What is the maximum temperature setting for a combination temperature and pressure relief valve?

The maximum temperature setting for a combination temperature and pressure relief valve is typically set at 210°F. This temperature is established to ensure safety and prevent the risks associated with excessive temperatures in a hot water system. High temperatures can lead to increased pressure, which may result in leaks, bursts, or dangerous situations like explosions.

The 210°F threshold is a standard limit recognized in plumbing codes to protect water heaters and the associated piping systems from failure due to overheating. By having this limit in place, it helps to maintain the efficiency and safety of the system, allowing for proper function while safeguarding against hazardous conditions that could arise from elevated temperatures beyond this point.