Friday morning before work, I finished cutting the top to allow for a smaller, hinged lid so that I don't have to remove/open the entire lid to put scraps inside.
After work I went to TechShop to bend up some handles and MIG weld them to the top as well as a hinge for the smaller lid. I found a cool old wingnut and bolt in the community scrap bin that I used for a handle for the smaller lid.
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Here the lid is cleaned up a little with a wire brush in the angle grinder. No reason really, just piddling around.

I then shot the top and bottom with some high temp BBQ grill paint in a rattle can. I didn't put a lot of effort in the paint job as it's mainly just to keep the rust under control.
Sunday morning, I got up and started on it again. I put the 1-1/2" sheet metal screws in the previously drilled holes. Recall, these will hopefully help to give the cement something to bite into on the walls and lid. Then, I got to work putting the forms together.

I mixed the two ingredients thoroughly. Dry at first and then added just enough water to give it an oatmeal-like texture. I realize that isn't the best example, people like there oatmeal different ways. In general, I think most people make oatmeal too runny. I like my oatmeal just moist enough where it sticks together but not so wet that you can pour liquid out of it. I mixed the mortar/perlite in the same manner: it would hold together when squeezed but no water dripped out.

Unfortunately, it's chilly and damp here so now I am concerned about how long it will take for the mix to dry out sufficiently to use the furnace.
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