When opening the cabinet doors where the Walas is I can see smoke coming in from the flange attached to the exhaust piping. I remember hearing that some sealant was put on this to keep the exhaust coming back in. It's possible that is burning off...The jury is still out. I'm thinking we're going to work it again this weekend and see what we see. I am really looking forward to another lazy Sunday. We're going to be visiting again the Columbia outside of St Helens or Scappoose. Some fishing and the best of company - my better half. What more could a guy ask for? :smile