROX Heating & Air, we understand that choosing the right heating and cooling solution for your home can be a daunting task. That’s why we’re here to help. We are Colorado’s Best Lennox Dealer Our team of experts can help you select the perfect Lennox product for your home, ensuring that you stay comfortable and energy-efficient all year long.

When you choose a Lennox product, you’re choosing a high-quality, reliable, and energy-efficient solution that will keep your home comfortable and save you money on your energy bills. So why wait any longer to upgrade your home’s HVAC system? Contact us today to learn more about our Lennox products and how we can help you stay comfortable and save money on your energy bills.

Home » ROX Heating & Air HVAC Blog » Lennox Heating & Cooling HVAC Company Colorado
 

MESSAGE US

3 + 15 =

18 Month 0% Interest Financing on New Lennox HVAC Systems

18 Month 0% Interest Financing on New Lennox HVAC Systems

Is your HVAC system old and inefficient? Now is the perfect opportunity to enhance your home comfort with state-of-the-art Lennox HVAC systems! At ROX Heating & Air, we're offering an attractive 18-month 0% interest financing option exclusively on a new Qualifying...

read more

Priority Comfort Club

Become a member and enjoy the benefits of regular HVAC maintenance, including exclusive discounts, priority service scheduling, annual HVAC Maintenance, and peace of mind.  Colorado's Best HVAC Maintenance Membership Program.

Highlands Ranch HVAC Company

Lennox HVAC Products

Schedule A Free Estimate

ROX Heating & Air are Colorado's Premier HVAC Company.  We are committed to providing excellant customer service, high quality work, and the installation of premium HVAC products.  Contact us today to schedule a service call or free estimate on a new HVAC System.

Posted on Google Google
Geniene Hillier Moore profile picture
Geniene Hillier Moore
6 October 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
Great service! Highly recommend
Posted on Google Google
Jay Seifert profile picture
Jay Seifert
4 October 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
I've been a customer of Rox air for a few years. Both for air and heating but also water heater. I am on there maintenance plan and they come out twice a year and do a thorough job checking out the systems. They spend a lot of time to make sure everything is working right for the next season. I would recommend them to anyone.
Posted on Google Google
Debbie Holtzman profile picture
Debbie Holtzman
2 October 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
Dexter was prompt and very cordial. I felt very comfortable with him. He is a fast worker with extensive knowledge of my hearing system. In my opinion, Dexter is an excellent representative for Rox Heating & Air.
Posted on Google Google
Connelly Michael profile picture
Connelly Michael
2 October 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
Roger did an excellent job
Posted on Google Google
Ogtay Adigozalov profile picture
Ogtay Adigozalov
2 October 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
Rox Heating replaced my almost 30 year old HVAC with a new heat pump recently. The experience was extremely positive from the very beginning till the job got completed. Scheduling process was hustle free, techs arrived right on time and gave us a heads up call 30 minutes prior to their arrival. They kept us informed on the installation progress, which was great since we were had activities planned that day and had to adjust our schedule. ROX techs gave us a detailed walkthrough on how to use the new heat pump. We really appreciated follow up calls from ROX’s office to make sure that everything was done to our satisfaction. I would definitely recommend ROX Heating and Air to anyone who needs help with any type of HVAC work.

Lennox HVAC Company

Why Lennox Heat Pumps Outperform Other Brands

Why Lennox Heat Pumps Outperform Other Brands

When choosing a heat pump, you want a system that delivers reliable comfort, energy efficiency, and long-lasting performance. Lennox heat pumps consistently outperform other brands for these reasons and more. Lennox has built a reputation for innovation, durability,...

Highlands Ranch:Upgrade to a Lennox Heat Pump Now

Highlands Ranch:Upgrade to a Lennox Heat Pump Now

As energy costs rise and environmental concerns grow, homeowners in Highlands Ranch are looking for smarter ways to heat and cool their homes. One of the best upgrades you can make today is installing a heat pump, and there's no better time to do it than right now....

Priority Comfort Club

Become a member and enjoy the benefits of regular HVAC maintenance, including exclusive discounts, priority service scheduling, annual HVAC Maintenance, and peace of mind.  Colorado's Best HVAC Maintenance Membership Program.