18 years ago
and got some good advice from this group which I am following. In my 18"
diameter tank I've decided to go with 1" of Cera blanket as the outer layer
and then 3" of castable refractory up against that. I've seen other designs
on the web doing this and they also seem to stop about 2" from the top with
the fiber blanket and cover with the castable refractory. This in effect
buries the fiber blanket inside the refractory. Is there any problem with
this i.e air space in the blanket being trapped inside with no where to go?
I could leave the refractory cover off the blanket but then it seems like a
good idea to protect it from potential spills, etc. and it will look better
covered. What do you think?