Active Damper

I built the damper yesterday. After a lot of back and forth in my mind about how to do it, I settled on slicing the brick lengthwise and using a piece of angle iron. The pictures pretty much tell the story.









I am using Alsey Motar on the chimney to better seal it and hopeful promote a good draw. I will go another few layers with the high duty bricks and then change over to the medium duty to complete. I also intend to add at least one passive damper.