Water Temperature Setting
The temperature of the water in the water heater can be regulated by setting the temperature dial of the adjustable surface mounted thermostat(s) located behind the jacket access panel(s). Dual element heaters have 2 thermostats.
similarly, What is the maximum temperature for a hot 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.
on the other hand, Where is the thermostat in a water heater?
Electric water heaters often have two thermostats — one at the top and another at the bottom of the tank. And most tankless water heaters feature a display with a temperature readout and controls for adjusting the temperature.
also, How much does it cost to replace a water heater thermostat? The average thermostat replacement cost is between $100 and $300. Most other repairs are equally affordable. There are two main types: gas and electric.
Do you have to drain a hot water heater to change the thermostat?
Always disconnect the power or shut off the breaker before doing any work on a water heater. To change thermostats, you will need to remove the access panel and safety cover (do this for both upper and lower access panels on dual element units).
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. … It’s smart to stay within the range of 120 to 140 degrees Fahrenheit (49 to 60 degrees Celsius).
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.
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 causes a water heater thermostat to burn up?
Usually the cause of overheated water is a lower heating element that has a leak to ground. You need to turn power off to the heater. Disconnect both wires to both elements.
Can you replace the thermostat on a gas water heater?
The water heater thermostat is part of the gas valve. They cannot be replaced separately from the valve.
How long does a water heater thermostat last?
It would be nice to know when the time is right to replace your water before it springs a leak and causes an inconvenience or worse yet, damage to your home. Typically a residential hot water heater lasts between 6 and 13 years. Beyond 12 years, you are on borrowed time!
What is the most common problem with water heaters?
A water tank that produces too little hot water is one of the many common water heater problems you may encounter. Usually this can be solved by turning up the temperature on the tank’s thermostat. Be careful, however, not to turn the temperature up too high, as this can be a scalding hazard. No hot water.
What trips the reset button on a hot water heater?
The reset button: a red button located on the water heater itself (just above the thermostat) that trips when the water temperature exceeds 180 F. The reset button is sometimes referred to as the “ECO” (emergency cut off) or “high limit switch”.
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.
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.
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”.
Is 125 to hot for water heater?
Your water heater should not be set any higher than 125 degrees. This may seem too low to you – but there is a logical reason behind this number. Any higher than 125 degrees can cause serious burns, especially to children and the elderly.
What temperature should water heater 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.
How hot is too hot for water?
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 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.
What temperature kills bacteria in hot water tank?
According to the American Society of Sanitary Engineering, you should set your water heater between 135 and 140°F. At this temperature, you’ll kill any legionella present and stop any more from growing. This high temperature will also kill bacteria besides legionella that may be present.
Is 125 degrees to hot for water heater?
Your water heater should not be set any higher than 125 degrees. This may seem too low to you – but there is a logical reason behind this number. Any higher than 125 degrees can cause serious burns, especially to children and the elderly.
Why is my water heater tripping the reset button?
A short in one of the heating elements allows power to flow through the element even after the thermometer shuts off its power. This means the heating element is still working and will continue to increase the water temperature, eventually tripping the reset button.
Can a thermostat go bad on a hot water heater?
Usually, when the upper thermostat goes bad, you will have no hot water at all, while a bad lower thermostat makes itself known when there is only a small amount of hot water before the tap water goes cold. … Once you have determined the faulty thermostat, you can replace it and have your hot water heater working again.
Does a hot water heater have a reset button?
Somewhere on your electric water heater, you’ll find a reset button. It’s usually red and often located near the thermostat. It may also be hidden behind a removable metal panel on the unit—and then behind some insulation. … If your water heater now has power, you’re all set.
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