Domestic Hot Water Tank Temperature Setting

A hot water setting of 60c in hotels hospitals and other large public buildings can control legionnaires disease.

Domestic hot water tank temperature setting. Test your water temperature. For a final test check the water heater temperature the following morning before anyone. Fill a glass and check the hot temperature. Guidelines from the department explain that most hot water heaters are automatically set to 140 degrees fahrenheit but that s usually unnecessary.

In general many who live alone aim for a lower temperature in the acceptable range since demand for hot water is less and it saves money. However there is less danger of bacterial growth in smaller domestic hot water tanks. If the water is above 120 degrees adjust the dial wait about three hours and check again. The occupational safety health administration osha recommends water heaters be set to at least 140 degrees fahrenheit 60 degrees celsius to minimize the growth of legionella and other.

Consequently osha recommends the minimum water heater outlet temperature in residential systems to be set at 130 degrees f to produce a faucet temperature of at least 120 degrees f. Homes with occupants that have a suppressed immune system or respiratory disease should keep the hot water set to 140 degrees. However there is less danger of bacterial growth in smaller domestic hot water tanks. Not only will setting it to 120 degrees meet most.