I am currently in the market for a pellet stove and have found a used 2003 Quadrafire Mt. Vernon for $1200. I have read some reviews on the Mt. Vernon AE but have been unable to find much information on the earlier Mt. Vernon models. Does anybody have information regarding the "pre AE" Mt. Vernon. Also is this too much for a used pellet stove. Thank you in advance for any help you may provide.