120 degrees Fahrenheit is the safety recommendation against scalding, but 140° is the common default setting. Most experts agree that anything below 120 degrees creates a risk for bacteria to develop inside your water heater from stagnant water, such as legionella that causes Legionnaire’s disease.

What is the lowest setting on a gas water heater?

How to Set Temperature on a Gas Water Heater

  • Low (or Warm) = 80-90°
  • Hot (or triangle symbol) = 120°
  • A = 130°
  • B = 140°
  • C = 150°
  • Very Hot = 160°





What is the minimum temperature for a water heater?

Don’t set your water heater to anything below 120 degrees, as diseases can develop in the stagnant water inside the water heater, particularly Legionella, which is quite dangerous.

Should I set my water heater to AB or C?

The Department of Energy recommends setting your heater to 120 degrees Fahrenheit. That should be plenty hot enough for most uses in your home. Now, some water heater temperature controls come with settings that read “A-B-C” as opposed to numbers.

What should my hot water tank thermostat be set at?

60-65ºC





A domestic hot water cylinder thermostat should be set at 60-65ºC. This is high enough to kill off harmful bacteria such as Legionella. If you set the thermostat much higher than this the water that comes out of the taps will be too hot and there’ll be a risk of scalding.

Is 50 degrees hot enough for hot water?

The answer is: More than 46, but less than 70 degrees Celsius. Why? Because a hot water temperature over 46° (ideally 60+) should ensure legionella bacteria – the cause of Legionnaires’ Disease – do not survive,.

Is 115 too low for water heater?

Raising Your Water Heater Temperature



Anyone can be burned from hot water, but children, the elderly and people with sensitive skin are most vulnerable. For these populations, it’s recommended to keep the water heater temperature at 120 to 125 degrees.

What is the maximum temperature that water heater should be set at so as not to scald?

120 Degrees



120 Degrees is the recommended max temperature for water heaters, according to both the American Society of Sanitary Engineering and the US Department of Energy. Firstly, setting the max temperature to 120 degrees prevents the water from scalding your skin.

Can I set my water heater to 125?

What’s a safe temperature for water? On the side of most water heaters, you’ll find a warning that says water temperatures of 125 degrees Fahrenheit can cause burns or death. To be safe, the water coming out of the plumbing fixtures in a home shouldn’t be any hotter than 120 degrees.

How do I adjust the temperature on my gas water heater?


Quote from Youtube video: Move the dial to the low or vacation setting. This means your water heater will heat less frequently while you're away. Once you return from your trip turn the dial back to the ideal.

Does turning up water heater make hot water last longer?



Turning up the water heater temperature makes hot water last longer as the desired temperature is reached by using less hot water and more cold water. The recommended maximum temperature should be 120 °F. Hotter water poses risks to users and the water heater and increases energy bills.

Is 60 degrees water hot?

Hot water is generally 130 degrees Fahrenheit (54 degrees Celsius) or above. Warm water is generally between 90 and 110 degrees Fahrenheit (32 to 43 degrees Celsius). Cold water is generally between 60 and 80 degrees Fahrenheit (16 to 27 degrees Celsius).

Can 55 degree water burn?

At 60°C, it takes one second for hot water to cause third-degree burns. At 55°C, it takes 10 seconds for hot water to cause third-degree burns.

Can 45 degree water burn you?

A water temperature of 49 to 52°C (120 to 125°F) is a reasonable compromise between a household’s need for volume of hot water and safety. At 49°C (120°F) it takes 10 minutes and at 52°C (125°F) it takes two minutes to cause full thickness burns of adult skin.

What does 40 water feel like?



40° C is like a hot bath, and for me, is the most pleasurable, in measured doses. It takes a moment to get used to and is deeply relaxing. After about ten minutes, you may feel tired and need a break. Some may find it uncomfortable – as always, listen to your body.

What happens to water at 50 degrees Celsius?

At 50 degrees celcius, water is a liquid.

Is 50c hot to touch?

Touching hot surfaces



1st Degree Burn (minor burn): Non-metallic 85°C brief contact. Metal 60°C brief contact. Metal 50°C hold.

What is the lowest temperature a human can survive?

At 82 F (28 C) you can lose consciousness. Below 70 F (21 C), you are said to have profound hypothermia and death can occur, Sawka said.

How can you tell the temperature of water without a thermometer?



Quote from the video:
Quote from Youtube video: When large bubbles start to gently break the surface of the water. It is around 190 degrees fahrenheit or 90 degrees celsius.