I am new to the wood burning community and recently acquired a 2010 Lopi Leyden for free on Craigslist. To make a long story short, I just realized the front half of the combustion block is completely in chunks and falling out into the fire box. (I removed the brick to move the stove) Since I'm only heating a small 700 sq ft cabin, I'm thinking I can still burn it since the back part of the block is still intact with the small holes quite visible. I'm giving up efficiency but again, for 700 sq ft, I shouldn't need to run it that hot. Does anyone see any safety issues with burning it in this condition? The blocks appear to be $200 online but to my thinking, may not be necessary to heat such a small space. Thanks.