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Control your water heater temperature

Is your water heater too hot, too cold, or just right?

Your water heater is one of the most important components of your plumbing system, and ensuring it's set to the right temperature will help you stay safe and manage your energy costs.

Use a temperature gauge to set your water heater temperature between 60ºC (140ºF) and 65ºC (147ºF). The minimum temperature is needed to prevent the growth of bacteria. The top-end temperature recommendation is helpful to reduce the risk of scalding and to manage your electricity bill.

If the factory setting on your water heater was set too high, consider adjusting it. You can save 5% on your electricity bill by reducing your electric hot water heater temperature by 6°C, which equates to up to $21 in savings per year.

Scalding is even better prevented by installing a mixing valve between your hot water tank and your fixtures, which will control the temperature at faucets and showerheads to a maximum of 49ºC. It’s most cost effective to add the mixing valve right off the top of your water heater, which requires professional installation. If you wanted to add it just before the fixture (e.g. under the kitchen sink), it’s a simpler process.