Looks like My High valley 2500 is wounded. Found that the catalyst frame is warped to death and 2 of the welds broke. Worse is there are cracks in the baffle at all of the combustor passage corners. These are all internal passages and only isolate fire box exhaust from the combustor area. I'm guessing a leak would just result in higher emissions and less catalysts efficiency. Looking for advice if I should strop drill/weld, simply stop drill and leave the cracks or retire the stove. Also looking at making a new catalyst frame from 330 grade steel rather than the original low carbon stuff. 330 can withstand 1800ºF degree cycles and 2000ºF continuous VS the original material going soft at 1600 and full meltdown at 1800.