What potential issue can arise from improper system pressure in hydronic heating?

Improper system pressure in hydronic heating can indeed lead to noise and system failure. When the pressure is either too high or too low, it disrupts the balance and functioning of the system. High pressure may cause water to flow too rapidly, which can produce excessive noise and even lead to physical damage or failure of components due to stress. Conversely, low pressure can result in insufficient circulation, potentially leading to low flow rates, overheating, or localized failures. In both scenarios, noise often serves as an indicator of underlying issues, which can escalate into significant system failures if not addressed promptly. This highlights the critical role that maintaining the correct pressure plays in ensuring the efficiency and longevity of a hydronic heating system.