How to key the pit chili boiler

1, first on the ground, first with soil, sand, etc. to raise the height of the kang to half the height, and then bricked into a zigzagging flue, known as the kang hole.

2, secondly, the width of the kang hole should not be more than the length of a brick, usually two-thirds of the length of the brick, and the height is about four or five bricks high, and the horizontal bricks are laid in the same direction. If the kang is very large, then every one or two kang holes in the kang hole should be left one or two deep pits, that is, after taking out the soil at the bottom of the kang, reinforced with bricks, in order to remove the ash on the surface of the kang.

3. Then there must also be an interface with the chimney. The surface of the kang is then filled in horizontally with bricks and smoothed with sand.

4, finally the surface of the kang must be wiped with yellow sand and a little yellow clay in a ratio of about eight to one. If cracks appear on the surface of the kang after wiping, it means that there is too much yellow mud and it needs to be wiped again. In order to be beautiful, the sides of the kang can be decorated with sand gray.