Today I stopped by the local stove dealer, and bought 2 new bricks for my Osburn. The originals had gotten these odd klinker type things stuck to the brick, then the brick basically just fell apart. The original brick looked a lot like a cinder block type material, and the new looked more like a concrete paver with a little yellow color. The new brick was clearly a much denser material. Is this a problem? Will the new brick perform o.k.? Gut feel tells me that the new brick is a better quality brick, since it's a LOT heavier. Probably twice as heavy. Bricks were 5 bucks a peice Is this possibly why an Osburn is cheaper than other stoves? I'm thinking of replacing all the bricks in the stove now, anyone think I should? I feel a picture coming on! will post later if I get the chance.