We bought a Harman Tl 300 a couple weeks ago. The tech was out today because we can't get it to burn right. He measured draft with the bypass open (0.08) and closed (0.06). Harman says a minimum of 0.03 is required for this stove to work right. So, it's not the draft. The tech thinks it could be a air flow problem in the stove itself. Tonight, I tried to get some coals built up and after two hours, was unable to get the stove burning (unless I opened the ash door or front load door). The minute I closed everything up, with the air control wide open, the fire basically went out. Does anyone have any ideas on what the problem might be? Our wood is good (10-20% and Harman told us for this stove, 20% is actually better). Any thought are appreciated (as we sit here shivering in this really cold house).