Tempering Valves on Gas Hot Water Systems play a very important role
A tempering valve mixes your hot and cold water to deliver water out of your hot tap at a constant temperature, reducing the risk of accidental scalding.
Tempering valves have a temperature sensitive element which adjusts the mix depending on the temperature of the incoming water flowing through the valve. The mechanism is a sliding valve that varies the ratio of hot and cold water that is allowed to pass. The valve is designed to maintain a constant outlet temperature.
Plumbers are required to make any adjustments to the valve.
To prevent bacteria growth, particularly legionnaires, hot water should be set at a minimum of 60°C in your hot water unit cylinder, and then regulated for your bathing outlets, through the tempering valve, to between 38°C – 50°C .
It’s so important to make sure that your hot water unit is set to the correct temperature.
A child can be severely scalded in as little as a second, when the water temperature is around 65°C, a temperature not uncommon in some Australian homes.
Our regulations state that the hot water service temperature must not exceed 50°C at outlets that are used for bathing. The recommended temperature setting for very young children is 37°C – 38°C.
Tomlinson Plumbing can assist you with the supply, installation, service and repair of all makes and models of hot water systems.