How to make a chimney with your own hands — the main rules
DIY chimney posture — video
Structurally, the chimney can be performed in several ways. It depends on the characteristics of the room, type and features of the placement of the heating device. In general, one should strive for the simplest schemes. The fewer deviations of the direction of movement of the smoke from the vertical, the more stable the system will work as a whole.