House insulation is for houses… Oven insulation is for ovens.
The oven insulation we sell is manufactured by Harbison Walker and HeatStop… the big boys of the Ceramic Fiber Blanket & Castable Refractory industry!
While there are several blends and thicknesses of CFB (1" or 2"… 4lb, 6lb, 8lb…), we only stock and sell the 1" x 24" x 25’ - 6lb Inswool by Harbison Walker. This blend is super-thick and provides the most amount of insulation for the least amount of $$$.
http://store.brickwoodovens.com/6lb-ceramic-fiber-blanket-for-wood-fired-pizza-ovens/