Domestic Hot Water Tank Temperature
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Guidelines from the department explain that most hot water heaters are automatically set to 140 degrees fahrenheit but that s usually unnecessary.
Domestic hot water tank temperature. 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. A water temperature exceeding this poses serious risk of bad burns particularly to children. However there is less danger of bacterial growth in smaller domestic hot water tanks. A hot water setting of 60c in hotels hospitals and other large public buildings can control legionnaires disease.
In industry hot water and water heated to steam have many uses. Best hot water mixing valve for hot water tank. Homes with occupants that have a suppressed immune system or respiratory disease should keep the hot water set to 140 degrees. Test your water temperature.
The mixing valve takes the hot water from the newly set heater 140 f and mixes it with cold water until it can be released from the valve at a safe 120 f temperature. 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. For combined heating hot water and domestic hot water systems when the heating hot water system exceeds 140 f the ipc code requires a temperature actuated mixing valve conforming to asse 1017 to limit the domestic hot water temperature to a maximum of 140 f. That still does not address the maximum storage temperature in the hot water tank.
If you drop the temperature down to 120 degrees fahrenheit energy experts claim that you could potentially save hundreds of dollars in a lower energy consumption. Domestically water is traditionally heated in vessels known as water heaters kettles cauldrons pots or coppers. However there is less danger of bacterial growth in smaller domestic hot water tanks. Not only will setting it to 120 degrees meet most.
Avoiding burns for vulnerable people. Consequently the minimum water heater outlet temperature in residential systems should be set at 54c to produce a tap temperature of at least 49c. 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. The standard temperature for many water heaters is 140 degrees fahrenheit.
Most experts recommend that hot water temperature should not exceed 125 f 51 66 c. Typical domestic uses of hot water include cooking cleaning bathing and space heating.