Readers ask: What Should A Hot Water Heater Be Set At?

Is 140 too hot for water heater?

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 microorganisms.

Is 130 too hot for water heater?

Professionals recommend keeping your water heater set at a temperature between 130 and 140 degrees Fahrenheit. Any higher, or lower, could actually be dangerous for you and your family. While turning the temperature up higher can result in burns, turning it lower than the recommended setting can also be dangerous.

What should my hot water tank thermostat be set at?

The short answer: 120 degrees Fahrenheit. This is the preset thermostat temperature in most new water heaters, and it’s the recommended setting of the U.S. Department of Energy. At this temperature, harmful pathogens like the kind that cause Legionnaires’ disease are prevented from multiplying and may be killed.

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Is 150 too hot for water heater?

The recommended setting for household water heaters is not 150 degrees, but slightly less _ 140 degrees. Water temperatures higher than 140 degrees can burn the skin and are particularly dangerous for young children and the elderly. People with poor circulation can scald themselves without knowing it.

Can 140 degrees burn you?

Most adults will suffer third-degree burns if exposed to 150 degree water for two seconds. Burns will also occur with a six-second exposure to 140 degree water or with a thirty second exposure to 130 degree water. Even if the temperature is 120 degrees, a five minute exposure could result in third-degree burns.

Is 135 too hot for water heater?

The American Society of Sanitary Engineering recommends that hot water tanks be set from 135 to 140 degrees, to inhibit the growth of Legionella bacteria, with the installation of anti-scald devices and tempering valves to prevent hot water injuries.

How hot is too hot for tap water?

One was the “use temperature” and the other was “the maximum temperature” to prevent scalding. It’s generally agreed that 120 degrees Fahrenheit is the maximum safe hot water temperature that should be delivered from a fixture. Therefore hot water above 120 degrees Fahrenheit can be considered hazardous.

Is 125 too hot for hot water heater?

If you invest in one or more thermal protection devices to protect against overly hot water, the water heater could be safely set a little higher than 125 degrees. Most water heaters don’t have a thermostat control that is calibrated in such a way that you can just dial in 125 degrees.

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Does turning up water heater make hot water last longer?

Turn up the thermostat on the hot water heater. One of the easiest ways to make a hot shower last longer is by using less hot water while it’s at a higher temperature. To do this, turn up the temperature on the thermostat that’s attached to the hot water heater tank. Be conscious of other hot water in your home.

Is it bad to turn your hot water heater all the way up?

Turning your hot water heater all the way up is bad because it will reduce your heater’s life, increase your electricity bill, and could cause scalding.

How long does it take for a hot water heater to heat water?

How Long Does it Take for a Gas Water Heater to Heat Up? Your average gas tank heater takes about 30 to 40 minutes to heat water once it enters the tank. This initial heat up occurs when new water from your plumbing supply is fed into the tank.

What is the maximum temperature for a water heater?

A new water heater is typically preset to a maximum temperature of 140 degrees Fahrenheit. Some say that’s the ideal temperature, while others argue that it’s better to reduce the maximum temperature to 120.

What is the average hot water temperature?

The standard temperature for most water heaters is 140 degrees F, but the Department of EnergyLink opens in a new tab recommends turning down the temperature to 120 degrees to save energy.

Should both thermostats on water heater be set the same?

The majority of electric water heaters have two thermostats: an upper and a lower, located under two control panels. To ensure your electric water heater works as efficiently as possible, you should set both of the thermostats at the same temperature.

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