... to be used for lining a masonry chimney (13" x 17" flue size) which is in very good condition.
The manufacturer claims their Simpson DuraLiner (rigid 6”) is "factory insulated".
I am about to use 10' of this thing up in the chimney, plus another 5' of their flex liner at the bottom to pass through the damper opening and connect to wood-burning insert.
The chimney is external, and that is why I'd prefer insulated liner. Can I count on this "factory insulation" or I would have to use a separate insulation sleeve (or wrap-around blanket)?
Looking at their spec sheets, ID, OD, and wall thickness listed, it is obvious that there's about 1/4" spare space between the inner and outer shells of the liner sections, and that is where I presume the insulation is. The question then would be, is 1/4 thick insulation sufficient?
On the other hand, these folks appear to know their business, and the fact that they only suggest using their insulation sleeves over flex liner sections, tells me they feel pretty confident the rigid sections do not need extra insulation.
Any ideas/knowledge/experience?
The manufacturer claims their Simpson DuraLiner (rigid 6”) is "factory insulated".
I am about to use 10' of this thing up in the chimney, plus another 5' of their flex liner at the bottom to pass through the damper opening and connect to wood-burning insert.
The chimney is external, and that is why I'd prefer insulated liner. Can I count on this "factory insulation" or I would have to use a separate insulation sleeve (or wrap-around blanket)?
Looking at their spec sheets, ID, OD, and wall thickness listed, it is obvious that there's about 1/4" spare space between the inner and outer shells of the liner sections, and that is where I presume the insulation is. The question then would be, is 1/4 thick insulation sufficient?
On the other hand, these folks appear to know their business, and the fact that they only suggest using their insulation sleeves over flex liner sections, tells me they feel pretty confident the rigid sections do not need extra insulation.
Any ideas/knowledge/experience?
