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 promotions, we 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. Learn more about our current offers below and through our Financing & Rebates page!

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!

Current 2020 Promotions

ENERGY STAR® $500 HVAC Bonus Rebate
PSO is offering a $500 HVAC bonus for a limited time only!

Take advantage of a limited-time promotion! Check out the details below for information on qualifying equipment and guidelines.

  • All Single Upgrade and Multiple Upgrades qualifying HVAC systems sold and installed for a limited time only are eligible for a $500 bonus rebate.

  • The $500 bonus rebate will be applied to the homeowner invoice as part of their total PSO Home rebate.

  • HVAC systems must be ENERGY STAR certified, AHRI rated, and meet program efficiency guidelines to qualify. Please download and review the Home Rebate Guidelines below for details on SEER and EER ratings for qualifying ENERGY STAR certified equipment.

  • All HVAC systems must be ENERGY STAR certified and documented with an AHRI certificate.

Contact our office for guidelines and qualifications or read more on the PSO Rebates here.

Special financing promotions

*Promotional Financing options (upon Approval from Service financing)

These are promotion financing offers they cannot be used with Lennox rebates

  • 3 Month no interest no payment rolled into 6.99% APR for 120 months
  • 6 month no interest no payment rolled into 9.99% APR for 120 month

Financing options (upon Approval from Service financing)

These are promotion financing offers that can be used with Lennox rebates

  • 9.99% APR for 120 Months.

Current Lennox Promotions

2020 Lennox Fall Promo is here!

Schedule your home comfort upgrade with DeHart before November 27, 2020 and rake in the savings.

Ready to save some of your hard-earned cash? 

Ask us about our current promos!


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What our customers are saying

I would like to commend DeHart Air Conditioning and two of your employees, Stacy and Akeem. When we moved into our house two years ago we had DeHart clean the ducts.

Bob Evans

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