It s important that your chimney service technician checks that the area that gets closed off has a lining.
Chimney thimble replacement.
Simpson duravent pelletvent 3pvl x6 double wall air insulated pellet stove chimney adapter stainless steel inner wall and galvalume outer wall requires a dvl durablack chimney adapter 6 inch 4 6 out of 5 stars 50.
A thimble should be cemented with high temperature cement into the masonry wall of the chimney and the stovepipe inserted into the thimble without cement for easy removal for cleaning and replacement.
The duraplus system from duravent is designed to the duraplus system from duravent is designed to stay cool on the outside provide a hot draft on the inside and boost stove efficiency offering a fire safe design that protects both the chimney and building.
Wood stoves use thimbles made of clay to handle high temperatures a the junction between the wood stove and the chimney.
If there s no lining due to the flue then a new one needs to be installed.
For ideal results you should fill the cracks from both the inside and outside of the thimble.
If the thimble is slightly cracked you should go ahead and repair it.
Installing a thimble in a chimney isn t difficult but the job needs to be approached carefully and systematically to avoid damage to the interior chimney flue.
180 degree heat shields are available for single wall pipe to reduce clearances to 6 for walls and 9 to the ceiling.
If you can in stall a clay thimble y.
Of duraplus chimney pipe sold separately and features the necessary.
How to replace the chimney thimble.
Single wall stove pipe going from the stove to the chimney must have a minimum of 18 clearance to combustibles.
This through the wall chimney stove vent kit supports up to 40 ft.
Things you ll need refractory mortar trowel putty knife hammer chisel.
The proper way to close off a thimble port is with brick and mortar to create a solid and safe enclosure.
If the stovepipe is connected to a masonry chimney it should extend through the near wall of a chimney to the inner face of the chimney liner but not beyond it.