Rigid or flex. 20' interior chimney with 8" square clay. thimble is accessible at the top of the clean out door.
chimney liners....
- Thread starter goofa
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mellow
Resident Stove Connoisseur
At 20 ft you should be ok running a flex 6" liner down that chimney, if you are going to do it right I would have it inspected to see if you have cracks in your terracotta, if you have cracks it means you need to use an insulated liner, which would put you down to a 5.5" insulated liner, not sure that would work good on the ol Fisher.
Ed Williams
New Member
- Sep 25, 2013
- 28
So a newer stove is capable of running on 5.5" flue? can i get away without the insulation being the chimney is located in the center of the house? probably only 8' of chimney that is exposed to the climate ... 4' in the attic and 4' above roof line.
mellow
Resident Stove Connoisseur
Interior or Exterior chimneys need to have the liner insulated IF you have ANY cracks in your terracotta, that is code.
Newer stoves with a 6" exhaust are capable of running on taller 5.5" liners, it is better to insulate the smaller liner for even better draft even if you don't have cracks and have an interior chimney.
Newer stoves with a 6" exhaust are capable of running on taller 5.5" liners, it is better to insulate the smaller liner for even better draft even if you don't have cracks and have an interior chimney.
This is getting just a little off topic, but I didn't think the terracotta had anything to do with the liner? Don't some people bust out the clay liner when installing flex liner?
mellow
Resident Stove Connoisseur
Terracotta stays most of the time unless you need to bust it out to run a larger liner that won't fit, usually a last resort deal for most people (not for money hungry sweeps).
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