If anyone needs fire brick. Menards has it for $11.89 a 6pk plus they have the 11% rebate on everything right now.
http://www.menards.com/main/heating...gelzang-6-pack-firebrick/p-1392272-c-6881.htm
http://www.menards.com/main/heating...gelzang-6-pack-firebrick/p-1392272-c-6881.htm