We are having serious problems with the burners on our Atwood range. One has already been replaced twice due to flame at the air combustion port that melted a plastic fitting. This would have caused a fire but thankfully was noticed right away. The burner flames burn yellow rather than blue. There is no air adjustment other than bending the metal burner bracket. Our dealer has been advised and indicates the matter will be handled (again) under warranty. My question is that new burners and adjustments have not worked. Therefore is another type or style of burner available rather than just repeating the exercise and the ongoing risk of a fire.