I have a fast question. I have reed all the stickys.What I am Confused on is the oak system the same as telling the installers that I want a air Intake?or are they 2 different systems? My reason for asking is the ef3 I am trading In Has major airflow problems. It has no air Intake attached and with the damper wide open still have a tall lazy orange flame and smokes up the glass to black. Don't want any problems with my new haram.thanx all