I know, I don't have a stove but a EPA woodfurnace. I am posting here because there aren't any fireboxes like mine on furnaces. Everytime I had gone on the roof, I noticed that I was seeing more creosote than I wanted to. Even then its nothing compared to the old furnace. After I would load my furnace, I would open the damper for a 1/2 hour before shutting down the damper. Normally the secondaries after shutting down are weak and it takes some time before things level out.
I have been reading about epa stoves being tested with 15' chimneys. I have a 32' chimney with a 5.5" rigid liner. Had a barometric damper, and eliminated it due to the cooler temps. My secondary ports are on the front of the furnace. No matter where I put my damper, the furnace seemed to burn somewhat fast. Overnight isn't a problem, but I suspected something wasn't right.
Tonight I decided to play with the air ports on the furnace. The fire was plenty hot and when I closed the damper there wasn't much secondary action. When I placed my hands on the front openings of the secondary ports, the baffle lit up like a christmas tree. It seems that there either is too much air entering the furnace due to a taller chimney, or its not preheating properly. I do have a damper in the flue which is putting my draft speeds where they are needed I knew that was okay. Now the front ports for the secondary air are 75% closed, and the furnace is burning like I have never seen before. Before I had my main damper adjusted so it was cracked open a hair to allow for the fire to burn hotter. Now its completely closed and burning better. I think too much secondary air was cooling things. Does this sound right? I also closed some of the zipper air off. Here is a link to the video.
http://www.youtube.com/watch?v=i-2MBZAMt1s
I have been reading about epa stoves being tested with 15' chimneys. I have a 32' chimney with a 5.5" rigid liner. Had a barometric damper, and eliminated it due to the cooler temps. My secondary ports are on the front of the furnace. No matter where I put my damper, the furnace seemed to burn somewhat fast. Overnight isn't a problem, but I suspected something wasn't right.
Tonight I decided to play with the air ports on the furnace. The fire was plenty hot and when I closed the damper there wasn't much secondary action. When I placed my hands on the front openings of the secondary ports, the baffle lit up like a christmas tree. It seems that there either is too much air entering the furnace due to a taller chimney, or its not preheating properly. I do have a damper in the flue which is putting my draft speeds where they are needed I knew that was okay. Now the front ports for the secondary air are 75% closed, and the furnace is burning like I have never seen before. Before I had my main damper adjusted so it was cracked open a hair to allow for the fire to burn hotter. Now its completely closed and burning better. I think too much secondary air was cooling things. Does this sound right? I also closed some of the zipper air off. Here is a link to the video.
http://www.youtube.com/watch?v=i-2MBZAMt1s
