in China most people live in apartment.
It is not possible to use common charcoal burning smoker inside kitchen.
I made UDS from stainless steel barrel, which can be placed on top of gas stove, and the smoke draft fan above the stove can draw smoke out of room
Diameter 12", height 12",
Revised fire basket adopted from ceramic smoker.
Three pieces of hanging beams
Mechanical Thermostat/10 CFM fan/AC/DC adapter
Sea and Land mail cost door to door $49