Water heaters or hot water vent are vertical or horizontal vent ducts which works on the principle of rising hot air. Water heaters should remove exhaust air.
Water heaters must be vented outside because the exhaust air should remove from the water heaters and the vent go directly through its walls.
The residual gas fumes must be vented out during the burning process through the vent pipes, otherwise, it could lead to dangerous impacts.
The vents do not rely on the buoyancy of hot air and can be run horizontally to the outside of the house.
Thus, the edifices from the hot water vent look like an edifice and are made up of insulators and plastics.
To know more about hot water vents, refer to the following link:
https://brainly.com/question/9970049
