2026-04-22
Why Pressurized Solar Water Heaters Overheat, Leak, or Trigger Pressure Relief Valves—and How to Prevent It
A pressurized solar water heater does not usually fail without warning. Overheating, leakage, and pressure relief valve discharge are often the visible results of deeper system imbalance involving circulation, expansion control, storage sizing, pipework, and operating strategy. This article explains the real causes behind common solar water heater pressure problems and how to prevent them through better design, installation, and maintenance.