I'm getting close to having my brewhouse liberated from the "shed" title that it once served as, and had this idea....(brief visual of the brewhouse: approx 75 sq ft trapeziod shape, 2x4 stud framing with OSP panel walls inside and pre-fab siding panels out...regular tar shingle roof)
In one corner of my brewhouse I was thinking of putting in a 3' x 3' semi square brick "tub" about 3.5' tall (almost to the top of the BK) to use as a hot box for the banjo burner. I would have a exhaust hood, and only burn with the fan on, window and door open. The upper 2 sides of the square where the walls are would be sheet metal covering the wood above the bricks. I do not think that there could be any fire hazard, but there always is no matter what. I saw a mini version of what I am thinking on one of the beer porn-180 brew rig threads once, but up on a stand.
Has anyone done something like this or does this just sound like a bad idea?