wasserführende
Wasserführend is a German adjective that translates to "water-carrying" or "water-bearing." It is commonly used to describe systems, devices, or structures that are designed to transport, contain, or interact with water.
In the context of heating systems, wasserführend refers to a component that is connected to the water
The term can also be used more broadly. For example, a "wasserführender Ofen" is a water-carrying stove,