At DeHart Air Conditioning, we strive to help homeowners near Chickasha and Duncan, Oklahoma, save on their HVAC upgrades. Because we work primarily with high-quality heating and cooling equipment from Lennox, we are able to offer our customers special discounts directly from Lennox.

In addition to our regular promotions, we also work with local utility companies to help our customers take advantage of special rebates when they upgrade their HVAC equipment or install a geothermal system.

If you want to save on your next heating replacement, AC upgrade, or ductless mini split installation, you’ve come to the right place. Check this page regularly for a look at our latest promotions!

Ready to save on your next heating or air conditioning upgrade? Call 405-224-0184 or contact us to get started!

lennox systems

Upgrade your home heating and cooling system for less this fall, with these rebates and financing options from Lennox. Schedule your upgrade before November 22, 2019 to combine the durable and efficient technology of Lennox with the expert installation of DeHart Heating and AC here in Duncan and Chicaksha, OK.

Find out how DeHart can help you save some of your hard-earned cash. 

Ask us about our current promotions!


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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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