I have had great succsess with this stove, It was time to replace the flame guide as it warped & cracked over time and was not properly"seatable." I ordered a replacement, went to pick it up after a week or so. I was immediatley annoyed that the replacement was dimensionally smaller than the original with different angles. It also had "Accentra" written on it. Vendor said that some of the flame guides are interchangeable between models. He said try it out and if it doesn't work they would contact Harman again. The the grooves did line up fairly well, hard to tell with the warpage of the original. I found that this fit like a glove much better than the original even when it was healthy. Operation is way cleaner than before, I don't know why it is different than the original but it is awesome, it seals all areas perfectly even though it looks different. Just thought I'd share my experiance.