What does a hot water supply temperature of 65°C ensure?

A hot water supply temperature of 65°C is significant for several reasons, primarily focusing on health and safety. This temperature is recognized as effective in eliminating harmful bacteria, particularly Legionella, which can thrive in water systems at lower temperatures. Maintaining water at this temperature helps ensure that the environment within hot water storage units is less hospitable to these pathogens, significantly reducing the risk of waterborne diseases.

While other temperatures can be effective in promoting comfort or efficiency, 65°C is specifically recommended in plumbing standards to protect health. This temperature also aids in maintaining a balance between effectively reducing bacterial growth and being safe to handle, minimizing the risk of scalding when used in residential applications.