Most hot water heaters have a A-B-C knob. Here is what temperature each letter stands for: Hot- 120 degrees. A- 130 degrees. B- 140 degrees.
Should I put my water heater on 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 heater be set at ABC?
How To Turn Up Your Water Heater
- Low (or Warm) = 80-90°
- Hot (or triangle symbol) = 120°
- A = 130°
- B = 140°
- C = 150°
- Very Hot = 160°
What mode should my water heater be on?
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 do the numbers on a water heater mean?
The serial number contains the year the water heater was manufactured and the model number will tell you the size i.e. how many gallons the water heater holds.More importantly, if you ever need to call the manufacturer for any reason, they will always ask for the model and serial number.
How do I adjust the temperature on my AO Smith gas water heater?
Set both thermostats to 120°F. If higher temperatures are required turn the water temperature dial clockwise ( >>) to increase the temperature. (Turn the dial counter clockwise ( << ) to decrease the temperature.) Adjust both thermostats to the same temperature setting.
How do I adjust the temperature on my AO Smith water heater?
The thermostat’s control is a small screw set into a covered housing, and you’ll need a flathead screwdriver to turn it. Temperature adjustment is simple and intuitive; you’ll turn clockwise to increase the temperature and counterclockwise to lower the temperature.
What is code for hot water temperature?
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.
What temperature should water heater thermostat be set at?
120°F
According to the Department of Energy, a 120°F water thermostat setting is more than adequate to slow mineral buildup and corrosion in your water heater and pipes while keeping your water supply safe to use.
How do you read a serial number on a AO Smith water heater?
A. O. Smith serial numbers contain a lot of information, including when the heater was manufactured. This can be determined by looking at the first four numbers, ignoring any letter that may start the serial number. The first two numbers represent the year the heater was built.
How do you read the manufacture date on a water heater?
The year of manufacture is noted by the first letter of the serial number, and the month is the second letter.
What is normal water temperature?
According to the American College of Sports Medicine, water and other drinks should be between 50 and 72 degrees F for optimal hydration.
What is a good water temperature for shower?
The optimal temperature for shower water or bath water, so that it washes away environmental dirt and bacteria, is no higher than 112 degrees Fahrenheit, Cleveland Clinic dermatologist Melissa Piliang says. Few things feel better than a hot soak on a cold day.
Is 140 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.
Does turning up water heater make hot water last longer?
When you raise the water heater temperature, the tempering valve will automatically reduce the volume of hot water in the mix to prevent scalding. Thus, the rate of consumption DOES depend on temperature. The lowered rate WILL make the hot water in the heater last longer.
Why is my hot water not hot enough?
The hot water may be depleted if someone showers before you, or if you run a hot-water appliance before you shower. Check to make sure the water heater thermostat isn’t set too low.If your water heater is old10 years or olderit’s possible that you have a broken heating element, thermostat, or gas valve.
Why is my hot water not hot?
If there is no hot water or the supply is not adequate or is too hot, check the upper thermostat. If the thermostat is busted, it should be replaced. Lack of regular maintenance can cause issues even though the thermostat is working because of sediment buildup. To fix this, flush your water heater.
Why does my hot water run out so fast?
Water Heater Runs Out Of Hot Water Quickly: Possible Reasons Why. As mentioned above, several things can cause a home’s hot water supply to run out faster than it should. The three most common culprits are sediment build up, a faulty heating element and a broken dip tube.
Where is the serial number on AO Smith?
The serial number can be found on the identification sticker on the device.
How long should an AO Smith water heater last?
between 6 and 12 years
How Long Do AO Smith Water Heaters Last? Most AO Smith warranties range between 6 and 12 years, usually closer to ten. This means that the manufacturers fully expect your water heater to last at least a decade, and possibly twice that even after it goes out of warranty.
How often should water heaters be replaced?
Water Heater Lifespan
If your tank water heater is more than 10 years old, it may be time to consider replacing it. With proper maintenance, a tank water heater tank should last six to 12 years. A tankless water heater can last for more than 20 years.
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