I was looking at a house with a friend so he could get a second oppinion on some issues he found. While looking around I saw a woodstove in the livingroom. I took a closer look and noticed it was a Tempwood stove. Before I go any further I want to say I don't know much about woodstove installations but I saw that the stove was in front of the fireplace on the fireplace hearth and covering the opening of the fireplace( 25x36) was a piece of sheet metal with a 6" opening with the 6" stovepipe inserted through it and a 90 pointing up. I asked the homeowner if this installation was up to code. He said he has burned wood with this set up for 20 years and never had a problem. He said he cleans the chimney twice a year. Does this set up sound ok. Like I said I don't know much about woodstove set ups. Any advice or opinions would be very helpful.