Hi, We've been told this is the place to solve fireplace issues. We purchased a Harmon Oakwood several years ago and from the get-go we have been experiencing whuffing problems. We actually did not know what was happening until it got really bad, as in, explosions that literally lifted the cast iron plate of of the stove top. I have document several youtube videos and I'll post the links here. I've had the manufacturer involved, the local dealer involved and several solutions offered, including a spinner cap to improve draft. I've provided comments to each video and for people who have posted comments or questions to the videos, I have replied to those. Settle in with a cup of coffee. Here is our story. [Edit: This first video will give you an overall view of the problem and a visual of the setup of the stove both indoors and outdoors. Trying to view the video text may be difficult to read for some in this forum format, myself included, so you can also view the video at YT for larger screen size.] Dec 18 2011 Dec 22 2011 Dec 23 2011 (nothing too exciting here except seeing some whuffing going on in a darked room). Dec 23 2011 Mar 03 2012 (0:16 shows a good example of whuffing, then watch again at 0:53) Mar 04 2012 Feb 04, 2013 No video needed, as the problem continues. As I said to Joe DelaTerre this morning who commented about coming over the Hearth.com: "No we have not yet figured out the problem. For the winter 2012/2013 the stove still whuffs. Someone said a while back we have to keep the chimney hot. (Which I already knew about.) By that, they mean the temp gauge installed in the chimney should be in the middle of the grey zone. Well, in order to do that, the damper has to be open, and the draft has to be 1/2 to full open." That's the only way we can burn without whuffing. Problem is the stove "eats" the wood (as would be expected). I'm currently burning white/yellow birch and maple that's been seasoned for 2 years still outdoors in a covered lean-to. One of the videos shows those. Looking forward to comments, solutions.