1990 Treemont/Vansco WSI brick replacement - Insulation?

[GeriatricGinger]

Hi. As the title states, I'm replacing some cracked/broken firebrick inside my Treemont TAC 260 WSI. Under the brick (on the bottom) is a very thin aluminum-backed insulation (I assume to protect the fans, etc.) that is in dire need of replacing, as well..

Anyone know where or what I can replace this with? I don't need much, maybe 3 strips of 6" x 24" and it's approx. 1/8-3/16" thick AT MOST...

Thank you.

 

[GeriatricGinger]

Anyone ever seen this insulation inside a wood stove? I don't even know where to start to find a replacement for it.

 

[begreen]

Not sure what the material is, but maybe some heat shielding from the automotive or ceramic kiln industry would work? Or just use a thin layer of micore, kaowool or fiberfrax insulation.