Think I might need a dreaded damper in my pipe,,, ugggg! Pipe temps have been for the most part matching the stove temps. I'm not even straight up, a 90 off the stove, straight up 30 in, a 90 and 12 inches to the wall thimble then into a lined and insulated masonry chimney, 22 ft tall. I guess I should be thankful for too much draft . I had the draft open about .25, that ran the stove at 400 with a 300 pipe temp, 2 hours later the pipe was down to 200 with the stove dropping off. Stove was going out. Has anyone else installed a damper? I just feel a lot of my heat is going up the chimney. Also I see ghost flames inside my screen right before the cat, is that normal or maybe from such a strong draft ? This is at a setting of .5. Talked to Ron at Woodstock today as well, he thought maybe a damper as well. The pipe temp certainly doesn't lower once I close the bypass.