I followed instructions per the 5510 King Review...thank you, thank you. I was beginning to almost scrap this stove but I came across that thread. Hands down the biggest thing I did that helped me the most was seal the bottom ash slide doors. When I did that it was like a new stove. I immediately felt the difference when I fired it back up. I have a 2009 model and it was used very little from the guy I got it from who bought it brand new. It heats my 36x24 shop with 10 ft ceilings no problem. I'm running it on 1 with room fan on Auto and draft fan on 2. The temp is is 20's 30' outside and shop is 65....too hot for ashop really. Just thought I'd share because there seems to be a ton of these stoves still around. I see them on FB market place every day.