5.5" x 27' liner with Buck Model 81?

[DeadTreeBurner]

Anybody running, or tried to run a Buck Model 81 with a 5.5" liner over 25' long? The manual states not to go under 6", but I very well could run into issues if I tried running a 6", especially if I use insulation, even 1/4", which I'd like to use. My flue is 6.5" x 11" and I can see in places where the mortar has squeezed out a little when the flue was stacked. Not to mention the top flue section is malformed, the lower section measures around 6.25.
I will be switching over to a pellet stove soon, but I'd like the option of putting the buck back into place should I ever run into supply issues w/ pellets.

 

[begreen]

Another option would be to use a 6" insulated oval liner.

 

[bholler]

Anybody running, or tried to run a Buck Model 81 with a 5.5" liner over 25' long? The manual states not to go under 6", but I very well could run into issues if I tried running a 6", especially if I use insulation, even 1/4", which I'd like to use. My flue is 6.5" x 11" and I can see in places where the mortar has squeezed out a little when the flue was stacked. Not to mention the top flue section is malformed, the lower section measures around 6.25.
I will be switching over to a pellet stove soon, but I'd like the option of putting the buck back into place should I ever run into supply issues w/ pellets.

5.5 insulated won't fit in there either. Use oval.

 

[DeadTreeBurner]

Thanks all. I'll have to check that out, hopefully they aren't much more $$. I've not really seen them in my initial browsing.

 

[bholler]

Thanks all. I'll have to check that out, hopefully they aren't much more $$. I've not really seen them in my initial browsing.

They are more but the only other option is removing the old clay liners which is even more