What does “hydronic” mean in the context of heating systems?

The term "hydronic" specifically refers to systems that use water as the medium for heating. In hydronic heating systems, water is heated in a boiler and then circulated through pipes to radiators, baseboards, or underfloor systems to provide heat to a space. This method is efficient and can deliver consistent warmth, as water can hold and transfer heat effectively.

Using water as the heat transfer medium allows for precise control over heating, enhances energy efficiency, and provides comfort. Unlike air heating systems, which depend on air flow and may lead to drafts, hydronic systems provide more even and controlled heating throughout an area.