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[mw10737]

Ok guys.. need your input or ideas.

Yesterday couldnt get stove over 150.. and it ended up being my 6"stove pipe had a hole the size of my finger left in  the very top.  It is at 17 ft high.  I have stove inside a building and needed that height to get over my peak.

 Anyways. It was only the top 1 inch of pipe, besides that the rest of the pipe was perfect clean..

So my question is have any of you guys had this same issue and if so what did you do besides clean it?

Was wondering is i added a 12" piece of single wall at the top?  Its double wall pipe, jsut thinking it might be cooling off and causing build up. 

I have no rain cap on on it so there is no restriction there.  But again it was ONLY the top inch...but it was quite  a sight seeing and 1/2" hole left in a 6" pipe..

Throw your ideas guys....

 

[yoderheating]

Ive seen a few furnaces do that when they have tall stacks on them. I always just grabbed a ladder a couple times a year and clean the stack.

[XJCraver]

I don't know how to tell you to fix it, but I'm glad you posted the question.  Gives me something else to check should I ever have trouble with mine!

[MattyNH]

Tall stack owner here .. I've had/ have that exact problem.... Furnace doesn't run like normal..  I'm 19ft up.. At the very top, it plugs up but the rest of the stack is clean as a whistle.. I clean my stack with bush and rod when I notice the smoke doesn't come out as normal.. I've cleaned it couple of times this yr so far ..really the only way to prevent it is up shorten the stack or clean it.. Single wall will plug up.. Been there done that .. You can buy the brush and fiberglass rods at Lowes.. Works slick