Q&A Stove Pipe pulls out of wall

Question:

The stove pipe thats goes from my stove to the wall keeps working its way out. After looking at the pipe, I decided to reinstall it. The pipe looks to short and the angle of the elbow is so sharp that only 1/2" to 3/4" will go into the wall. I'm looking at buying a 6" extension to add to the pipe and would like to make sure I'm not hurting the pull of the chimney. Is there a guide to how much if any angle is needed going from stove to wall?





Answer:

Your connector pipe should extend exactly the full length of your wall thimble. It should not protrude much into the flue itself, though. In this way, any creosote drip will remain inside your pipe and either flow back inside the pipe or drip into the chimney. What you've got now is dangerous! The draft can't be right and with a roaring fire or a chimney fire the pipe could vibrate and become dislodged at an inconvenient time, not contain the spark and smoke and a house fire result. Be careful!-
KarenDuke Chimney Services & Victorian Fireplace