Domestic Hot Water Temperature Code

If you read the warning labels on the side of most water heaters the maximum hot water temperature is 120 degrees fahrenheit on some labels and 125 degrees fahrenheit on other labels.

Domestic hot water temperature code. That still does not address the maximum storage temperature in the hot water tank. 501 7 pressure marking of storage tanks. 607 2 hot or tempered water supply to fixtures. Set the temperature of the water reservoir hot water heater to 140 f but deliver the water at 120 f by way of a mixing valve.

The developed length of hot or tempered water piping from the source of hot water to the fixtures that require hot or tempered water shall not exceed 50 feet 15 240 mm. This provision shall not supersede the requirement for protective shower valves in accordance with section 424 3. Hot water tempeature at the tap bath sink tub shower must be 55 c or less. New zealand building code requires that the maximum hot water temperature at the tap shall be 45 c or less for childcare centres schools homes for the elderly and similar facilities.

The 2015 international plumbing code section 607 2 has the following language.