What system utilizes water to distribute heating or cooling?

The hydronic system is specifically designed to use water as the medium for transferring heat. In this setup, water is heated or cooled and then circulated through pipes to provide heating or cooling to different spaces in a building. This method is efficient because water has a high heat capacity, allowing it to carry more heat energy relative to its volume compared to air.

In a hydronic heating system, water is typically heated in a boiler and then distributed through radiators or underfloor piping. Conversely, in a hydronic cooling system, chilled water can be circulated to cool spaces effectively. This approach is commonly appreciated for its comfort and energy efficiency compared to other heating and cooling systems.

While the HVAC acronym encompasses a broader range of systems for heating, ventilation, and air conditioning, it does not exclusively refer to water-based systems like hydronic. Geothermal systems rely on the earth's heat and may use water but typically involve more complex heat exchange methods. Ventilation systems focus primarily on air distribution rather than liquid mediums for temperature control. Therefore, the hydronic system is distinct in its use of water for distributing heating or cooling.