I am having a problem.. with lowest setting on the temperature dial... I am getting 375F reading .. I want to get it to 250F so I can smoke some ribs... I currently have the damper almost closed and I am still maintaining 357F... what can I do to lower the temp ? for smoking some baby back rib ? any ideas ? or just cook them at 375F for 1 hour ? I have few chunks of pecan wood... not sure if it was the wood... I will just dump one piece in next time.