Hi everyone. I recently sold my house that had a Harman XXV (great stove) and we finally bought our second home and decided to go with a Mt. Vernon AE insert. The inlaws and my uncle had one, so figured why not. My initial impression is that it is much quieter than the Harman XXV and throws good heat. Also, while I like the auto clean feature of the Mt Vernon (saves me from scraping clinkers), having the stove shut down in the middle of a heating cycle to clean itself just seems like an odd design to me. By the time it is done and fired back up, the house is about 2 degrees cooler. I think the XXV was a lot less fussy. Anyway, we ended up building a fireplace for our new home and I figured i'd share.