This was also my first geo petro boiler, and I wasn't sure how much maintenance would be required, so easy mnt was in my scope, not compactfulness.

The mesh tile was originally an insulation block and the door wasn't there. When I added the door, I switched the insulated tile for mesh to make sure opening the door wouldn't allow for petro to exit the wrong way.

nice! i like my designs a little more compact, however this design allows for easy maintenance, whats the purpose of the mesh tile though?