Where should the TPR valve be located on a hot water tank?

The temperature and pressure relief (TPR) valve should be located in the upper portion of the hot water tank. This positioning is crucial because it allows the valve to effectively release excess pressure and temperature buildup that may occur during operation. A valve located in the upper region can quickly respond to potential overpressure scenarios, preventing the risk of tank rupture or other dangerous failures.

Placing the TPR valve in the bottom of the tank would not allow it to function properly, as the high-pressure steam or water build-up is typically situated toward the top where heat accumulates. Similarly, having the valve at the base of the tank would not allow for effective pressure relief and could pose safety risks. The side of the tank is often not the standard location for installation because it may not be positioned to accommodate the necessary piping and flow direction for efficient operation. Thus, having the TPR valve in the upper 6 inches is the proper placement to ensure safety and compliance with plumbing codes.