At DeHart Air Conditioning, we know that only the highest-quality products paired with the best installation and maintenance work effectively to keep you comfortable. That’s why we install the best-in-class systems from brands like Lennox, Mitsubishi, and ClimateMaster.

Lennox HVAC Systems & Products

Lennox manufactures a wide range of high-quality HVAC systems to help make your home more comfortable while also being energy efficient, so you can experience greater energy savings. At DeHart, we’ve been a Lennox Premier Dealer for years and are familiar with all models, so you can be sure we’ll recommend and install the right option for your home. The systems our expert, factory-trained technicians install include:

  • Lennox air conditioners, furnaces, and heat pumps

  • Lennox air handlers and packaged units

  • Lennox indoor air quality systems, including air cleaners, air purifiers, home air filters, and more

  • Lennox comfort controls like smart thermostats and other control options

Mitsubishi Mini-Split Heat Pumps & VRF Systems

Mitsubishi Electric makes some of the most popular and energy efficient ductless mini-split heat pump systems and VRFs on the market. For homeowners and commercial property owners who want to utilize an all-electric system for both heating and air conditioning, we can install a Mitsubishi HVAC system. These high-performance units can provide optimal comfort year-round while taking advantage of excellent energy efficiency for low energy bills.

ClimateMaster Geothermal Heat Pumps

Geothermal heat pumps are an excellent heating and air conditioning option here in the Duncan and Chickasha, OK area. If you want to take advantage of renewable geothermal energy below your property instead of relying on fossil fuels, we can install a ClimateMaster geothermal system for you. The best way to see exactly just how much you can save with a geothermal heat pump is to try the ClimateMaster cost savings calculator.

Get the Best HVAC Systems Installed by DeHart Air Conditioning

Our team consists of comfort experts. We have all the knowledge required to help you decide which HVAC system is right for your needs, so that you can keep your home or commercial property in the greater Chickasha and Duncan, OK area comfortable.

What HVAC product is right for you? We can help you find out. Contact us or call 405-224-0184 today.

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What our customers are saying

We wanted to say 'thank you' for your great service! The new geothermal unit is working well and in fact is working better than our original ever did. We cannot express our appreciation enough. Thank you also for the extra time spent in completing paperwork for our OEC Rebate.

David and Kami Ratcliff

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