The Right Hot Water Tank Temperature

October 25, 2019

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There is no universal formula for hot water in your home.  It is a setting you have to set yourself, so what is the ideal hot water heater temperature?  Well there is no “perfect” hot water heater temperature for every single house but depending on who lives in your home and how much money you want spend on hot water overall, there are some things to consider. Most hot water heaters are automatically set to 140°F from the factory, but that’s usually unnecessary financially and dangerous if you any children or elderly people are living with you as the higher temperature increases the risk of them being scalded by water from the tap at this temperature. The U.S. Department of Energy recommends the 120 degree-mark for both maintenance and savings purposes. Not only will setting it to 120°F meet most of your hot water needs, it also slows mineral buildup and corrosion in your water heater and pipes. However there are instances where 140°F water is recommended. The primary reason is if you have someone in your household with a suppressed immune system or chronic respiratory disease, as the higher temperature will better defend you from acquiring legionellae bacteria (Legionnaires’ disease). Additionally, if you have a dishwater that doesn’t pre-heat the water, you’re either going to want to set your hot water heater to 140°F. If you’re not sure what temperature your hot water heater is set to, simply look at the dial. If for some reason your hot water heater doesn’t have a temperature dial, take the temperature from your faucet. To do this, turn the hot water all the way up, allow it to run for a few minutes, and then take the water’s temperature.

SOURCE: Lifehacker

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