Where is the Circulation Pump typically installed in a hydronic system?

In a hydronic heating system, the circulation pump is typically installed at the Point of No Pressure Change. This location is critical because it minimizes the risk of causing turbulence or cavitation, which can damage the pump and reduce its efficiency. The Point of No Pressure Change is located where the pressure in the system does not significantly vary; this typically occurs at the return line before the water re-enters the boiler or heat source. Positioning the pump here enables the system to maintain a steady flow of water through the entire circulation loop without adversely affecting the system.

This setup ensures that the pump operates effectively at its designed head and flow rate, leading to optimal performance and longevity of the pump. It also helps ensure balanced system operation, aiding in reliable heating delivery throughout the hydronic system. Understanding the dynamics of where to place the circulation pump is crucial for proper hydronic system design and function.