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What temperature should the hot water system be set at?

A storage hot water system should store the water in the tank at or above 60°C to inhibit the growth of bacteria such as Legionella.

However, the water being delivered to the taps in your home, especially those in the bathroom, should be at or below 50°C to prevent scalding accidents, a tempering valve is used to achieve this.

Instant hot water systems can be set at 50°C.

For more information -TMV vs tempering valve. What are they and why do we need them?


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