Here is a strange one. I have an OK Joe Longhorn combo and did the initial seasoning today. Sprayed the interior with canola oil and brought the temp to 250 for about four hours using Kingsford "regular" brics. As the heat died down I opened the cook chamber and got the odor of ammonia. Not impressed! Did I do something wrong? Has anyone heard of this before? Do I need to re-season? Please help!