pipe; this will go to the blower.
Next, you will need to cover the firebrick on the outside. Cut 1/8 inch metal to fit to the outside and top
and weld this together, to form a box for the firebrick. Be sure to have a metal bottom already cut out to
put under the brick so the sides can be welded to it.
You can when building this go with the opening in the top, and then you need not make a door for the
front. This is the simplest way to go and I believe the best. You hang the part down through the opening
in the top. At the front, there is a small opening for the temperature probe. This is a 1/4 or 3/8 inch hole.
If you decide to build a front-loading furnace, you will need a 2-inch opening in the top of the furnace for
the gas. In addition, you will have to build a metal door for the front and line it firebrick.
You now will need to find a used Kirby vacuum cleaner blower, or any other type of high-speed blower to
provide the air for the furnace.
A shop Vacuum blower also works great. You will need to find an adjustable rheostat to control the
speed of the blower. The speed that it runs would make it impossible to light the oven. The final step is