GreenSpecs
Allianz - Green Building Council Australia

Hot Water Thermostat

Simply turning down the thermostat on your instantaneous hot water system to 50°C can help save you money on your energy bills. When set too high, your water heater can waste money in standby heat losses.

To prevent bacterial growth, make sure to check what kind of hot water system you have before changing the thermostat. If you’re renting, speak to your landlord about the model of your system before turning down your thermostat.

If you have a storage hot water system, you do have to set it to at least 60 degrees to reduce the risk of harmful bacteria growth.

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