Hoping for some assistance on a recent inspection of my 1970's Majestic metal wood burning insert. This is the first time I've used this company and contacted him for a cleaning and inspection. He did the inspection but said no cleaning was necessary because there was no creosote. He indicated that we'd been burning fires too hot for the insert and damaged the flue. He recommended to not use it at all and it would be a carbon monoxide and potential fire hazard issue. Hoping some kind folks in the forum can take a look at the pictures and see if this is legit. Thank you!