I witnessed the installer unintentionally crimp the 6" flexible flue liner with a crow bar during a a difficult installation...(trying to get the liner aligned with the top of the stove.) I went outside to do something and when I came back in, it had been wrapped in what looked like a thick aluminum foil, and he considered the installation finished. When he conducted the test fire, it dumped smoke heavily into the living room out from the top of the stove when the door was opened. Tempers flared to make a long story short. He came back a week later to work on it cold...and it still leaks a lot of smoke and barely has any draw at all. All he did was tug at the liner from the top of the chimney (it's a full liner) and do a match test...small test fire. He then said it's the stove and wants to give me a refund, and out of the contract altogether, but I want to know if anyone knows of a Montpelier Wood Insert that wouldn't draw properly and been unable to ever get working properly? I had a cultured stone fireplace built to fit the Montpelier so I'd have to hire a mason again to add or cut out the cultured stone to make another insert fit, obviously from a different contractor Any thoughts would be appreciated. If I could find a way to talk to Vermont Castings tech support that would be great too, but I can't find a way to contact them, if they even exist. Thank you..