I have an opportunity to pick up a '98 Hearthstone Heritage in excellent condition. I am not too familiar with this stove, but from the research I have done so far, this appears to be a very good stove. Does anyone have any experience with this stove? Is there anything I should look for on inspection before I buy? I plan to purchase the unit unless I find anything wrong. The previous owner says that he used it only occasionally and that he did perform the proper maintenance. I believe this is the slightly older 8020 Heritage which has an arched front door as opposed to the current rectangular door. I also believe the firebox is 2.0 cubic feet versus the 2.3 of the newer version. Regardless, this is a good sized stove that will take 21" logs.