Since most domestic hot water tanks come factory-set at 60 degrees Celsius, there is a risk of scalding. To prevent/minimize this risk follow these tips:
- Never leave a child alone while filling a bathtub with water, and always check the water temperature before putting your child in the water.
- Practice turning the cold water on first, then add hot water until the temperature is comfortable and test the water temperature before bathing or showering.
- Educate your children to turn the cold water on first, and the hot water off first.
If the water coming from your tap is too hot, you can install valves in the plumbing lines that will reduce the temperature of the water delivered at the tap by mixing in cooler water. Alternatively, you can install anti-scald devices at individual taps which slow the water to a trickle if it gets too hot.
If you are in a home with small children or elderly occupants, it may be appropriate to turn down the temperature of the hot water tank. If you choose to do this, the Canada Safety Council recommends a temperature no lower than 54 degrees Celsius. Hot water temperatures below 50 degrees Celsius may increase the risk of Legionnaires’ disease, which is a form of pneumonia, caused by bacterial growth in the tank. The disease is caused by Legionella bacteria, which live in water.
Source: Canada Safety Council