I hope this is the right place to post this. There are a few different threads about the monitor heaters as evryone else seems to have the same problems finding quality service. Our 441 first quit 2 days before Christmas. We took it to on service place that diagnosed the problem as a clogged line. The small brass line into the burning pot was sooted up and causing the stove to not get oil. In the process the brass fiting broke off and the burning pot had to be replaced. Since we brought the stove home and reconnected it, We at times were getting a kerosene smell that reminded me of when I was younger. Annoying but livable. Since then we are getting a strong exhaust smell in the house and I'm worried about carbon monoxide. We called a second company to come look at the stove. This serviceman replaced a filter on our external tank and cleaned some soot from inside the exhaust flue. It worked ok for about a day. I thought the carbon probably came from whatever problem was created by the first repair. Any ideas what to check next? If I put much more money into this unit it may be cheaper to buy a new unit. Please help!