I had a Mt. Vernon installed last week. An old Marco manufactured woodburner insert was removed and a Mt. Vernon insert was installed to replace. While the stone tear out and new stonework turned out flawless the stove doesn't work. (More on that) The old inner liner was removed and the new the exhaust sleeve (pardon my inexperience with terminology) was run up inside the existing sleeve. I spent quite a bit of money for this unit/install. We had strong winds the other night and it felt drafty in the room. When I inspected behind the insert yesterday I noticed I could see daylight up inside the liner with the new outlet up inside. I assume that no block off plate or something was not installed. I can feel the warm air from my living room rushing past the stove and up the old liner. I can only assume this shouldn't be, please confirm. The installer was a mason (did nice looking stone work) but seemed to know nothing about how to turn on or troubleshoot the stove. Onto the non working part. I basically have an out of box failure as it lights up on the initial startup sequence but fails to go to the next phase. It will burn up the initial pellet drop for the startup and the fire goes out. The igniter stays lit and it never drops any more pellets. I got little help from the dealer when we called their tech support guy together. He mentioned on the phone that it must be a control board and that he would order one, but no input on how to do actual troubleshooting and wouldn't come out. The stove manufacture date was Aug 2007, but the controller board manufacture date is March 2007. Any input here is appreciated. I suspect a bad thermocouple ( I checked for thermocouple contact with ceramic cover and exposure to flame) or a bad board. I fear that we will order a board, just to wait for it to come and it may be something else. Whereas if proper (hands on) troubleshooting were done we could have the solution much quicker than throwing parts at it and hoping something fixes it, which takes more time and hassle in the end. By the way, the Mt. Vernon looks great with the new stonework. But so far an expensive piece of furniture.