I have some large bricks around my house and the property, Is there a reason I should put them in the over as a pizza stone? I would acid wash it and cover in foil. Also Now I am thinking since it fits the MES30 perfectly wouldn't it make a great heat sink. Course it would have to go on the floor in the drip pan I guess. I have no idea what they are/were used for other than possibly the fireplaces. I know, sorta stupid to have fireplaces in Louisiana, A/C makes better sense! BUT my house is like 150 years old so it has fireplaces.