How does air in the hydronic system affect its performance?

Air in a hydronic system significantly compromises its performance primarily by causing noise and reducing efficiency. When air gets trapped in the piping system, it can lead to the formation of air pockets. These air pockets can block the flow of water, which inhibits the efficient circulation of the heating medium throughout the system. This not only leads to potential cold spots where adequate heating cannot be achieved, but also increases the workload on the pump, resulting in energy inefficiencies and increased noise levels as the system struggles to circulate fluid past these obstructions.

Moreover, the presence of air can lead to other operational issues, such as corrosion from the increased exposure of water to air, which can further diminish the lifespan of system components. Properly purging air from hydronic systems is therefore essential to maintain optimal functionality, efficiency, and to ensure quiet operation.