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United States securities and exchange commission logo





                     October 3, 2022

       Rebecca Thompson
       Chief Financial Officer
       AAON, Inc.
       2425 South Yukon Ave.
       Tulsa, OK 74107

                                                        Re: AAON, Inc.
                                                            Form 10-K for the
year ended December 31, 2021
                                                            Filed February 28,
2022
                                                            File No. 000-18953

       Dear Rebecca Thompson:

              We have completed our review of your filing. We remind you that
the company and its
       management are responsible for the accuracy and adequacy of their
disclosures, notwithstanding
       any review, comments, action or absence of action by the staff.




                     Sincerely,


                     Division of Corporation Finance

                     Office of Energy & Transportation
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