Understanding Why Hot Water Heaters Rupture
A water heater can rupture for various reasons. Even though it’s not that common of a scenario, understanding why this happens can help prevent accidents and unit failure. 1. Pressure Buildup Heated water undergoes thermal expansion. This means that hot water occupies more space than cold water. The expansion will create pressure in a closed system, such as a water heater. The tank is designed to withstand this pressure through a pressure relief valve or an external thermal expansion tank. However, if it is malfunctioning or locked, the relief valve does not release pressure from the tank. Setting the thermostat...
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