What is the process diagram of changing oil drums into baking sweet potato stoves?

The following is the production diagram of the process of changing the oil drum into a baked sweet potato stove:

1, find an oil drum and uncover it.

2, buy a furnace wall, that is, the kind of oval barrel, and put it in.

3. Then pile mud beside it (remember it must be mud with straw, just pile it up to the height of the stove arm), and you can bake sweet potatoes. ?

Extended data

Features of baking sweet potato stove:

1. It is best to sell the hottest business in winter. You only need a tricycle to support a small business that can operate quickly.

2. The new sweet potato stove replaced the traditional big oil drum sweet potato stove, which made the baked sweet potato more sanitary and beautiful.

3. The oven for baking sweet potatoes occupies a small area, and the time for baking sweet potatoes is shorter. The machine has heat preservation function, so no one needs to take care of it.

References:

Baidu encyclopedia-baked sweet potato stove.