Cracked Flue Thimble

[jonw440]

Hi First post.

I have a Harmon Pellet stove (P61A) in our living room.
I was getting it cleaned up for this years burning season and found a our 7"thimble has a crack all the way around it.
The crack is closer to the flue liner then the room.
I was thinking of cleaning the crack well and using chimney/furnace cement to fill the crack.
Then install a 6" stove pipe then cementing that into the thimble.
Then adding a reducer so the 3" stove pipe will connect to the stove.
Is this feasible?

 

[elkimmeg]

you may fill the crack with refactory cement. scrap the idea of using common black stove pipe instead use stainless steel or you can cement in a galvanizes thimble but the material has to be corrosian resistant and ss is better than galvanized stove pipe offers no corrosian resistance

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