Creosote in back of insulation

[Ctwoodtick]

i have an insulated liner in masonry chimney. Chimney was cleaned before pro install of insert. I don’t believe every bit of my chimney is viewable by naked eye. Odd question, but in the event that there was the odd bit of buildup left over by mistake on masonry on back of liner, how much risk is actually posed with insulated liner?

 

[kennyp2339]

Not much at all, insulated liner will protect any "remnants" stuck to the masonry

 

[bholler]

Not much at all, insulated liner will protect any "remnants" stuck to the masonry

Well no not nessecarily. The chimney still needs cleaned properly

 

[Ctwoodtick]

Well no not nessecarily. The chimney still needs cleaned properly

Have you seen or heard of situations that heat transfer through insulated liner led to remnant creosote igniting? Not questioning your response, just curious.

 

[bholler]

Have you seen or heard of situations that heat transfer through insulated liner led to remnant creosote igniting? Not questioning your response, just curious.

Yes but it is very rare. Most of the instances where left over creosote ignites it is from un insulated liners. But there is still a risk. But the only way you would reach the temps required would be with an intense chimney fire in the new liner.