Quick Answer: What Should I Set My Hot Water Heater To?

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.

What is the best temp for a water heater?

The Department of Energy recommends setting your water heater to 120°F (49°C) to save money on hot water, whereas the Consumer Product Safety Commission recommends the same temperature in order to prevent scalding.

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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 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.

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 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.

Should I turn down my hot water heater?

In most cases, it may not be necessary to turn off the water heater, but it also won’t hurt, either. However, there are two reasons when you should turn off the unit to prevent too much pressure or heat from building up inside the tank: The tank is empty (or close to it) and won’t be refilled for a long period of time.

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Is 50 degrees hot enough for hot water?

Water that is 57 degrees can cause a major burn within a few seconds. This highlights just how dangerous water can be over the 50 degree temperature mark even if it is only a few degrees. In the case of how hot is too hot, the absolute maximum should be 50 degrees for every appliance located in a bathroom area.

Can bacteria grow in a hot water heater?

There are a few bacteria that are likely to grow in your water heater, but the most common is legionella. Legionella is the bacteria that causes Legionnaires’ disease. You can get Legionnaires’ disease by inhaling microdroplets of legionella-contaminated water. Legionnaires’ disease is a severe type of pneumonia.

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.

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.

How hot is scalding water?

Water at 60 °C (140 °F) can induce scalding injuries in less than 3 seconds, while it takes 10 seconds to get an injury at 57 °C (135 °F) and 1.5 to 2 minutes in 52 °C (126 °F) hot water. Scalds are generally more common in children, especially from the accidental spilling of hot liquids.

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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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