Old farm homes of the past usually had a special area or receptacle that was used to burn all the house trash. Many had compost piles for the kitchen scraps, which became potting soil for the garden. The burn pile was just that, or a couple of 50 gallon metal barrels with the tops cut out. Then some others went the whole 9 yards and had a burner built out of bricks and cement, with a pyramid shaped top formed by brick. Ours had a base about 4 feet square with a top pyramid to form the chimney. The opening at the top is approximately one foot square. The sides and back were around 4 feet high and with the pyramid top, it was nearly 6 feet tall over all. Then my dad thought how nice it would be to have a bar-b-que grill attached on the side for cooking outside. This must have been kind of common dual purpose back in the 1940’s or earlier. Today we enjoy the local trash pick-up service once a week, and grill manufacturers like Webber.
The “L”s make it very easy to give you a reference line from the brick already in the outer walls to align the new center wall.
Strangely enough, they fit just perfectly into the cavity. Four made the support I wanted and then there was a gap in the center that I filled with old brick.
At the back you will see two vertical 1x2’s clamped to the back wall at the top, and a horizontal 1x2 member just above the wire mesh. The horizontal piece was leveled and will support the end of a 2x4 to sift back and forth after I get most of the cement poured into the slab area.