Location: 15 Mech-Plumbing
A very simple residential water heater. OK, it's a cylinder.
The reason to use it is it knows an array of standard capacities, and the tank dimensions for each. You can stretch the object in plan or 3D to change the size. You can also enter a custom size and dimensions.
In plan, the circle can be labeled with the capacity, or just 'WH'.
It's a slight improvement on WaterHeater JAM9; note the subtle spelling difference until I move the old one.