HM&FC 1"x 24"x 31" Ceramic Fiber Insulation Blanket 2400F for QuadraFire Wood Stoves, & More. 2300F (1260C) Continuous Use Temperature Non-reactive with moisture (unlike mineral wool and vermiculite) Excellent high temperature insulator Size 31" X 24" X 1" with a knife included Perfect for home foundries, forges, kilns, blacksmiths, knife making, glass bead making and many more