What is a wall hung water closet?

A wall hung water closet is a type of toilet that is mounted directly to the wall, which means it does not touch the floor. This design allows for easier cleaning and enhances the aesthetic appeal of a bathroom by creating a more open and spacious look. The tank of the wall hung toilet is typically concealed within the wall, further contributing to its streamlined appearance.

The other options describe toilets with specific characteristics that do not align with the definition of a wall hung water closet. For instance, a toilet that is sitting on the ground is a standard floor-mounted toilet. A portable toilet refers to a self-contained unit often used in outdoor settings and events, while a toilet designed for outdoor use typically does not meet the requirements or functionality of a wall mounted model. Thus, the choice of a wall hung toilet is distinctly associated with its unique mounting mechanism and design features.