ONYX™ Cooling

Customized Heating and Cooling in Knoxville, TN

The equipment you use to heat and cool your home should be durable enough to stand up to the toughest conditions. We have the right HVAC systems for you: our ONYX line of heating and cooling equipment. These systems are specially designed for the climate of East Tennessee. We named the line after onyx, one of the hardest natural crystal formations in the world—and you’ll discover why when you have our Russell & Abbott team install an ONYX system for your home comfort.

Contact us to find out more about our ONYX heating and cooling equipment!

Heat Pumps

Our ONYX heat pumps are available as both split systems and packaged systems. A split system heat pump is an excellent choice for both heating and cooling a home in our climate. They are excellent replacements for standard split system air conditioners and furnaces because they can operate as both heating and cooling systems. Packaged heat pumps operate the same, but all the components are housed in a single outdoor unit, an effective option for saving space.

For any questions, give us a call at 865-302-3221 or fill out our convenient online form and a member of our team will get back to you shortly!

Dual Fuel Systems

You may wish to stick with the combination of an air conditioning system and a gas furnace. If so, then the ONYX gas/electric split system is one of your best choices. We offer dual fuel systems in single or two-stage furnaces and single, two-stage, or variable speed multi-stage air conditioners. We also offer packaged units for our dual fuel system installations. As with all of our ONYX equipment, these dual fuel systems come with our special 10-10-10 Warranty. 

10-10-10 Warranty

We have the confidence in our ONYX heating and cooling equipment to back it up with one of the strongest guarantees you’ll find. It’s our "10-10-10 Warranty" which comes with the purchase of a new qualifying system. This means you get:

  • 10 Years All Parts—No exceptions!
  • 10 Years Labor
  • 10 Years Maintenance

What this all comes down to, and what it means to you, is that if your unit fails and it’s registered, it’s covered—no exceptions! We stand behind our equipment at Russell & Abbott and know you’ll receive fantastic service from your durable ONYX installation in Knoxville, TN and the surrounding areas.

Customer Satisfaction Is Our Goal! Here at Russell and Abbott, we take pride in serving our community. See what people have to say over on Google, or leave a review of your own!

You're in Trustworthy Paws

  • Onyx Hardcore Comfort You Can Feel
  • CCM Comfort Club Worry-Free Living
  • Certified Aeroseal Dealer
  • Tennessee Drug Free Workplace
  • Energy Star Partner
  • 2018 Reader's Choice
  • AHRI
  • 2020 Reader's Choice

Ready to Get Started?

Contact us using the form below or give us a call at (865) 302-3221.
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Our Customers Love Us

Read Reviews from Your Friends and Neighbors
  • “I was so impressed by this company and their professionalism. The communication was amazing and each person I spoke with was friendly and willing to help.”

    - Whitney H.
  • “I highly recommend Russell and Abbott to anyone in need of maintenance, repair, or replacement of their current HVAC system. They actually fulfill their warranty promises, making them a 21st-century company with old-school quality!”

    - William K.
  • “I highly recommend Russell & Abbot. I will have them come back regularly for maintenance to avoid future problems. I am so pleased with their service!”

    - Patricia A.
  • “The staff is always very friendly, professional and on time. I have the Onyx system and have a 10-year warranty, so I am never charged for anything that they do. I cannot recommend this company enough!”

    - Angel J.