Ok liner install is done (well actually its been a week or two ago). I've sealed up the old cleanout below. I sealed around the thimble by packing some rockwool around it (6" pipe in 8" thimble). The top plate remains and I'm not sure how to approach it.
The liner passes up through a short stub attached to the top plate, about an inch bigger around. So there is a gap between the two. However since the liner is held in place by a clamp tethered to one side this gap isnt equal all the way around, its pretty much touching the inner wall near the clamp.
And the joint between the stub and top plate isnt sealed either. On my other chimney with a duraliner there is a skirt of sorts over this but I guess this cheaper flex liner kit isnt that fancy. Can I use silicone? I feared it would get to hot right next to the liner but I went up there yesterday when the stove was ~500 and it was only showing a surface temp of 100.
Its small but then there is the hole that the clamp passes through, not sure if its even possible to seal that one.
The liner passes up through a short stub attached to the top plate, about an inch bigger around. So there is a gap between the two. However since the liner is held in place by a clamp tethered to one side this gap isnt equal all the way around, its pretty much touching the inner wall near the clamp.
And the joint between the stub and top plate isnt sealed either. On my other chimney with a duraliner there is a skirt of sorts over this but I guess this cheaper flex liner kit isnt that fancy. Can I use silicone? I feared it would get to hot right next to the liner but I went up there yesterday when the stove was ~500 and it was only showing a surface temp of 100.
Its small but then there is the hole that the clamp passes through, not sure if its even possible to seal that one.